Provided is a method for manufacturing an electrode plate in which short-circuiting can be minimized by removing excess adhered active material without damaging the electrode plate surface. A lattice substrate (1) made from lead or a lead alloy is packed with a paste-like active material and then pressed to produce a filled electrode plate, and the filled electrode plate is subjected to initial drying. A spiral airflow (8) is directed against the electrode plate surface of the initially dried filled electrode plate (10) and excess active material adhering to the electrode plate surface is removed. Furthermore, the active material on both end surfaces in the thickness direction of a frame skeleton (2) of the filled electrode plate (10) is removed using a brush.
Provided is a production method for a molding material that exhibits little variation in the amounts of short fibers and powdered resin in individual products, that does not cause damage to a mold, and that makes continuous production possible. At a loading step, a slurry is supplied toward a slurry dispersion member (7) from above. The slurry dispersion member (7) has a shape in which the area of a cross-section thereof in a direction that extends in the upward direction and that is orthogonal to the upward direction decreases as proximity to the upward direction increases. At a cleaning step, a dispersion medium that is the same as the dispersion medium used in the loading step or water is poured toward the slurry dispersion member (7) from above, thereby causing short fibers and powdered resin that are stuck to the top of the slurry dispersion section (71) of the slurry dispersion member (7) to fall therefrom. The dispersion medium is subsequently discharged from a cylindrical mold (3) and an aggregate (38) of the short fibers and the powdered resin that have accumulated in the cylindrical mold (3) is produced. The aggregate (38) is then compressed.
B29B 11/16 - Fabrication de préformes caractérisées par la structure ou la composition comprenant des charges ou des agents de renforcement
B29C 43/18 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
B29C 43/32 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
C08J 5/04 - Renforcement des composés macromoléculaires avec des matériaux fibreux en vrac ou en nappes
F16H 55/06 - Emploi de matériauxEmploi de traitements d'organes dentés ou de vis sans fin pour modifier les propriétés intrinsèques des matériaux
B29K 105/12 - Présentation, forme ou état de la matière moulée contenant des agents de renforcement, charges ou inserts de longueur réduite, p. ex. filaments coupés, fibres coupées ou crins
B29L 15/00 - Roues d'engrenages ou objets similaires comportant des creux ou des saillies, p. ex. boutons de réglage
3.
LITHIUM ION BATTERY AND MANUFACTURING METHOD THEREFOR
In a lithium ion battery of the present invention, a positive electrode mixture includes a first active substance made of olivine type lithium iron phosphate and having a first particle size as an average particle size, and a second active substance made of olivine type lithium iron phosphate and having as an average particle size a second particle size larger than the first particle size. The weight ratio of the first active substance to the second active substance is between 20:80 and 90:10.
H01M 4/136 - Électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p. ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de composés inorganiques autres que les oxydes ou les hydroxydes, p. ex. sulfures, séléniures, tellurures, halogénures ou LiCoFyEmploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p. ex. phosphates, silicates ou borates
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
4.
SECONDARY BATTERY COLLECTOR STRUCTURE AND METHOD FOR FORMING SECONDARY BATTERY COLLECTOR STRUCTURE
Provided is a secondary battery collector structure having a small electrical resistance and also provided is a method for forming the secondary battery collector structure. A stir welding portion is formed by friction stir welding so that a positive electrode collector tab layer (27) is not exposed to the surface. In the stir welding portion, a collector (11b) of a positive electrode terminal (11), the positive electrode collector tab layer (27), and a positive electrode presser plate (25) are welded together.
B23K 20/12 - Soudage non électrique par percussion ou par une autre forme de pression, avec ou sans chauffage, p. ex. revêtement ou placage la chaleur étant produite par frictionSoudage par friction
Provided is a highly safe lithium ion secondary battery. An electrode plate group is configured to have: a resin separator having a thickness of 15-50 μm; and a positive electrode plate and a negative electrode plate, which are laminated with the resin separator being interposed therebetween. Particles of a metal or a metal compound, which have particle diameters of 20 μm or more, are present between the resin separator and the positive electrode plate or the negative electrode plate. The volume (V1) of the particles of a metal or a metal compound and the void volume (V2) per 1 μm2 of the resin separator satisfy the following relational expression: V1/V2 < 2,250.
The present invention improves secondary battery safety and reliability whilst maintaining a sufficiently large current value during charging and discharging. The secondary battery of the present invention is provided with an electrode terminal (4), an electrode plate, current-collector plates (13) that are connected to the electrode plate, and pressing plates (15) that sandwich the current-collector plates (13) to attach to the electrode terminal (4). A through-bolt (18), which passes through a through hole (161), a through hole (162), and a through hole (16), is fastened with a nut (20), and a screw bolt (19), which passes through a through hole (171) and a through hole (172), is fastened with a screw hole (17) such that the pressing plates (15) sandwich the current-collector plates (13) and are attached to the electrode terminal (4), and the current-collector plates (13) are connected to the electrode terminal (4).
H01M 10/0585 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure plats, c.-à-d. des électrodes positives plates, des électrodes négatives plates et des séparateurs plats
Provided is an expanded grating fabrication device whereby bending or twisting in an expanded grating is eliminated between an expansion working process of a lead strip which is primarily constituted of lead and the punching of lobe parts thereof, and it is possible to convey the expanded grating in a flat state to the lobe part punch. An expanded grating fabrication device comprises: an expansion working means for expansion working a lead strip and forming a grating pattern thereupon; a lobe part punch means for forming lobe parts of the worked expanded grating by punching thereupon; a conveyance direction changing roll which is disposed part way through the conveyance path for the expanded grating from the expansion working means to the lobe part punch means; and a pair of vertically arranged flattening rolls which are disposed further downstream than this conveyance direction changing roll and pass the expanded grating. The conveyance direction changing roll further has either a maximum diameter in the axial central part of the roll, or a maximum diameter in locations which are intermediate locations from the axial central part toward both end parts and which are equidistant from the central part. The surfaces of the pair of vertically arranged flattening rolls are both made of a resin.
H01M 4/74 - Grillage ou matériau tisséMétal déployé
B21D 1/02 - Redressage, remise en forme ou élimination des distorsions locales des tôles ou d'objets déterminés faits à partir de tôlesÉtirage des feuilles métalliques combiné avec le laminage au moyen de rouleaux matriceurs
B21D 31/04 - Opérations pour dilater le matériau non prévues dans les groupes , p. ex. pour obtenir du métal déployé
8.
METHOD FOR MANUFACTURING ELECTRODE PLATE GROUP FOR LEAD-ACID BATTERY
Provide is a method for manufacturing an electrode plate group for a lead-acid battery capable of shortening the time required for melting pig lead to produce molten metal when forming a strap. The method for manufacturing an electrode plate group for a lead-acid battery is constituted by first to third processes. In the first process, unheated pig lead made of lead or a lead alloy is preliminarily heated up at a heating station (6) to a temperature at which the lead does not melt. In the second process, the preliminarily heated pig lead (7) is heated at a melting section (8) to a temperature at which the lead is melted to make a molten metal (9). The molten metal (9) is injected into a mold (10), and the cathode ear parts (4) or anode ear parts (5) of electrode plates of the same polarity are immersed in the molten metal (9) in the mold (10) to form a strap. The first process is then executed during the execution of the second process.
Provided is an electrode plate drying device that can sufficiently dry electrode plates without raising the temperature inside a drying furnace to a high temperature. The device is provided with: a moving device (3) that delivers electrode plates (5); and a drying machine (7) provided with a warm air blowing opening (7a). Warm air that is blown from the warm air blowing opening (7a) of the drying machine (7) is blown so as to follow along both surfaces of the electrode plates (5), which have been filled with a paste-like active material on a current collector, and the paste-like active material is dried. The moving device (3) moves either or both of the warm air blowing opening (7a) and the electrode plates (5), giving rise to relative displacement between the electrode plates (5) and the warm air blowing opening (7a) such that the electrode plates (5) approach the warm air blowing opening (7a) and move away from the warm air blowing opening (7a).
F26B 15/00 - Machines ou appareils à mouvement progressif pour le séchage d'objetsMachines ou appareils à mouvement progressif, pour le séchage de lots d'un matériau de forme compacte
H01M 4/20 - Procédés de fabrication d'électrodes empattées
Provided is a storage battery voltage leveling device capable of minimizing the variation in voltages among storage batteries in a power source system which has a plurality of lead storage batteries and is constantly connected to a device. The storage battery voltage leveling device according to a typical embodiment of the present invention comprises: temperature measurement units respectively connected in parallel with a part of the serially connected storage batteries to measure the temperature of the connected storage batteries; voltage measurement units for measuring the voltage of the storage batteries; and internal resistance measurement units for measuring the internal resistance of the storage batteries using at least two or more types of frequencies. When measuring the internal resistance of the storage batteries using the internal resistance measurement unit, the storage battery voltage leveling device decreases the voltage of the storage batteries by flowing an electric current through the storage batteries.
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
Provided is a secondary battery capable of restricting a change in position of an insulating member. The secondary battery comprises: one or more positive electrode tab channels (63) through which a plurality of positive electrode tabs (35a) pass; one or more negative electrode tab channels (65) through which a plurality of negative electrode tabs (37a) pass; and an insulating member (61) which prevents short-circuiting of a positive electrode terminal structure (11) and a negative electrode plate (37), and short-circuiting of a negative electrode terminal structure (13) and a positive electrode plate (35). A positive electrode tab bundle (36) which passes through the one or more positive electrode tab channels (63) is deformed in order to generate a force which presses the insulating member (61) towards an electrode plate group (3), and a negative electrode tab bundle (38) which passes through the one or more negative electrode tab channels (65) is deformed in order to generate a force which presses the insulating member (61) towards an electrode plate group (3).
Provided is a secondary battery in which short-circuiting of a battery container and a nut or a bolt of a fastening structure does not occur, even if the nut or the bolt are loosened. The dimensions of a gap between at least one of either a head part (29a) of the bolt (29) or the nut (128B) of the fastening structure, and an inner wall surface of the battery container (5) are set so as to be capable of preventing the bolt (29) and the nut (128B) from detaching. An electrical insulating material (30) which prevents a wall surface section of the inner wall surface of the battery container (5) from making contact with the head part (29a) of the bolt (29) or the nut (128B) is fixed to the wall surface section which faces at least one of either the bolt head part (29a) or the nut (128B) with the gap therebetween, or is fixed to at least one of either the bolt head part (29a) or the nut (128B) which faces the wall surface section in question.
F16B 41/00 - Dispositions contre la perte des boulons, écrous, broches ou goupillesDispositions empêchant toute action non autorisée sur les boulons, écrous, broches ou goupilles
Provided are a method and a charging device for refresh charging of an assembled battery comprising a lead battery, by which the required charge amount can be obtained while reducing the charging time. In a fixed-voltage charging mode, n (n being an integer 1 or greater) gradually smaller intermediate thresholds S1-Sn are set between a prescribed threshold S0 and a minimum current value, and when charging current reaches the n intermediate thresholds S1-Sn, further n auxiliary timer times T1-Tn are set, for which the count is started. A maximum timer time Tm and the n auxiliary timer times T1-Tn are set so as to fulfill the relationship Tm>T1…>Tn, and if either of the counts of the maximum timer time Tm and the n auxiliary timer times T1-Tn are completed before the minimum current value is detected, charging is stopped.
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
H02J 7/04 - Régulation du courant ou de la tension de charge
14.
SECONDARY BATTERY COLLECTOR STRUCTURE AND SECONDARY BATTERY
Provided is a collector structure whereby, even if the number of electrode sheets which are stacked increases for greater capacity in a secondary battery, the space for installation of a collector plate does not increase more than necessary. Fixed parts (43a-43j) and welded parts (45a-45j) are configured by bending, at curve parts (47a-47j), positive electrode collector plates (41a-41j) which configure a positive electrode collector plate stack part (27). The angles of the curve parts (47a-47e) are 80°, 90°, 100°, 110°, and 120°, respectively. The angles of the curve parts (47f-47j) are 120°, 110°, 100°, 90°, and 80°, respectively. The negative electrode collector plates are bent in a similar manner.
Provided is a secondary battery whereby, even if the number of electrode plates housed therein increases, the resistance contact does not grow large. Two screw holes (11d) are formed in a face (11c) of a terminal main body part (11b) of a positive electrode terminal (11), said face (11c) being in opposition in a stacking direction. Between the two screw holes (11d), a protrusion face (11e) is disposed which protrudes further toward a positive electrode-side pressing member (25) than portions whereupon the screw holes (11d) are disposed. The protrusion face (11e) is made to protrude 0.2mm further toward the positive electrode-side pressing member (25) than the portions whereupon the two screw holes (11d) are disposed.
A thin film is used on a metal current collector to increase volume energy density, but the strength of the film is low, and when the negative electrode plate or the positive electrode plate is bonded directly to a terminal base part, there is a danger of breakage or other damage to the metal current collector due to this small load. Even if a structure is used in which the metal current collector is bonded to a plate-shaped metal with high conductivity, or a plate-shaped resin with high conductivity, and the collector plate is bonded to the terminal base part or the like, the connection between the collector plate and the terminal base part affects cell properties. The present invention achieves a secondary cell in which a metal current collector having a negative-electrode active substance layer formed on the front surface, a separator for holding an electrolyte, and another metal current collector having a positive-electrode active substance layer formed on the front surface have an electrode group positioned layered alternately in a reed shape such that the separator is interposed between the two types of metal current collectors, a predetermined number of electrode-plate tabs formed at the ends of the two types of metal current collectors each being bonded to the collector plates, the collector plates being bonded to the terminal base part having a bolt through-hole by the mating of a press plate, a bolt and a nut.
The present invention provides a current collection structure of a secondary cell in which contact failure between a current collection tab and the terminal can be prevented while reducing the contact resistance with respect to the terminal. A tab laminate (7), obtained by laminating a plurality of current collection tabs (5) extending from an electrode plate group (3) and a current collector (9b) of the terminal (9), and a cover member (13) for sandwiching, with the current collector (9b), the tab laminate (7), are joined by friction stir welding. A tab storage part (15), which is provided with a structure for storing at least a part of the tab laminate (7) and preventing the current collection tabs (5) in the tab laminate (7) from sliding during friction stir welding, is formed on the current collector (9b) and/or the cover member (13).
H01M 10/0585 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure plats, c.-à-d. des électrodes positives plates, des électrodes négatives plates et des séparateurs plats
18.
METHOD FOR PRODUCING SEMI-PROCESSED PRODUCT FOR MOLDING ROTATING RESIN-BODY, METHOD FOR PRODUCING ROTATING RESIN-BODY, AND HEATING AND PRESSURIZATION DEVICE
The present invention enables production of a highly reliable rotating resin-body by which a resin molded body can be formed with a simple process, an overlay interface of a base material is not created, and joining strength between the resin molded body and a turning-stopper section provided to an outer peripheral section of a bush made of metal is enhanced. The present invention comprises a first step for aggregating short fiber and a powdered resin on the perimeter of an outer peripheral section of a bush (2) by filtering and dewatering and thereby forming an aggregate (8) of the short fiber and the powdered resin surrounding the outer peripheral section of the bush (2), and a second step for compressing the aggregate (8) of the short fiber and the powdered resin in the axial direction of a rotating shaft to form a molding material (5). Then, the molding material is heated and pressurized to form a resin molded body.
B29B 11/16 - Fabrication de préformes caractérisées par la structure ou la composition comprenant des charges ou des agents de renforcement
B29C 43/18 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
B29C 43/32 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
C08J 5/04 - Renforcement des composés macromoléculaires avec des matériaux fibreux en vrac ou en nappes
F16H 55/06 - Emploi de matériauxEmploi de traitements d'organes dentés ou de vis sans fin pour modifier les propriétés intrinsèques des matériaux
B29K 105/12 - Présentation, forme ou état de la matière moulée contenant des agents de renforcement, charges ou inserts de longueur réduite, p. ex. filaments coupés, fibres coupées ou crins
B29L 15/00 - Roues d'engrenages ou objets similaires comportant des creux ou des saillies, p. ex. boutons de réglage
19.
SECONDARY BATTERY, SECONDARY BATTERY MODULE HAVING BUILT-IN SECONDARY BATTERY, AND ASSEMBLED BATTERY SYSTEM HAVING BUILT-IN SECONDARY BATTERY MODULE
Thermal conduction in the stacking direction of battery cells is small compared with thermal conduction in the electrode plane direction of the battery cells, which is orthogonal to the stacking direction, resulting in a non-uniform temperature distribution in the stacking direction of the battery cells. The non-uniform temperature distribution inside the stacked battery cells degrades the charging and discharging performance of the battery cells because a battery cell portion exposed to a high temperature and another battery cell portion exposed to a low temperature have different degrees of degradation associated with the charging or discharging of the battery cells. A heat absorbing means equipped with a heat absorbing function is disposed on a plane in the direction orthogonal to the stacking direction toward which the battery cells are stacked (in other words, on a plane parallel with the stacking direction), and the battery cells and the heat absorbing means are thermally connected with each other. Since the heat absorbing means and each of the battery cells are thermally connected with each other under the substantially same condition, heat generated at each of the battery cells is absorbed by the heat absorbing means at an approximately same rate, so that it is possible to prevent the temperature distribution of each of the battery cells from becoming non-uniform.
Provided is a lithium ion battery which has achieved improved safety without deteriorating the capacity characteristics and service life characteristics. An electrode group (7) is configured by arranging a positive electrode plate (1) that contains a positive electrode active material and a negative electrode plate (3) that contains a negative electrode active material, with a separator (5) being interposed therebetween. The electrode group (7) is wound around an axial core (9) and contained in a battery can (11). A flameproofing agent is contained in or coated over the axial core (9) and/or the battery can (11).
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
Provided is a lithium secondary cell in which the charge/discharge cycle characteristics and storage characteristics do not readily deteriorate, even under extreme usage conditions. There is configured a lithium secondary cell provided with: a positive electrode plate containing, as the positive electrode active material, a lithium-containing transition metal complex oxide; a negative electrode plate containing, as the negative electrode active material, a material in which oxidation and reduction or insertion and separation of lithium is possible; a separator positioned between the positive electrode plate and the negative electrode plate; and a non-aqueous electrolyte solution in which a lithium salt is dissolved. The non-aqueous electrolyte solution contains at least one type of cyclic ether selected from a thiacrown ether and an azacrown ether in which hydrogen bonded to a nitrogen atom is not substituted with another group.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
22.
LITHIUM ION SECONDARY BATTERY USING IONIC LIQUID, LITHIUM ION SECONDARY BATTERY MODULE, AND HEAT RETENTION DEVICE FOR LITHIUM ION SECONDARY BATTERY USING IONIC LIQUID OR FOR LITHIUM ION SECONDARY BATTERY MODULE
Provided are: a lithium ion secondary battery which uses an ionic liquid that is capable of achieving high output power; and a lithium ion secondary battery module. A cylindrical lithium ion secondary battery which is increased in heat insulation properties by having the main part of a cylindrical lithium ion secondary battery main body (1) contained in a cylindrical vacuum heat insulation container (3) that is formed of a stainless steel heat insulation material.
Provided is an electrode plate for a rectangular nonaqueous electrolyte storage cell that is easily processed and is capable of preventing shorting inside a container. A first curved section (21) and a second curved section (23) are formed in at least a first corner section (11) and a second corner section (13) of an electrode plate (1) for a rectangular nonaqueous electrolyte storage cell provided with a first side (3), a second side (5), a third side (7) and a fourth side (9). The first curved section (21) is formed so as to form an acute angle (θ11) between the first side (3) and a first extension (3') of a tangent (22A) of the first curved section (21) at the tangent point (21A) of the first curved section (21). The first curved section (21) is also formed so as to form an acute angle (θ12) between the second side (5) and a second extension (5') of a tangent (22B) of the first curved section (21) at the tangent point (21B) of the first curved section. The second curved section (23) is formed in the same manner.
With the present invention, in the manufacture of a lead alloy sheet for an expanded grid wherein a lead alloy foil having an alloy composition different from a base material sheet comprising a lead alloy is overlaid on the base material sheet and a process is performed multiple times whereby these are rolled by passing through a gap between a pair of mill rolls, thereby integrating a lead alloy sheet with the base material sheet, multiple through-holes that penetrate the lead alloy foil in the thickness direction are dispersed in a front-end region that is set near the front end of the lead alloy foil, and with the front-end region of the lead alloy foil in which the through-holes have been dispersed overlaid on the front-end part of the base material sheet, the base material sheet and the lead alloy foil are supplied between mill rolls for performing the initial rolling. Thus, the base material sheet and the lead alloy foil can be integrated reliably without setting a particularly large reduction ratio in the initially performed rolling process.
The present invention relates to a lithium-ion battery having a discharge capacity of 30 Ah or more but less than 100 Ah, and comprising in a battery container, an electrolyte and an electrode winding group obtained by winding a positive electrode, a negative electrode, and a separator. When the battery capacity of a lithium-ion battery is increased, the energy stored in the battery increases; therefore, ensuring safety under non-steady conditions is a problem. For example, it may not be possible to ensure safety when securing battery capacity by simply enlarging a 18650-type lithium-ion battery, and a comprehensive study including the constituent materials of the battery such as the positive electrode, the negative electrode, and the separator was needed. The present invention provides a high-capacity battery with high input and output while ensuring safety by configuring a lithium-ion battery with a discharge capacity of 30 Ah or more but less than 100 Ah, so that the positive electrode mixture of the positive electrode, the negative electrode mixture of the negative electrode, and the electrolyte meet predetermined conditions.
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 10/0568 - Matériaux liquides caracterisés par les solutés
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
Provided is a high-capacity battery that has high input and output while ensuring safety. This lithium-ion battery has a discharge capacity of at least 30 Ah and comprises, in a battery container, an electrolyte and an electrode winding group obtained by winding a positive electrode, a negative electrode, and a separator. The positive electrode includes a current collector and a positive electrode mixture that is applied to both surfaces of the current collector, and the positive electrode mixture has the following composition. The positive electrode mixture includes a mixed active material of a layered lithium-nickel-manganese-cobalt composite oxide (NMC) and a spinel-type lithium-manganese oxide (sp-Mn), the density of the positive electrode mixture is 2.4-2.7g/cm3, and the application amount of the positive electrode mixture is 175-250g/m2. Furthermore, the weight ratio (NMC/sp-Mn) of the mixed active material is 10/90-60/40. Additionally, the relationship Y < -0.0062X + 1.05(30 ≤ X < 100) is satisfied, where X is the discharge capacity and Y is the weight ratio.
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
Provided is a high-capacity battery that has a high input and output while ensuring safety. This lithium-ion battery has a discharge capacity of at least 30 Ah and comprises, in a battery container, an electrolyte and an electrode winding group obtained by winding a positive electrode, a negative electrode, and a separator. The positive electrode mixture of the positive electrode and the negative electrode mixture of the negative electrode have the following compositions. The positive electrode mixture includes a mixed active material of a layered lithium-nickel-manganese-cobalt composite oxide (NMC) and a spinel-type lithium-manganese oxide (sp-Mn), the density of the positive electrode mixture is 2.4-2.7 g/cm3, the application amount of the positive electrode mixture is 175-250 g/m2, and the weight ratio (NMC/sp-Mn) is 10/90-60/40. The density of the negative electrode mixture is 0.8-1.05 g/cm3 and the application amount of the negative electrode mixture is 50-100 g/m2. Additionally, the porosity of the negative electrode mixture is 32-46%.
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 10/0568 - Matériaux liquides caracterisés par les solutés
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
Because of irregularities in the flatness of electrodes due to increases in electrode surface area, variations in inter-electrode distances for positive electrodes and negative electrodes that are stacked with separators therebetween arise easily. Therefore, there is the problem of variations in discharge characteristics for batteries arising easily. One purpose of the present invention is to reduce the variations in discharge characteristics that accompany increases in size of batteries. This nonaqueous electrolyte secondary battery has a structure which is provided with an electrode laminate group which is accommodated in a square battery container and supported or affixed within the battery container, said electrode laminate group being formed such that positive electrodes and negative electrodes are stacked with band shaped separators therebetween through which lithium ions can pass, said positive electrodes being formed by coating positive electrode current collectors with a positive electrode active material that can release and store lithium ions upon charging and discharging, and said negative electrodes being formed by coating negative electrode current collectors with a negative electrode active material that can store and release lithium ions upon charging and discharging. The constitution is such that either or both of the positive electrode and negative electrode includes a powdered resin and a binder, the powdered resin is formed from the same resin material as the separators, and the positive electrodes, negative electrodes, and separators are fixed.
A lithium-ion battery is equipped with a cleavage valve for discharging gas in response to the increase of internal pressure and has a discharging capacity (X) of 30 Ah or more and less than 100 Ah. In the lithium-ion battery, a positive electrode mixture contains a mixed active material consisting of a layered lithium-nickel-manganese-cobalt composite oxide (NMC) and a spinel lithium manganese oxide (sp-Mn). The positive electrode mixture has a density of 2.4 to 2.7 g/cm3 and an application amount of 175 to 250 g/m2, and, if the ratio by weight (NMC/sp-Mn) is denoted by Y, satisfies the relation Y < -0.0062X + 1.05. The cleavage valve working pressure is 1.0 to 5.0 MPa when the discharging capacity (X) is 30 Ah to 40 Ah, inclusive, 1.0 to 4.0 MPa when the discharging capacity (X) exceeds 40 Ah and is 80 Ah or less, and 1.0 to 3.0 MPa when the discharging capacity (X) exceeds 80 Ah and is less than 100 Ah.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 2/12 - Events ou autres aménagements mécaniques pour faciliter l'échappement des gaz
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
Provided is a high input/output and high capacity battery while securing safety. A lithium-ion battery includes, in a battery container, an electrolyte and an electrode winding group formed by winding a positive electrode, a negative electrode, and a separator and has a discharging capacity of 30 Ah or more. In the lithium-ion battery, the positive electrode has a collector and a positive electrode mixture applied on both surfaces of the collector, and the positive electrode mixture is made as follows. The positive electrode mixture contains a mixed active material consisting of a layered lithium-nickel-manganese-cobalt composite oxide (NMC) and a spinel lithium manganese oxide (sp-Mn) and has a density of 2.4 to 2.7 g/cm3, inclusive, and a porosity of 29.5 to 40.0%, inclusive. In addition, the ratio by weight (NMC/sp-Mn) of the mixed active material is set to 10/90 to 60/40, inclusive.
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
A lithium ion cell having a discharge capacity of 30 Ah to 125 Ah, in which an electrolytic solution and an electrode winding group in which a positive electrode, a negative electrode, and a separator are wound are provided in a cell container, wherein a positive electrode mix for a positive electrode having a collector and a positive electrode mix that is applied on both sides of the collector has the following composition. The positive electrode mix includes a mixed active material of a laminar lithium/nickel/manganese/cobalt complex oxide (NMC) and an olivine-type lithium iron phosphate (LFP), the density of the positive electrode mix being 2.0 g/cm3 to 2.6 g/cm3, and the amount of the positive electrode mix applied being 100 g/m2 to 200 g/m2. The weight ratio (NMC/LFP) of the mixed active material is 10/90 to 60/40. Alternatively, the relationship Y < -0.0067X + 1.84 (30 ≤ X ≤ 125) is satisfied, where X is the discharge capacity and Y is the abovementioned weight ratio.
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/1391 - Procédés de fabrication d'électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/1397 - Procédés de fabrication d’électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p. ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
H01M 4/485 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'oxydes ou d'hydroxydes mixtes pour insérer ou intercaler des métaux légers, p. ex. LiTi2O4 ou LiTi2OxFy
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
Provided is an electrochemical cell module, which can be used in a state wherein a plurality of electrochemical cells are combined using holders. An electrochemical cell module (1) is configured by holding, by means of a pair of cell holders (5, 7), the ends of six cylindrical electrochemical cells (lithium ion battery cells (3)) disposed in parallel by being electrically connected to each other, said ends being on both the sides of each of the cylindrical electrochemical cells. On the outer side of one cell holder (5) of the pair of cell holders (5, 7), a control circuit holder (9) is mounted, said control circuit holder housing a control circuit (41) that controls voltages of the six lithium ion battery cells (3).
H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
H01G 2/04 - Dispositifs de montage spécialement adaptés pour le montage sur un châssis
H01G 9/26 - Combinaisons structurales de condensateurs électrolytiques, de redresseurs électrolytiques, de détecteurs électrolytiques, de dispositifs de commutation électrolytiques, de dispositifs électrolytiques photosensibles ou sensibles à la température les uns avec les autres
H01G 11/10 - Condensateurs hybrides ou condensateurs EDL multiples, p. ex. réseaux ou modules
H01M 2/34 - Connexions conductrices du courant pour les éléments avec des moyens pour empêcher un usage ou une décharge indésirables
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
33.
POSITIVE ELECTRODE PLATE FOR LEAD ACID BATTERY, METHOD FOR PRODUCING SAID ELECTRODE PLATE, AND LEAD ACID BATTERY USING SAID POSITIVE ELECTRODE PLATE
Provided are: a positive electrode plate for a lead acid battery, which contributes to the maintenance of a high capacity of a lead acid battery from the beginning and also contributes to the prolongation of the service life of a lead acid battery; and a lead acid battery using the positive electrode plate. A positive electrode plate produced by filling an active material in a grid body, wherein the active material has the following physical property value: the time required for the penetration of 100 ml of water through a block of the active material which has a thickness of 5 mm and a surface area of 25 mm2 is 1 to 10 minutes when water is allowed to pass through a layer of the charged active material from one surface side of the layer toward the other surface side of the layer at a pressure difference of 0.05 MPa. The positive electrode grid body is made from a lead alloy having a Ca content of 0.05 to 0.11 mass% and an Sn content of 1.1 to 1.8 mass%. Preferably, the positive electrode grid body is made from a lead alloy containing 0.005 to 0.05 mass% of Ag. More preferably, the positive electrode active material is prepared from a lead powder containing tetrabasic lead sulfate.
H01M 4/14 - Électrodes pour accumulateurs au plomb
H01M 4/57 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de plomb de "plomb gris", c.-à-d. de poudres à base de plomb et d'oxyde de plomb
H01M 4/68 - Emploi de matériaux spécifiés pour utilisation dans les accumulateurs au plomb
In an electricity storage system in which a capacitor and a lead-acid storage battery are charged at the same time, the capacitor is fully charged before the lead-acid storage battery is fully charged and the charging is terminated. Therefore, when the voltage of the capacitor decreases, it is impossible to supply power to an electric motor because the lead-acid storage battery is not fully charged. According to the present invention, in an electricity storage system in which a capacitor and a lead-acid storage battery are charged at the same time, when charging the electricity storage system, it is detected that the lead-acid storage battery is fully charged, after which the charging of the capacitor is initiated, so that the charging is terminated when the lead-acid storage battery is reliably fully charged.
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
H01G 9/28 - Combinaisons structurales de condensateurs électrolytiques, de redresseurs électrolytiques, de détecteurs électrolytiques, de dispositifs de commutation électrolytiques, avec d'autres composants électriques non couverts par la présente sous-classe
H01G 11/00 - Condensateurs hybrides, c.-à-d. ayant des électrodes positive et négative différentesCondensateurs électriques à double couche [EDL]Procédés de fabrication desdits condensateurs ou de leurs composants
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
If a non-aqueous electrolyte secondary battery has a seal structure between a lid and an electrode terminal in which a seal member is compressed by fastening a nut, the nut may be loosened to make the amount of compression of the seal member insufficient to reduce the seal performance even if the nut is fastened enough to obtain an appropriate amount of compression of the seal member at the time of manufacture of the battery. A battery case has an opening, and houses an electrode group and an organic electrolyte. A lid is fastened to the battery case, and tightly seals the opening of the battery case. An electrode terminal is electrically connected to the electrode group. The lid and the electrode terminal face each other via an elastic member.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
There has been a possibility of not obtaining an accurate state of charge (SOC) value in systems, such as wind power generation systems, that convert natural energy into power, due to the fact that power that the systems generate significantly fluctuates in a short time. In the present invention, an accurate state of charge (SOC) value can be measured, since a fixed state of a current can be ensured during a period of time required for measurement by having a current flowing into a storage battery block in a constant current state.
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
37.
ELECTRODE GROUP FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY
Provided are an electrode group for a non-aqueous electrolyte battery and a non-aqueous electrolyte battery, wherein it is possible to easily secure a positive electrode plate to a separator. A positive electrode plate (31) is secured to a first separator (51) by means of a securing insulating tape (55) formed from a polyimide film and exhibiting insulating properties. The securing insulating tape (55) has approximately the same length as the side (51d) of the first separator (51) which extends along a battery lid (9). Moreover, the width of the securing insulating tape (55) is the same length as the length in which a second positive-electrode-active-material-layer non-formation part (33h) extends from the bottom of a battery can (7) toward the battery lid (9). The securing insulating tape (55) is applied so as to straddle a section in the vicinity of the sides (52e, 52f) of the second surface (51b) of the first separator (51) and the entire second positive-electrode-active-material-layer non-formation part (33h) of the positive electrode plate (31).
H01M 10/0585 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure plats, c.-à-d. des électrodes positives plates, des électrodes négatives plates et des séparateurs plats
H01M 2/34 - Connexions conductrices du courant pour les éléments avec des moyens pour empêcher un usage ou une décharge indésirables
Provided is a power storage module which stores a control substrate and a power storage element within a case and which can be easily produced. A substrate holder (123) holds a control substrate (121) while separating same from a power storage element assembly (118). The substrate holder (123) for holding the control substrate (121) is used as a connection member for connecting two power storage element units (115, 117).
Provided is a capacitor module which does not consume power when the load on which the capacitor module is mounted is in a stand-by state in which the load is not running. A power source circuit (21) for controlling is in a conductive state while receiving a power-supply signal indicating that the load-side power source circuit (11) of a motor (15) which uses a capacitor module (1) as the power source is being supplied with power, and a power source switch circuit (29) electrically connects a capacitor unit (5) with the power source circuit (21) for controlling. When a power source switch (9) is turned on, power is not only supplied to the motor (15) from the capacitor unit (5) but is also supplied to a control substrate (7), and a control circuit (19) goes into an operation state. When the power source switch (9) is turned off, power is no longer supplied to the control substrate (7) and the control circuit (19) goes into a non-operation state. Therefore, it is possible to inhibit the consumption of power by the capacitor module (1) when a device (3) is in a non-operating stand-by state.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
40.
POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY USING SAME
Provided is a positive electrode for lithium ion secondary batteries, which has excellent metal ion adsorbability and excellent metal ion selectivity. A positive electrode for lithium ion secondary batteries of the present invention is provided with an aluminum silicate salt, which has an element molar ratio of Si to Al, namely Si/Al of 0.3 or more but less than 1.0, on the surface.
Provided is a liquid lead storage battery which achieves a good balance between high-temperature corrosion resistance and service life characteristics improvement in PSOC and exhibits satisfactory service life performance in a harsher environment. A positive electrode plate uses a positive electrode active material that has a total positive electrode active material surface area within the range of 3.5-15.6 m2/cm3 per unit area of the electrode plate group, and a negative electrode plate uses a negative electrode active material to which a carbonaceous conductive material and an organic compound that suppresses coarsening of the negative electrode active material are added. In addition, a collector that is formed of a lead alloy, which contains 0.01-0.1% by mass of calcium, 0.05-2% by mass of tin and 0.05-0.15% by mass of bismuth, and additionally silver or indium, is used as a positive electrode collector. Preferably, silver is contained in an amount of 0.005-2% by mass and indium is contained in an amount of 0.01-0.5% by mass.
Provided is a battery-state monitoring system capable of efficiently and highly accurately estimating the battery state and life of each of a plurality of batteries always connected to a device, by automatically measuring or obtaining various parameters. A battery-state monitoring system (1) for monitoring the state of each battery (41) in a device provided with a battery pack in which a plurality of batteries (41) are connected in series, the battery-state monitoring system (1) having: a control/power supply device (50) for detecting the current in each battery (41); and extension devices (30) for measuring the temperature and voltage in each battery (41), and the internal resistance of at least two types of frequencies of each battery (41). Therein, the deterioration of each battery (41) is estimated on the basis of one or more values selected from among the temperature, voltage and internal resistance measured by the extension devices (30), and the DC resistance of each battery (41) obtained from the ratio of the amount of change in the value of the current detected by the control/power supply device (50) when each battery (41) discharges, to the amount of change in the value of the voltage measured by the extension devices (30).
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
A battery-state monitoring system capable of efficiently and highly accurately estimating the battery state and life of each battery, while suppressing voltage variation between batteries, in a large-scale power supply system having a plurality of batteries filled with power generated using renewable energy. The battery-state monitoring system has: a control/power supply device (50) for detecting the current of each battery (41); extension devices (30) for measuring the temperature and voltage in each battery (41), and the internal resistance of at least two types of frequencies of each battery (41); and a host monitoring device (10) for obtaining measurement data corresponding to each battery (41) from the extension devices (30), and issuing a command pertaining to the operation of the control/power supply device (50) and the extension devices (30). Therein, the host monitoring device (10) estimates the deterioration of each battery (41), on the basis of one or more values selected from among the temperature, voltage and internal resistance measured by the extension devices (30), and the DC resistance of each battery (41), and lowers the voltage of the batteries having a voltage higher than a prescribed value, by transmitting a constant current from the state measurement device.
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
The present invention addresses the problem of providing a nonaqueous electrolyte secondary battery which is safer and has high capacity, while achieving a good balance between discharge characteristics and service life characteristics at a high level. This problem is solved by a nonaqueous electrolyte secondary battery wherein: a positive electrode plate, which is obtained by forming a positive electrode mixture layer containing a mixed active material of a layered lithium complex oxide and a spinel lithium-manganese oxide on a collector, and a negative electrode plate, which is obtained by forming a negative electrode mixture layer containing an active material and a carbon-containing material on a collector, are arranged with a porous separator interposed therebetween; an electrolyte solution contains cyclohexyl benzene or a derivative thereof; the positive electrode mixture layer has a mixture density of 2.30-2.75 g/cm3; and the positive electrode mixture layer has a porosity of 34-46%.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
The present invention addresses the problem of providing: a nonaqueous electrolyte battery which has high input/output and excellent cycle characteristics; and a positive electrode. The problem is solved by a nonaqueous electrolyte battery which comprises a positive electrode that is obtained by forming a positive electrode active material layer on a positive electrode collector, a negative electrode and a nonaqueous electrolyte, said nonaqueous electrolyte battery containing, as the positive electrode active material, at least two kinds of positive electrode active materials, namely a first component that is a positive electrode active material represented by chemical formula of LiMn2-XM1YM2ZO4 (wherein each of M1 and M2 represents an element selected from among Ti, V, Cr, Fe, Co, Ni, Al, Ag, Mg and Li, and X representing a composition ratio satisfies 0 ≤ X < 2.0, Y + Z = X, 0 ≤ Y ≤ 1.9 and 0 ≤ Z ≤ 1.9) and a second component.
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
A battery-state monitoring system capable of efficiently and highly accurately estimating the battery state and life of each of a plurality of batteries always connected to a device, and filled with power generated using renewable energy. The battery-state monitoring system has: a control/power supply device (50) for detecting the current of each battery (41); extension devices (30) for measuring the temperature and voltage in each battery (41), and the internal resistance of at least two types of frequencies of each battery (41); and a host monitoring device (10) for obtaining measurement data corresponding to each battery (41) from the extension devices (30), and issuing a command pertaining to the operation of the control/power supply device (50) and the extension devices (30). Therein, the host monitoring device (10) estimates the deterioration of each battery (41) on the basis of one or more values selected from among the temperature, voltage and internal resistance measured by the extension devices (30), and the DC resistance of each battery (41) obtained from the ratio of the amount of change in the value of the current when each battery (41) discharges, to the amount of change in the value of the voltage measured by the extension devices (30).
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
Provided is a fluid-type lead storage battery wherein charging is performed intermittently for a short duration each time, and high-rate discharging to a load is performed in a partial state of charge, said lead storage battery improving the charge acceptance and the PSOC life characteristic relative to the prior art. A positive electrode plate is used that has a positive-electrode active substance total surface area per unit electrode plate group volume set in a range of between 3.5 and 15.6 m2/cm3. A negative electrode plate is used in which a carbonaceous conductive material and an organic compound that inhibits coarsening of a negative-electrode active substance accompanied by charging/discharging are added to the negative-electrode active substance. Moreover, compounds chosen from among cationic coagulant, cationic surfactant and phosphoric acid are added to an electrolyte, improving the charge acceptance and the life performance.
The present invention is able to extend the life of a lead storage battery comprising a group of lead cells whilst preventing deterioration of the lead storage battery. A lead storage battery (151) or lead storage battery module (152) comprising a group of storage cells (101) includes individual battery state measuring units (102) for individually measuring current, voltage, temperature, etc., a state-of-charge model storage unit (103) for storing a state-of-charge model, a state-of-charge estimating unit (104) for estimating the individual states of charge for each storage battery (151) or lead storage battery module (152), a state-of-charge variation range determining unit (105) for calculating the maximum and minimum states of charge, and an equalised charge implementation management unit (109) for controlling the implementation of charge equalisation in the group of lead cells (101). The equalised charge implementation management unit (109) implements charge equalisation so the highest state of charge is within a range lower than the overcharge region, and the lowest state of charge is within a range higher than the sulfation region.
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
H02J 7/04 - Régulation du courant ou de la tension de charge
49.
SEPARATOR FOR NONAQUEOUS ELECTROLYTE BATTERIES, AND NONAQUEOUS ELECTROLYTE BATTERY
Provided is a separator for nonaqueous electrolyte batteries, which is capable of flameproofing a battery and is also capable of suppressing decrease of the battery performance. A porous surface-side protective layer (47) is formed on a surface (45A) of a porous base (45) that is formed of a polyolefin resin, said porous surface-side protective layer (47) protecting the porous base (45) so that the porous base (45) is not thermally deformed or thermally shrunk. A porous surface-side flameproofing agent layer (49) is formed on the surface-side protective layer (47), said porous surface-side flameproofing agent layer (49) containing a solid flameproofing agent that has a melting point lower than the ignition temperature of the nonaqueous electrolyte solution.
Provided is a lithium ion battery having good high-rate discharge properties and high safety. A slurry prepared by mixing a solid flame-retardant agent with a solvent together with a positive electrode active material and so on is applied on a front surface and/or a rear surface of a positive electrode current collector to form a coating layer, and the coating layer is then dried under such drying conditions that precipitates can be settled toward the positive electrode current collector while keeping the coating layer at a position above the positive electrode current collector. With respect to the drying conditions, the drying temperature and the drying time are defined so that the flame-retardant agent that is precipitated within the drying time can be settled.
Provided is a nonaqueous electrolyte battery which is not significantly decreased in the battery performance even if a flameproofing agent layer is formed therein. As a positive electrode plate of a nonaqueous electrolyte battery, a positive electrode plate (3) is configured by forming a positive electrode active material layer on the front surface and/or the back surface of a positive electrode collector and by forming a flameproofing agent layer, which contains a cyclic phosphazene compound bound by a polyvinylidene fluoride, on the surface of the positive electrode active material layer. The content of the cyclic phosphazene compound is set to 3.5-7.5% by weight relative to the weight of the positive electrode active material layer, and the content of the polyvinylidene fluoride is set to 15-25% by weight relative to the weight of the cyclic phosphazene compound.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
Provided is a nonaqueous electrolytic solution battery in which safety at the time of battery abnormality can be ensured and in which reduction in capacity at the time of high-rate discharge can be suppressed. In this lithium-ion secondary battery (20), an electrode group (6) is housed in a battery container (7). In the electrode group (6), a positive electrode plate and a negative electrode plate are wound with a separator (W5) therebetween. The positive electrode plate has an aluminum foil (W1) as a positive electrode charge collector. A positive electrode mixture layer (W2) containing a positive electrode active material is formed on both surfaces of the aluminum foil (W1). A flame retardant layer (W6) containing a flame retardant is formed on the surface of each positive electrode mixture layer (W2). The percentage of the flame retardant to the positive electrode mixture is set to 8 wt% or less. The negative electrode plate has a rolled copper foil (W3) as a negative electrode charge collector. A negative electrode mixture layer (W4) containing a negative electrode active material is formed on both surfaces of the rolled copper foil (W3). Thus, the transfer resistance of lithium ions is reduced at the time of high-rate discharge.
Provided is a method for producing a nonaqueous electrolytic solution battery in which high-rate discharge performance can be improved while ensuring safety. This lithium-ion secondary battery comprises an electrode group in which a positive electrode plate and a negative electrode plate are wound with a separator therebetween. The positive electrode plate is prepared by: a positive electrode mixture layer formation step of forming a positive electrode mixture layer by coating both surfaces of an aluminum foil with a positive electrode mixture, drying the positive electrode mixture, and then performing a first pressing process; and a flame retardant layer formation step of forming a flame retardant layer by coating the positive electrode mixture layer with a flame-retarding mixture containing a phosphazene compound, drying the flame-retarding mixture, and then performing a second pressing process. In the second pressing process, the second pressing pressure is set to one-third times or less with respect to the first pressing pressure in the flame retardant layer formation step. In the second pressing process, thickness adjustment is made while retaining the pores formed in the flame retardant layer as a result of the drying. Thus, ion mobility in the positive electrode plate is ensured.
H01M 4/13 - Électrodes pour accumulateurs à électrolyte non aqueux, p. ex. pour accumulateurs au lithiumLeurs procédés de fabrication
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
To clarify what sort of necessary condition based on the principles of cell reaction a charge-receiving performance is configured under, this performance being 1.5 times or more of a conventional lead storage cell, and to determine the necessary cell configuration on the basis of the clarified necessary condition. In a liquid lead storage cell in which charging is performed intermittently in short time intervals and high-rate discharge to the load is performed in a partially charged state, an electrochemical measurement system is configured by placing a reference electrode as a reference point of potential between a negative electrode panel and a positive electrode panel, the relationship between the negative electrode charging overvoltage and the positive electrode charging overvoltage and their corresponding charging currents is plotted to create a current-potential curve, and in an area where the current-potential curve is plotted resembling a straight line from a charging overvoltage of 0, the negative electrode active material of the negative electrode panel satisfies the relationship [negative electrode charging overvoltage/current] ≤ 9.4, and the positive electrode active material of the positive electrode panel satisfies the relationship [positive electrode charging overvoltage/current] ≤ 17.7.
Provided is a nonaqueous electrolytic solution battery in which safety at the time of battery abnormality can be ensured and in which high-rate discharge characteristics can be improved. This lithium-ion secondary battery (20) comprises a battery container (7). The battery container (7) houses an electrode group (6) in which a positive electrode plate (W1) and a negative electrode plate (W3) are wound with a separator (W5) therebetween. A nonaqueous electrolytic solution is introduced in the battery container (7). In the nonaqueous electrolytic solution, lithium tetrafluoroborate, which is a lithium salt, is dissolved in a mixed solvent prepared by mixing ethylene carbonate and dimethyl carbonate. A phosphazene-based flame retardant and a fluorine-substituted ether having an undetectable flash point are mixed to this nonaqueous electrolytic solution as flame retardants. The phosphazene-based flame retardant imparts flame retardancy or self-extinguishing properties to the nonaqueous electrolytic solution, and the fluorine-substituted ether reduces the viscosity of the nonaqueous electrolytic solution.
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
Provided is a nonaqueous electrolyte secondary cell with which high-performance discharge properties can be improved while guaranteeing safety. A lithium ion secondary cell has a stacked electrode group (10) sealed inside the laminated film of an outside casing. The stacked electrode group (10) is obtained by alternate stacking of positive pole plates (14) and negative pole plates (15). The positive pole plate (14) is obtained by forming, on both surfaces of an aluminum foil (W1), a positive electrode mix layer (W2) containing a lithium manganese compound oxide as the positive electrode active substance. In addition to the positive electrode active substance, a carbonaceous material as conductor and a phosphagen compound as a flame retarder are uniformly dispersed and mixed in the positive electrode mix layer (W2). The mass ratio of conductor with respect to the mass of flame retarder is adjusted to 1.3 or more. The negative pole plate (15) is obtained by forming, on both surfaces of rolled copper foil, a negative electrode mix layer containing a negative electrode active substance. Electron conductivity of the positive pole plate (14) is ensured by the conductor.
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
Provided is an expanded grid manufacturing device that eliminates waving and bending of an expanded grid until the grid reaches an ear-part punch-out means from an expansion means, which expands a sheet material primarily made of lead, in order to allow the grid to be conveyed in a flat state to the ear-part punch-out means. The expanded grid manufacturing device is provided with: an expansion means for expanding a lead or lead-alloy sheet; an ear-part punch-out means for creating, by means of punching, ear parts of an expanded grid that has been processed by the expansion means; a conveyance-direction changing roller that is provided midway on the expanded grid conveyance path between the expansion means and the ear-part punch-out means; and a pair of vertically-installed flattening rollers that are provided on the downstream side of the conveyance-direction changing roller and allow the expanded grid to pass therebetween. The conveyance-direction changing roller has the largest diameter at the center part in the axial direction of the roller. Alternatively, the conveyance-direction changing roller is configured such that an intermediate section formed between the axial center part and both ends of the roller has the largest diameter at positions equally distanced from the center part.
Provided is a nonaqueous electrolyte battery whereby an electrode assembly can be reliably surrounded by a cover member and the displacement of a pole plate in the electrode assembly and the entire electrode assembly can be prevented. A cover member (5) is configured with a bottom face component (51) covering an opposite area (37) opposite a tab arrangement area (35) of an electrode assembly (3), a pair of side face components (53) located between the tab arrangement area (35) and the opposite area (37), covering a pair of side face areas (38) facing the laminate direction of the electrode assembly (3), and a pair of end face components (55) located between the tab arrangement area (35) and the opposite area (37), covering a pair of end face areas (39) facing a direction orthogonal to the laminate direction of the electrode assembly (3). A pair of coupling pieces (52, 54) constituting at least a part of a coupling structure portion (57) for coupling the pair of side face components (53) above the tab arrangement area (35) is provided on an edge portion (53b) opposite an edge portion (53a) where the pair of side face components (53) is connected to the bottom face component (51).
Provided is an electrochemical cell module unit capable of electrically and mechanically connecting a plurality of electrochemical cell modules with a simple structure. In the electrochemical cell module unit (100), adjacent two electrochemical cell modules (1, 101) are disposed such that sidewall side openings (22E, 22) and bottom wall side openings (21E, 21F) are butted with each other, thereby forming one through-hole (41). The adjacent two electrochemical cell modules (1, 101) expose a terminal portion (18B) of a bus bar (18) and a terminal portion (17'B) of a bus bar (17') to the bottom wall side openings (21E, 21F) forming the through-hole (41). The two terminal portions (18B, 17'B) positioned in the through-hole (41) are then connected electrically and mechanically by bolting the two together.
H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
H01G 2/04 - Dispositifs de montage spécialement adaptés pour le montage sur un châssis
H01G 9/26 - Combinaisons structurales de condensateurs électrolytiques, de redresseurs électrolytiques, de détecteurs électrolytiques, de dispositifs de commutation électrolytiques, de dispositifs électrolytiques photosensibles ou sensibles à la température les uns avec les autres
H01M 2/20 - Connexions conductrices du courant pour les éléments
To prevent leakage of smoke generated within a battery, and to enable more safe use of the battery. A lithium ion secondary battery is obtained by having a battery can contain an electrode group, in which a positive electrode and a negative electrode are formed with a separator interposed therebetween, together with an electrolyte solution. The battery can is an airtight metal container that has a cover. The lithium ion secondary battery is provided with, within the battery can, a part that adsorbs and/or absorbs smoke or a gas component that is generated within the battery can.
Provided are an electrode plate group unit for a secondary battery, in which electrode plates and collector members can be reliably affixed and in which a large current can flow, and a method for manufacturing the same. Conductive members (35, 36) which, in addition to a current pathway passing through collector parts (16, 18) and terminal constituent parts (15, 17) of collector members (11, 13), form a separate current pathway in which the current from part of the collector parts (16, 18) to the terminal constituent parts (15, 17) flows are mechanically and electrically connected to the collector parts (16, 18) and the terminal constituent parts (15, 17).
The purpose of the present invention is to provide: a nonaqueous electrolyte solution which has flame retardancy, high electrical conductivity and excellent high-rate discharge characteristics; and a lithium ion secondary battery which uses the nonaqueous electrolyte solution. The nonaqueous electrolyte solution is characterized by containing a supporting salt and a nonaqueous solvent that contains at least a cyclic carbonate and a chain carbonate, and by additionally containing a phosphate ester such as trimethyl phosphate and a bisphosphonate ester. It is preferable that vinylene carbonate is additionally contained as a nonaqueous solvent.
In a fluid-type lead battery in which discharging to a load is carried out in a partially charged state, since the battery does not become fully charged in a PSOC, stratification of the electrolyte is minimized, thereby improving life performance, even if agitation of the electrolyte is made difficult by gas production. On each negative plate (1), a non-woven fabric (2) composed of fibers of at least one material selected from a group of materials comprising glass, pulp and polyolefins comes into contact with the entire surface of the plate without being integrated with the plate. Each negative plate (1), which is in contact with the non-woven fabric (2), is contained in a bag-like separator (3) comprising a microporous synthetic resin sheet, and is laminated with a positive plate (4). The non-woven fabric undergoes a sheet-making process in which glass fibers, pulp and silica powder are preferably used as the main components.
Provided are: a nonaqueous electrolyte solution which changes little over time from the initial battery characteristics; and a lithium ion battery. A mixed solution is prepared by dissolving a lithium salt such as LiPF6 in a nonaqueous solvent such as ethylene carbonate. This mixed solution is mixed with an allylboronic acid ester and a siloxane. The allylboronic acid ester content is set to 1% by weight or less, while the siloxane content is set to 2% by weight or less. As the allylboronic acid ester, 2-allyl-4,4,5,5-tetramethyl-1,3,2-dioxaborane is used. As the siloxane, at least one alkyl siloxane selected from among hexamethyl disiloxane and 1,3-divinyl tetramethyl disiloxane.
Provided is a wound secondary battery which is capable of sufficiently dissipating the heat generated in an electrode plate group to the outside of the battery at high temperatures, while preventing dissipation of the heat at low temperatures. An electrode plate group (3) is configured by winding a positive electrode plate (19) and a negative electrode plate (21), which are laminated with separators (15, 17) interposed therebetween, around an axial core (23) that is composed of a long metal inner core part (37) and an outer core part (39) that is provided outside the inner core part (37) and formed of an insulating material. The insulating material constituting the outer core part (39) has a heat conductivity of 1-20 W/mk.
The problem to be solved by the present invention is to provide an extended-life lithium ion secondary cell in which electrode resistance and irreversible capacity are reduced. In this lithium ion secondary cell, a non-aqueous electrolyte liquid, together with an electrode plate group of a positive electrode plate of a positive electrode mixture layer containing an active substance and formed over a current collector, and a negative electrode plate of a negative electrode mixture layer containing an active substance and a carbon based conductive material and formed over a current collector, disposed alternately with a separator therebetween, are housed in a case. Carbon nanotubes make up the carbon based conductive material.
The purpose of the present invention is to examine a novel core material for a lithium secondary cell and to provide a cell in which there is minimal variation from initial cell characteristics over time during long-term storage of the cell. In order to enhance the high-temperature storage characteristics of a lithium cell, a resin composed primarily of a cellulose-containing polypropylene is used as a winding core material.
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
Provided is a secondary battery enabling the inhibition of increases in battery temperature, and the regulation of the direction in which generated gas is discharged. The secondary battery has a pair of extensions (81, 82) extending from an electrode group (9) on an axial core (8). The axial core (8) has a hollow portion (85) provided with a pair of openings (83, 84), one on the end of each of the pair of extensions (81, 82) in the longitudinal direction thereof. The electrode group (9) is disposed in a battery container (2) in a state such that the openings (83, 84) at both ends of the axial core (8) each communicate with the exterior of the battery container (2). Grooves (86, 87), each constituting valves, are provided to the pair of extensions (81, 82) positioned in the battery container (2).
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
H01M 2/12 - Events ou autres aménagements mécaniques pour faciliter l'échappement des gaz
The present invention is a cylindrical lithium-ion secondary battery. This lithium-ion battery has a structure in which the value of B/A is optimized in the case where the distance between the pole to which reed strips are welded, the reed strips being formed intermittently in the winding direction (which is the lengthwise direction of the strip electrode) and the inner wall of the battery can is taken as A, and the distance between the pole and the wound electrode group is taken as B, in order to secure an exhaust passage of gas generated upon the occurrence of an abnormality in the battery.
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
In order to increase battery capacity and high-energy density, operation of a safety valve is definitively performed within the limited internal battery space of a large-capacity secondary battery having excellent safety for quickly discharging gas produced within the battery. The present invention is a high-capacity secondary battery with a battery capacity of 100Ah or greater and having a cleavage valve (10) formed in a manner such that the opening pressure thereof is a value between 0.2 and 1.5MPa. The region (safety valve region) in which the cleavage valve (10) is provided has the cleavage valve (10) configured in a manner such that each 1Ah of battery capacity has an area of 0.025-0.066cm2.
The present invention is a secondary battery in which a laminate is sealed in a battery can that has a floor, the laminate having the following positioned in an alternating manner in strips: a metallic current collector having a negative electrode active material layer formed on the surface thereof, a separator for holding electrolyte, and another metallic current collector having a positive electrode active material layer formed on the surface thereof. This secondary battery also contains at least one partition that divides the interior space of the battery can and faces the wide surface of the laminate between laminates of the plurality of laminates stored in the battery can.
H01M 10/0585 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure plats, c.-à-d. des électrodes positives plates, des électrodes négatives plates et des séparateurs plats
Non-aqueous electrolyte secondary batteries use an organic solvent as an electrolyte, and in an anomalous state, such as an internal short circuit or excess charge, gas is emitted within the batteries due to breakdown of the non-aqueous electrolyte, and pressure rapidly increases within the batteries. A non-aqueous electrolyte secondary battery according to the present invention comprises a cleavage valve (10) which cleaves at an internal pressure increase in order to avoid the battery casing breaking from the internal pressure increase. The cleavage valve (10) is configured from a valve body (11) and a ring member (12), and is installed in a through hole (3A) which is disposed in a cover plate (3). To avoid the cleavage valve (10) corroding, the through hole (3A) which is disposed in the cover plate (3) of the battery casing (1) is covered from within the battery casing with a corrosion avoidance foil (15) such that the cleavage valve (10) is covered.
Provided is a long-lived lead storage battery that increases initial charging acceptance performance and suppresses a decrease in charging acceptance performance across a long period of battery use. In the lead storage battery, which uses a paste anode plate produced by filling a lead-alloy collector with a paste anode active material having lead powder as a starting material, scaly graphite and a bisphenol/aminobenzenesulfonic acid condensate are caused to be contained in the anode active material. The scaly graphite has an average primary particle size of 10-220 µm inclusive and preferably 100-220 µm inclusive. The amount of scaly graphite contained for every 100 masses of the anode active material (spongy metallic lead) in a fully charged state preferably is 0.5-2.7 masses, and more preferably is 1.1-2.2 masses.
This lead storage battery has an electrode plate constituted by packing with active material a lattice plate provided with a frame part having a square outline shape and horizontal lattice ribs and vertical lattice ribs forming a lattice on the inside of the frame part. The horizontal lattice ribs comprise wide horizontal ribs having a thickness the same as the thickness of the frame part and narrow horizontal ribs with a width and thickness smaller than the wide horizontal ribs. The vertical lattice ribs comprise: wide vertical ribs that have a thickness smaller than the frame part thickness and having one end in the direction of the thickness disposed in the same plane as one end of the frame part in the direction of thickness; and narrow vertical ribs with a thickness and width smaller than the wide vertical ribs. The end surfaces on one end side of the narrow horizontal ribs and narrow vertical ribs in the direction of thickness are positioned more to the inside in the direction of thickness than the end surface of the frame part on the one end side in the direction of thickness, and the end surfaces on the other end side of the narrow horizontal ribs and the narrow vertical ribs in the direction of thickness are positioned more to the inside in the direction of thickness than the end surface on the other end side of the frame part in the direction of thickness.
Provided are an electrochemical cell module provided with a holder having a high level of general utility and a holder suitable for use with that electrochemical module. In a holder (5) are formed four end part mating depressions (28A - 28D) formed so as to be surrounded by a bottom wall part (21) and a peripheral wall part (22) for mating with the end parts of four lithium ion capacitors (13A - 13D). The four end part mating depressions (28A - 28D) are provided with spacer accommodating depressions (30A - 30D) that accommodate buffering spacers (29) which are disposed in a compressed state between bus bars (17 - 20) and the bottom wall part (21) in the bottom part of the depressions.
H01G 11/10 - Condensateurs hybrides ou condensateurs EDL multiples, p. ex. réseaux ou modules
H01G 11/76 - Bornes, p. ex. extensions des collecteurs de courant spécialement adaptées pour être intégrées dans des condensateurs hybrides ou EDL multiples ou empilés
H01G 11/82 - Fixation ou assemblage d’un élément capacitif dans un boîtier, p. ex. montage d’électrodes, de collecteurs de courant ou de bornes dans des récipients ou des encapsulations
H01G 2/04 - Dispositifs de montage spécialement adaptés pour le montage sur un châssis
H01G 9/00 - Condensateurs électrolytiques, redresseurs électrolytiques, détecteurs électrolytiques, dispositifs de commutation électrolytiques, dispositifs électrolytiques photosensibles ou sensibles à la températureProcédés pour leur fabrication
H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
H01M 2/20 - Connexions conductrices du courant pour les éléments
The present invention addresses the problem of increasing the life of a lithium-ion rechargeable battery. This lithium-ion rechargeable battery: is provided with a positive electrode having a positive electrode active material containing Mn, a negative electrode having a negative electrode active material containing graphite, and a non-aqueous electrolyte solution containing electrolytes; and is characterized in that LiBF4 and LiPF6 are allowed to coexist in the electrolyte solution. The quantity of LiPF6 contained in the electrolyte solution is preferably larger than the quantity of LiBF4. Further, an iodide salt is preferably blended in. This results in phosphorus and boron oxides being deposited on the positive electrode, and prevents the elution of the Mn contained in the positive electrode. The quantities of these electrolytes preferably decrease in order from phosphorus to boron to iodine.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 4/13 - Électrodes pour accumulateurs à électrolyte non aqueux, p. ex. pour accumulateurs au lithiumLeurs procédés de fabrication
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 10/0568 - Matériaux liquides caracterisés par les solutés
The purpose of the present invention is to improve the fire resistance of the electrolytes used in a lithium-ion battery, and to improve the life of the lithium-ion battery. For this lithium-ion battery, specific quantities of ethylene carbonate and dimethyl carbonate are used in a non-aqueous electrolyte solution, and trimethyl phosphate is added. Specifically, the non-aqueous electrolyte solution: has ethylene carbonate (EC) and dimethyl carbonate (DMC) at a ratio of not less than 60 vol%, and the volume ratio of DMC to the sum of EC and DMC is 0.3 to 0.6; and contains 3 to 5 wt% of trimethyl phosphate (TMP) with respect to the total weight of the non-aqueous solution. Such a non-aqueous solution has the effect of improving self-extinguishing properties, and improves the safety of the lithium-ion battery.
Provided is a valve-regulated lead storage battery which is intermittently charged, each charge being conducted for a short period, and which in a partial state of charge (PSOC) is discharged at a high rate to apply a voltage to a load. The battery shows higher charge acceptance and has better life characteristics under PSOC than conventional valve-regulated lead storage batteries. Use is made of a positive electrode plate in which the active material has a specific surface area of 5.5 m2/g or more. Use is made of a negative electrode plate in which the charge acceptance and life performance have been improved by adding a carbonaceous conductive material and a product of condensation of a bisphenol compound, aminobenzenesulfonic acid, and formaldehyde to a negative active material. The specific gravity of an electrolytic solution is set at 1.30-1.35. Thus, the valve-regulated lead storage battery is produced.
Provided are a bus bar, wherein a failure of connection to an electrode section is eliminated, and a structure for connecting the bus bar. A plurality of metal plates (1a-1c) are bonded to each other in a state wherein the metal plates (1a-1c) are stacked. In a portion (5) to be welded, bottomed holes (11, 12) for inserting a resistance welding electrode are formed, said holes opening in the noncontact surface (7) that is not in contact with the electrode section, extending toward the contact surface (9) that is in contact with the electrode section, and not opening in the contact surface (9).
H01R 11/01 - Éléments de connexion individuels assurant plusieurs emplacements de connexion espacés pour des organes conducteurs qui sont ou qui peuvent être interconnectés de cette façon, p. ex. pièces d'extrémité pour fils ou câbles supportées par le fil ou par le câble et possédant des moyens pour faciliter la connexion électrique avec quelqu'autre fil, borne, ou organe conducteur, répartiteurs caractérisés par la forme ou par la disposition de l'interconnexion entre leurs emplacements de connexion
H01R 4/58 - Connexions conductrices de l'électricité entre plusieurs organes conducteurs en contact direct, c.-à-d. se touchant l'un l'autreMoyens pour réaliser ou maintenir de tels contactsConnexions conductrices de l'électricité ayant plusieurs emplacements espacés de connexion pour les conducteurs et utilisant des organes de contact pénétrant dans l'isolation caractérisées par la forme ou le matériau des organes de contact
Even if a cover and electrode terminal sealing structure form a structure that compresses a sealing member by the tightening of nuts in a nonaqueous electrolyte secondary battery, and even if the nuts are tightened so as to obtain a suitable amount of compression on the sealing member when the battery is manufactured, there is a danger of the amount of compression on the sealing member becoming insufficient and the seal performance being reduced if the nuts loosen thereafter. Therefore, this nonaqueous electrolyte secondary battery is constituted with a structure in which a cover that seals an opening part of a battery case, which is provided with an opening part that accommodates an electrode group and organic electrolyte, by being tightened securely to the battery case. Electrode terminals, which are electrically connected to the electrode group, face each other through an elastic body.
Provided is an electro-chemical capacitor that is highly resistant to vibrations. A positive current collecting member (39) is welded to an uncoated portion (25) of a positive plate (9) included in a coiled electrode plate group (5). An outer circumference portion (40) of the positive current collecting member (39) has a geometry extending to a position exceeding a top portion (3c) of an annular ridge portion (3a), and an insulating ring member (63) is disposed in a compressed state between the positive current collecting member (39), and the annular ridge portion (3a) and an annular wall area (3d) of a peripheral wall that connects to the annular ridge portion. This configuration securely affixes the electrode plate group unit in a container (3), while preventing a short circuit.
H01G 11/06 - Condensateurs hybrides avec une des électrodes permettant de doper les ions de façon réversible, p. ex. condensateurs lithium-ion
H01G 11/70 - Collecteurs de courant caractérisés par leur structure
H01G 11/74 - Bornes, p. ex. extensions des collecteurs de courant
H01G 11/82 - Fixation ou assemblage d’un élément capacitif dans un boîtier, p. ex. montage d’électrodes, de collecteurs de courant ou de bornes dans des récipients ou des encapsulations
H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c.-à-d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
A method for producing an electrode plate group unit for a lithium-ion capacitor, whereby a collector member and a pole plate are reliably welded together, and the resistance of the welded part is low, is provided. A lithium-ion capacitor is also provided. An uncoated section (25) of a positive electrode plate (9) and an uncoated section (33) of a negative electrode plate (11) are configured so as to protrude further to the outside than separators (13, 15) in the opposite direction, and an electrode plate group (5) is configured in such a manner as to be wound in a spiral in a cross-section as the core of an axis core (7). A metal lithium support member (17) is disposed on the negative electrode plate (11) in such a manner that a wound layer of the metal lithium support member (17) is positioned in the central area of the electrode plate group (5) in the radial direction. With a negative electrode collector (45) mounted on the uncoated section (33), welding is carried out using a direct light-focusing semiconductor laser device that continuously generates a laser beam to produce the electrode plate group unit for the lithium-ion capacitor (2). A lithium-ion capacitor (1) is obtained by housing the electrode plate group unit for the lithium-ion capacitor (2) in a container (3).
H01G 9/00 - Condensateurs électrolytiques, redresseurs électrolytiques, détecteurs électrolytiques, dispositifs de commutation électrolytiques, dispositifs électrolytiques photosensibles ou sensibles à la températureProcédés pour leur fabrication
H01G 11/06 - Condensateurs hybrides avec une des électrodes permettant de doper les ions de façon réversible, p. ex. condensateurs lithium-ion
H01G 11/28 - Électrodes caractérisées par leur structure, p. ex. multicouches, selon la porosité ou les caractéristiques de surface agencées ou disposées sur un collecteur de courantCouches ou phases entre les électrodes et les collecteurs de courant, p. ex. adhésifs
H01G 11/50 - Électrodes caractérisées par leur matériau spécialement adaptées aux condensateurs lithium-ion, p. ex. pour doper le lithium ou pour intercalation
H01G 11/82 - Fixation ou assemblage d’un élément capacitif dans un boîtier, p. ex. montage d’électrodes, de collecteurs de courant ou de bornes dans des récipients ou des encapsulations
H01G 11/86 - Procédés de fabrication de condensateurs hybrides ou EDL ou de leurs composants spécialement adaptés pour les électrodes
Provided is a non-aqueous electrolyte battery capable of ensuring stability when the battery is in an abnormal state and of limiting degradation in charging characteristics and energy density during battery use. The lithium ion secondary battery (1) has an electrode group (5) in which a positive-pole plate (2), which is a current collector where a positive-pole mix containing an active substance has been formed, and a negative-pole plate (3), which is a current collector where a negative-pole mix containing an active substance has been formed, are wound with a porous separator (4) therebetween. A flame retardant layer is placed on at least one face or both faces of the positive-pole plate (2), the negative-pole plate (3), and the separator (4). The flame retardant layer contains a non-fluorinated organic polymer, a flame retardant, and a thickening agent.
Provided is a lithium ion secondary battery with which it is possible to guarantee safety during a battery malfunction and prevent a reduction in high-performance discharge characteristics. The lithium ion secondary battery (1) has an electrode group (5) in which a positive-pole plate (2), which is a current collector where a positive-pole mix containing a positive-pole active substance has been formed, and a negative-pole plate (3), which is a current collector where a negative-pole mix containing a negative-pole active substance has been formed, are wound with a porous separator (4) therebetween. A flame retardant is added to the positive-pole mix of the positive-pole plate (2), and the mode of the diameter of pores formed in the positive-pole mix as determined by a mercury porosimeter is within the range of 0.5 to 2.0 µm. A path for lithium ion movement and a path for electron movement during discharge are simultaneously guaranteed.
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
A lithium-ion battery that is highly safe when a battery anomaly occurs. Said lithium-ion battery uses the following two organic solvents in a solvent mix that forms a non-aqueous electrolyte solution: ethylene carbonate and diethyl carbonate. Phosphazene A, a liquid flame retardant that has a functional group similar to diethyl carbonate, namely an ethoxy group, is added to the non-aqueous electrolyte solution. Even if this lithium-ion battery is left alone for a long period of time, the phosphazene A does not undergo a functional-group substitution reaction with the organic solvents and maintains its flame-retardancy. If a battery anomaly occurs, the flame-retardancy of the non-aqueous electrolyte solution takes full effect, ensuring battery safety.
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
Provided is a nonaqueous electrolyte battery capable of ensuring safety during battery malfunction and inhibiting the depletion of charge-discharge characteristics during battery usage. In the present invention, a lithium ion secondary battery (20) comprises an electrode group (6) contained in a battery container (7). The electrode group (6) comprises positive electrode plates and negative electrode plates coiled with separators (W5) in between. The positive electrode plates are provided with an aluminum foil (W1) which is a positive electrode current collector. A positive electrode compound layer (W2) containing a positive electrode active material is formed on both sides of the aluminum foil (W1). A flame retardant layer (W6) containing a flame retardant is formed on both sides of the positive electrode compound layer (W2). The flame retardant layer (W6) is provided with electron conductivity, and contains carbon material which is 25% or less in mass compared with the flame retardant. The negative electrode plate is provided with a rolled copper foil (W3) which is a negative electrode current collector. A negative electrode compound layer (W4) containing a negative electrode active material is formed on both sides of the rolled copper foil (W3). As such, electron conductivity is ensured during battery use, and the retardant agent disintegrates during battery malfunction.
Provided is a nonaqueous electrolyte battery in which the effects of a flame retardant on battery characteristics when in the usage environment for the battery are extremely small and which has a high degree of safety and stable battery characteristics because the nonaqueous electrolyte is given flame resistance for times when abnormal heat is generated in the battery. A nonaqueous electrolyte battery (1) is formed by adding many flame retardant particles to a nonaqueous electrolyte (9) as a flame retardant. The flame retardant particles are formed from a material such that at a temperature for the non-aqueous electrolyte (9) equal to or less than a reference temperature at which the possibility of combustion starting in the electrolyte increases, the flame retardant particles are present as a solid and do not exhibit a combustion controlling function. If the temperature of the nonaqueous electrolyte (9) exceeds the reference temperature, at least some of the flame retardant particles liquefy and exhibit a combustion controlling function.
Provided is a nonaqueous electrolyte battery in which a flame-resistant layer exhibits little effect on the discharge characteristics, even when the flame-resistant layer is formed on the surface of electrodes or the like. The nonaqueous electrolyte battery (1) is configured to be provided with a positive electrode plate (3), a negative electrode plate (5) and a separator (7). An ion-permeable porous layer is formed on the surface of the positive electrode plate (3) using a flame-resistant material. The porous layer is formed by coating the surface of the positive electrode plate (3) with a hot melt obtained by melting a flame-resistant material comprising a thermoplastic resin.
Provided is a non-aqueous electrolyte battery that can ensure safety when there is an abnormality in the battery, and inhibit reduction in capacity and output during battery use. A lithium-ion secondary battery (20) has a battery container (7) that accommodates an electrode group (6) onto which positive and negative electrode plates are wound with a separator therebetween and that is filled with a non-aqueous electrolyte. The positive electrode plate comprises an aluminum foil (W1) on both sides of which is formed a positive electrode mix layer (W2) containing a lithium transition metal multiple oxide. On the surface of the positive electrode mix layer (W2) is formed a flame retardant layer (W6) containing a phosphazene-compound flame retardant agent and a polyethylene oxide of an ion conductive binder. The negative electrode plate comprises a rolled copper foil (W3) on both sides of which is formed a negative electrode mix layer (W4) containing a carbon material of a negative electrode active material. The polyethylene oxide maintains ion conductivity, and when the battery temperature increases due to a battery abnormality, the phosphazene compound breaks down.
A nonaqueous electrolyte battery is provided with which it is possible to flatten voltage characteristics and thereby guarantee safety during a battery malfunction. A lithium ion secondary battery (20) has an electrode group (6) in which positive and negative pole plates are wound. The nonaqueous electrolyte is an EC and DMC mixed solvent to which LiBF4 is added. The positive pole plate is obtained by forming a positive pole mix layer (W2), which comprises a positive pole active substance, at both surfaces of an aluminum foil (W1). A lithium-manganese-magnesium compound oxide having a spinel crystal structure is used for the positive pole active substance. A flame retarder layer (W6) comprising a phosphazene compound is formed at the surface of the positive pole mix layer (W2). The negative pole plate is obtained by forming a negative pole mix layer (W4), which comprises a negative pole active substance, at both surfaces of a rolled copper foil (W3). A graphite material obtained by coating the surface of graphite with pyrolytic carbon is used for the negative pole active substance. The phosphazene compound provides flame resistance, and the voltage characteristics are flattened by the graphite material.
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
H01M 4/587 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx pour insérer ou intercaler des métaux légers
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 10/0568 - Matériaux liquides caracterisés par les solutés
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
91.
LEAD STORAGE BATTERY AND LEAD STORAGE BATTERY SYSTEM FOR SYSTEM UTILISING NATURAL ENERGY
A lead storage battery or lead storage battery system for a system utilising natural energy, wherein the purpose of the present invention is to provide a novel lead storage battery or lead storage battery system which is superior in terms of costs as the power and costs required for uniform charging and the number of times the natural energy/storage battery system stops are reduced by varying the uniform charging interval of the lead storage battery in accordance with the usage conditions (SOC transition) of the lead storage battery to thereby prolong the life of the lead storage battery, and by reducing the uniform charging performed only to ascertain the SOC. A further purpose is to provide a lead storage battery and a lead storage battery system in which operation is easy to manage as a result of it being made possible for the user of the lead storage battery to ascertain the timing of the next scheduled uniform charging. The lead storage battery and lead storage battery system is provided with: an SOC transition history management unit that obtains an estimated SOC transition condition; a lead storage battery deterioration model; and a uniform charging optimisation planning unit that plans a system for implementing an optimum lead storage battery, on the basis of the information of the deterioration model and the SOC transition condition from the SOC transition history management unit.
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
Provided is a lead-acid battery that limits the decline of high-rate discharge properties at low temperatures, while retaining the ability to accept a charge. A lead-acid battery, wherein a paste-type anode plate formed from holding a paste-type active material, which has lead powder as the raw material, in a lead alloy current collector, contains carbonaceous materials in the anode active material as well as (a) bisphenol sulphonic acid polymer and (b) Sodium lignosulphonate. In the combined (a) and (b), the proportion of (a) is 50-80% of the total mass of (a) and (b) and, relative to the mass of the raw lead powder of the anode active material, the combined mass of (a) and (b) is 0.05-0.3 mass%. Optimally, in the anode active material, squamous graphite with an average primary particle size of 10 µm or greater is contained as a carbonaceous material.
According to the present method, a paste-type electrode of lead-acid battery in which a space in the lower surface side of an electrode is favorably filled with a paste-like active material so that inner ribs of a current collector forming a grid shape does not remain exposed. The current collector is filled with a paste-like active material to obtain an electrode when the current collector passes below a filler including a hopper for containing the paste-like active material. An electrode surface is pressed during transfer of the electrode before the fed paste-like active material is hardened. The pressing step includes: a first pressing step of intensively pressing a first area of the electrode surface located on one side in a width direction that is perpendicular to a transfer direction in which the electrode is transferred and a thickness direction of the electrode; a second pressing step of intensively pressing a second area of the electrode surface located on the other side in the width direction; and a third pressing step of pressing the first and second areas of the electrode surface over the entire width of the electrode. The first to third pressing steps are each performed at least once. The pressing step is terminated by the third pressing step.
B23P 13/00 - Fabrication d'objets métalliques par des opérations impliquant un usinage à la machine, mais non couvertes par une seule autre sous-classe
B23P 19/00 - Machines effectuant simplement l'assemblage ou la séparation de pièces ou d'objets métalliques entre eux ou des pièces métalliques avec des pièces non métalliques, que cela entraîne ou non une certaine déformationOutils ou dispositifs à cet effet dans la mesure où ils ne sont pas prévus dans d'autres classes
Disclosed is a power supply device comprising: a first electrical storage unit and a second electrical storage unit which are connected in parallel with a load; a main switching circuit which is arranged on a current passage that connects the first electrical storage unit to the second electrical storage unit and which can switch between a passage-disconnected state and a passage-connected state; and a potential difference adjustment circuit which has a first switching circuit and a second switching circuit that are connected to each other in series and which is connected to the main switching circuit in parallel with each other. In the power supply device, the first switching circuit has at least one first semiconductor switching element that incorporates a body diode in the direction of the blocking of a current flowing from the first electrical storage unit toward the second electrical storage unit, the second switching circuit has at least one second semiconductor switching element that incorporates a body diode in the direction of the blocking of a current flowing from the second electrical storage unit toward the first electrical storage unit, and a control unit is additionally provided to the power supply device, wherein the control unit can control the first and second semiconductor switching elements so that the potential difference between the first electrical storage unit and the second electrical storage unit can be reduced and can also switch between the passage-disconnected state and a passage-connected state of the main switching circuit after the potential difference has been reduced.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
B60L 11/18 - utilisant de l'énergie fournie par des piles primaires, des piles secondaires ou des piles à combustibles
Disclosed is a liquid-type lead storage battery which is charged intermittently and during short periods of time, and which in a partially charged state has high-rate discharge to a load. Charge acceptance and lifetime performance in a PSoC are improved by configuring an electrode plate group comprising: a positive plate in which the total surface area of the positive electrode active substance per unit volume of the electrode plate group is set within the range of 3.5-15.6 m2/cm3; a negative plate with charge acceptance and lifetime performance improved by adding to the negative electrode active substance a carbonaceous conductive material and a bisphenol / aminobenzene sulfonic acid / formaldehyde condensate; and a separator in which the surface facing the negative plate is formed from a nonwoven fabric of a material selected from glass, pulp and polyolefin.
The disclosed liquid lead storage battery, which is charged intermittently for short periods at a time and which performs high-rate discharge to a load while in a partially charged state, has increased operating-life characteristics and charge acceptance by means of using: a cathode plate wherein the specific surface area of active material is at least 6 m2/g; an anode plate wherein a carbonaceous conductive material and a bisphenol/aminobenzenesulfonic acid/formaldehyde condensate are added to an anode active material, increasing charge acceptance and operating-life performance; and a separator of which the surface that faces the anode plate is formed from a nonwoven fabric of a material selected from glass, pulp, and a polyolefin.
Disclosed is a liquid lead storage battery—which is charged intermittently for short periods at a time and which performs high-rate discharge to a load while in a partially charged state—which uses a cathode plate of which the utilization rate of a cathode active material is in the range of 50-65% and an anode plate wherein a carbonaceous conductor and a bisphenol/aminobenzenesulfonic acid/formaldehyde condensate are added to an anode active material and that has increased charge acceptance and operating-life characteristics; and charge acceptance and operating-life characteristics under PSOC are caused to be greater than conventionally by means of using as a separator that which has a surface that faces the anode plate formed from a non-woven fabric of a material selected from glass, pulp, and a polyolefin.
A paste type lead acid battery plate is manufactured in which a pasty active material is preferably filled on a lower surface side of a polar plate, and a lattice-formed inner framework of a power collector is prevented from being exposed. In the power collector which passes below a filling machine provided with a hopper in which the pasty active material is stored, the pasty active material is filled, to obtain a polar plate, and the surface of the polar plate is pressed while the filled pasty active material is soft with the polar plate conveyed. At this time, a first pressing process for heavily pressing a first region on a polar plate surface disposed on one side in the width direction of the polar plate, which is perpendicular to the conveying direction of the polar plate and the thickness direction of the polar plate, a second pressing process for heavily pressing a second region of the polar plate surface disposed on the other side of the width direction of the polar plate, and a third pressing process for pressing the polar plate in the overall width direction are carried out at least once, and the third pressing process is carried out at the end of the pressing processes.
Provided is a method for, in order to compensate the variations of the electrical generation amount of a natural energy generator such as a solar battery, a wind power generator, etc., operating a lead storage battery which is charged by the generator and is discharged to a load. The battery is charged and discharged under the condition that when defining the fully charged state of the lead storage battery as 100%, the charge state of the battery is maintained in the range of 30 to 90% and the battery voltage is kept within the specified range of 1.80 to 2.42 V/cell, thereby extending the life of the battery. A temperature of 25 °C is set as a reference temperature, and when an ambient temperature rises above or drops below the reference temperature, according to the temperature rise or drop amount, the upper and lower limit values of the specified range are corrected within the range of -4 mV/°C to -6 mV/°C per cell to obtain a corrected voltage range. The battery is then operated so as to be discharged and charged while keeping the battery voltage within the corrected voltage range.
