GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Joo Seong
Han, Un Gi
Kim, Sang Ryun
Joo, Seung Hee
Kim, Hye Rim
Abstract
The present application relates to a high energy density electrochemical cell having notably enhanced life characteristics by effectively inhibiting side reactions at the interface between lithium metal and a solid electrolyte. The present application comprises: a negative electrode comprising lithium metal; a positive electrode; and a solid electrolyte positioned between the negative electrode and the positive electrode. The solid electrolyte comprises: a first ion conductor which is a complex hydride comprising hydride-based complex anions; and a second ion conductor comprising a sulfur compound.
KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION (Republic of Korea)
Inventor
Kim, Joo Seong
Yoo, Dong Joo
Lim, Seung Gyu
Kim, Seon Kyong
Koo, Ju Hyun
Hwang, Jae Ho
Abstract
The present application relates to a composition for a non-aqueous electrolyte, comprising a mixed solvent and optionally comprising dual lithium salts, and to an electrochemical cell comprising the composition.
This battery comprises: an electrode assembly including a plurality of electrodes; and an exterior material including an accommodation part, which accommodates the electrode assembly, and a sealing part, which seals the electrode assembly along the accommodation part, wherein a reinforcing structure is formed outside the exterior material.
H01M 50/247 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
4.
SUPERIONIC CONDUCTOR AND ELECTROCHEMICAL CELL COMPRISING SAME
GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Sang Ryun
Kang, Seoung Jae
Kim, Joo Seong
Lim, Seung Gyu
Kim, Seon Kyong
Choi, Seong Jin
Abstract
The present application relates to a superionic conductor having excellent ionic conductivity and being stable at room temperature, a method of preparing same, and an electrochemical cell including same. A first aspect of the present application provides an acid-hydride-based superionic conductor, which is a composite comprising: a complex hydride including a hydride-based complex ion and a cation containing an alkali metal or an alkaline earth metal; and a metal oxide. When the superionic conductor of the present invention is applied to an all-solid state battery and used as a solid electrolyte of a secondary battery, an all-solid state battery having significantly improved high energy density, high output, and stability can be provided.
An apparatus for forming a pattern on an exterior material of a battery includes a plate that has a plurality of holes and includes a receiving region formation part configured to form a receiving region in an exterior material in a longitudinal direction of the battery and a non-receiving region formation part configured to form a non-receiving region enclosing the receiving region, and a punch assembly that has a plurality of punches corresponding to the plurality of holes and inserted into the plurality of holes to penetrate through the plate.
This battery comprises: an electrode assembly including a plurality of electrodes; and an exterior material accommodating the electrode assembly and having a corrugated pattern including at least one groove and at least one ridge, wherein the at least one ridge has recesses formed by recessing portions of the at least one ridge.
H01M 50/116 - Primary casingsJackets or wrappings characterised by the material
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 10/04 - Construction or manufacture in general
7.
Electrode assembly having improved safety of use by means of outermost electrode structure and current collector material, and lithium-ion secondary battery having same
An electrode assembly includes a plurality of unit cells each equipped with a pair of electrodes having different polarities. Electrode tabs protrude from the electrodes. The electrode tabs including at least one electrode parallel connection tab and at least one electrode lead connection tab. In a first unit cell of the plurality of unit cells, a current collector of a first electrode among the pair of electrodes is made of a different material from a current collector of a second electrode among the pair of electrodes having the different polarity.
H01M 10/04 - Construction or manufacture in general
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
An electrode assembly according to the present disclosure includes one or more unit cells each equipped with a pair of electrodes having different polarities with a separator interposed therebetween, an electrode mixture coated on one or both surfaces of the pair of electrodes, and electrode tabs located on the edges of the respective electrodes and not coated with the electrode mixture, and the electrode tabs include an electrode parallel connection tab and an electrode lead connection tab, and any one or more of the electrode parallel connection tab and the electrode lead connection tab are formed on the electrodes, and an outermost electrode is a negative electrode.
An apparatus for forming a pattern on an exterior material of a battery, comprises: a plate having a plurality of holes, and comprising an accommodation area forming portion which forms an accommodation area in the exterior material in the lengthwise direction of the battery, and a non-accommodation area forming portion which forms a non-accommodation area surrounding the accommodation area; and a punch assembly including a plurality of punches which are inserted in the plurality of holes in correspondence with the plurality of holes, so as to penetrate through the plate.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
Disclosed is an electrode assembly comprising: a plurality of current collectors that are alternately stacked; and separators placed between the plurality of current collectors, wherein current collectors with the same polarity, from among the plurality of current collectors, are connected through tabs for parallel connection, which are formed at respective current collectors, tabs for lead connection are formed at a pair of current collectors from among the plurality of current collectors, and one current collector from among the pair of current collectors, in which the tabs for lead connection are formed, may not be coated with an energy material.
H01M 50/531 - Electrode connections inside a battery casing
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
An exterior material to be used for a battery includes a barrier layer, a first functional layer formed on one surface of the barrier layer, a second functional layer formed on the other surface of the barrier layer, and an anti-corrosion layer formed on at least one surface of the barrier layer. The first functional layer is composed of one or more resin layers including a sealing layer, and the second functional layer has a greater thickness than the barrier layer and has a thickness of 33% or more of the total thickness of the exterior material.
An exterior material to be used for a battery comprises at least one pattern part formed in a machine direction (MD) of the exterior material, wherein the MD of the exterior material is a width direction of a battery including the exterior material, and a transverse direction (TD) of the exterior material is a longitudinal direction of the battery including the exterior material.
An exterior material to be used for a battery comprises at least one pattern part formed in a transverse direction (TD) of the exterior material, wherein the TD of the exterior material is a width direction of a battery including the exterior material, and a machine direction (MD) of the exterior material is a longitudinal direction of the battery including the exterior material.
A flexible battery may include: an electrode assembly having one or more unit cells each of the unit cells including a pair of electrode plates having different polarities, a separator interposed between the respective electrode plates and electrode tabs that protrude from the respective electrode plates; a pair of electrode leads connected to electrode tabs; and a strengthening tab fixed on any one electrode lead connection tab among the electrode tabs.
Exterior material used for a battery includes at least one patterned part formed in the machine direction (MD) of the exterior material, wherein MD of the exterior material is in the widthwise direction of the battery comprising the exterior material, and the transverse direction (TD) of the exterior material is the lengthwise direction of the battery comprising the exterior material.
An exterior material used in a battery comprises: a blocking layer; a first functional layer formed on one surface of the blocking layer; a second functional layer formed on the other surface of the blocking layer; and an anti-corrosion layer formed on at least one surface of the blocking layer, wherein the first functional layer is composed of one or more resin layers including a sealing layer; and the second functional layer is thicker than the blocking layer and has a thickness of 33% or more of the total thickness of the exterior material.
An electrochemical cell includes an electrode assembly including a plurality of electrodes; an exterior material including an accommodating part that accommodates the electrode assembly and a ealing part that seals the electrode assembly by bonding sealing surfaces along edges of the accommodating part; and an electrode lead connected to the electrode assembly and extended to be exposed to an outside, wherein the accommodating part includes a concavo-convex pattern extended in on one direction and disposed in a direction intersecting with the one direction, and at least a part of the concavo-convex pattern includes an adjacent portion that forms a boundary line in contact with the sealing part at an end portion in the one direction.
An exterior material used for a battery includes at least one pattern part formed in a transverse direction (TD) of the exterior material, wherein the TD of the exterior material is a widthwise direction of the battery including the exterior material and a machine direction (MD) of the exterior material is a lengthwise direction of the battery including the exterior material.
H01M 50/116 - Primary casingsJackets or wrappings characterised by the material
H01M 50/124 - Primary casingsJackets or wrappings characterised by the material having a layered structure
H01M 10/04 - Construction or manufacture in general
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
G01N 3/08 - Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
A battery pouch that is formed to accommodate an electrode assembly, comprising: a first member layer; and a second member layer that is located between the first member layer and the electrode assembly, and contains an elastomer and protrudes toward the electrode assembly at a plurality of locations to be brought into discontinuous contact with the electrode assembly, wherein the second member layer has spaces open to the electrode assembly between the protruding portions. Accordingly, the power output characteristics of the battery can be improved and the damage to the damage to the sealing portion can be prevented.
A curved electrochemical cell according to the present invention comprises: an electrode assembly having a plurality of electrodes and electrode tabs formed on the electrodes; an exterior material formed to accommodate the electrode assembly; and an electrode lead connected to the electrode tabs and exposed to the outside of the exterior material. The exterior material is formed to be curved such that the radius of curvature at one of the two ends in the longitudinal direction is a smaller value than the radius of curvature at the other end located on the opposite side from the one end.
A wearable accessory, comprising: a device mounting part configured to be coupled with a device; and a body-coupled part formed to extend from the device mounting part along a lengthwise direction, wherein the body-coupled part includes: a flexible cell equipped with an electrode assembly, a casing that accommodates therein the electrode assembly, and a cell terminal connected to the electrode assembly and protruding from an opposite side of a side adjacent to the device mounting part; a connection circuit extending by being connected to a main circuit module formed on the device or the device mounting part; and a protection circuit module configured to connect the cell terminal and the connection circuit to each other and block an electrical connection between the cell terminal and the connection circuit when damage of the protection circuit module occurs by external force.
A flexible battery includes an electrode group including a first electrode and a second electrode, a pair of electrode leads connected to the first electrode and the second electrode, respectively and a housing that accommodates the electrode group.
H01M 10/04 - Construction or manufacture in general
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/116 - Primary casingsJackets or wrappings characterised by the material
H01M 50/50 - Current conducting connections for cells or batteries
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
33.
ELECTROCHEMICAL CELL AND EXTERIOR MATERIAL INCLUDED THEREIN
An electrochemical cell according to the present invention comprises: an electrode assembly comprising a plurality of electrodes; an exterior material comprising an accommodation part for accommodating the electrode assembly and a sealing part for sealing the electrode assembly by bonding of a sealing surface along the edges of the accommodation part; and electrode leads which are connected to the electrode assembly and extend to be exposed to the outside, wherein the accommodation part extends in one direction and includes an uneven pattern provided in a direction crossing the one direction, and at least a portion of the uneven pattern includes an adjacent portion which forms a boundary line in contact with the sealing part at an end portion in the one direction.
Electrode assembly having improved safety of use by means of outermost electrode structure and current collector material, and lithium-ion secondary battery having same
An electrode assembly includes a plurality of unit cells each equipped with a pair of electrodes having different polarities. Electrode tabs protrude from the electrodes. The electrode tabs including at least one electrode parallel connection tab and at least one electrode lead connection tab. In a first unit cell of the plurality of unit cells, a current collector of a first electrode among the pair of electrodes is made of a different material from a current collector of a second electrode among the pair of electrodes having the different polarity.
H01M 10/04 - Construction or manufacture in general
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 50/178 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
H01M 50/534 - Electrode connections inside a battery casing characterised by the material of the leads or tabs
H01M 50/54 - Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
H01M 50/572 - Means for preventing undesired use or discharge
H01M 50/574 - Devices or arrangements for the interruption of current
H01M 50/579 - Devices or arrangements for the interruption of current in response to shock
35.
Electrode assembly having improved safety of use by means of structure in which local site in exterior material is reinforced with elastic polymer film, and lithium-ion secondary battery having same
A lithium ion secondary battery according to the present disclosure includes: an electrode assembly; and a case having a structure in which upper stamped portions and lower stamped portions are repeatedly stamped to cover the outside of the electrode assembly, and the upper stamped portions and the lower stamped portions form a corrugated pattern, and the electrode assembly includes: one or more unit cells each equipped with a pair of electrodes having different polarities with a separator interposed therebetween; an electrode mixture coated on one or both surfaces of the pair of electrodes; and electrode tabs protruded from the respective electrodes and not coated with the electrode mixture, and the electrode tabs include an electrode parallel connection tab and an electrode lead connection tab, and any one or more of the electrode parallel connection tab and the electrode lead connection tab is formed on the electrodes, and an elastic polymer film is overlapped on a local portion in the case.
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
A wallet capable of being coupled to a wearable device comprises: a main body including at least one storage space; a binding unit disposed in the main body to thereby bind the wearable device to the main body; and a charging unit embedded in the main body and having a battery for charging the wearable device, wherein the charging unit may charge the wearable device through the battery when the wearable device is bound to the binding unit.
A metal tab included in a lithium secondary battery, wherein the lithium secondary battery includes a first electrode and a second electrode having different polarities with a separator interposed therebetween, and the metal tab is provided only on a first electrode tab protruded and extended from the first electrode, and a current collector of the first electrode has a Young's modulus equal to or less than that of a current collector of the second electrode.
A lithium ion secondary battery according to the present disclosure includes: an electrode assembly; and a case having a structure in which upper stamped portions and lower stamped portions are repeatedly stamped to cover the outside of the electrode assembly, and the upper stamped portions and the lower stamped portions form a corrugated pattern, and the electrode assembly includes: one or more unit cells each equipped with a pair of electrodes having different polarities with a separator interposed therebetween; an electrode mixture coated on one or both surfaces of the pair of electrodes; and electrode tabs protruded from the respective electrodes and not coated with the electrode mixture, and the electrode tabs include an electrode parallel connection tab and an electrode lead connection tab, and any one or more of the electrode parallel connection tab and the electrode lead connection tab is formed on the electrodes, and the corrugated pattern has various intervals.
An electrode assembly according to the present disclosure includes one or more unit cells each equipped with a pair of electrodes having different polarities with a separator interposed therebetween, an electrode mixture coated on one or both surfaces of the pair of electrodes, and electrode tabs located on the edges of the respective electrodes and not coated with the electrode mixture, and the electrode tabs include an electrode parallel connection tab and an electrode lead connection tab, and any one or more of the electrode parallel connection tab and the electrode lead connection tab are formed on the electrodes, and an outermost electrode is a negative electrode.
A flexible battery may include: a first electrode assembly including one or more unit cells, each having a pair of electrodes with a separator interposed therebetween; a single electrode; and a second electrode assembly connected to the first electrode assembly or to the single electrode and including a single electrode and a separator covering a top and bottom of the single electrode of the second electrode assembly.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
H01M 50/531 - Electrode connections inside a battery casing
A sheath material for a battery according to the present invention, which receives an electrode assembly, comprises: a first member layer; and a second member layer which is positioned between the first member layer and the electrode assembly, includes an elastic polymer, and has portions protruding from a plurality of positions thereof toward the electrode assembly so as to discontinuously come into contact with the electrode assembly, wherein the second member layer forms spaces which are positioned between the protruding portions and are open toward the electrode assembly. Accordingly, the battery has an enhanced output characteristic, and can prevent damage to a sealing part.
A wearable accessory according to the present invention comprises: a device mounting part formed to be coupled to a device; and a body binding part extending in a longitudinal direction from the device mounting part, wherein the body binding part comprises: a flexible cell including an electrode assembly, an exterior member for accommodating the electrode assembly, and a cell terminal connected to the electrode assembly and protruding from an opposite side of a side adjacent to the device mounting part; a connection circuit extending in connection with a main circuit module formed in the device or the device mounting part; and a protection circuit module configured to connect the cell terminal and the connection circuit to each other, and to cut off electrical connection of the cell terminal and the connection circuit in the case of damage by an external force.
A flexible battery may include: an electrode assembly having one or more unit cells each of the unit cells including a pair of electrode plates having different polarities, a separator interposed between the respective electrode plates and electrode tabs that protrude from the respective electrode plates; a pair of electrode leads connected to electrode tabs; and a strengthening tab fixed on any one electrode lead connection tab among the electrode tabs.
A flexible battery can comprise: an electrode group comprising a first electrode and a second electrode; a pair of electrode leads connected to the first electrode and the second electrode, respectively; and a housing accommodating the electrode group.
H01M 10/04 - Construction or manufacture in general
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
A charging assistant device capable of being coupled with a wearable device comprises: a main body extending in opposite directions so as to be capable of being coupled at both ends thereof; a fastening part arranged on the main body so as to fasten the wearable device to the main body; and a charging unit embedded in the main body so as to have a battery for charging the wearable device, wherein the charging unit can charge the wearable device through the battery when the wearable device is fastened to the main body.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
G06F 1/16 - Constructional details or arrangements
47.
ELECTRODE ASSEMBLY HAVING IMPROVED SAFETY OF USE BY MEANS OF OUTERMOST ELECTRODE STRUCTURE AND CURRENT COLLECTOR MATERIAL, AND LITHIUM-ION SECONDARY BATTERY HAVING SAME
An electrode assembly, according to the present invention, comprises: at least one unit cell having a pair of electrode plates comprising a first electrode plate and a second electrode plate having different polarities from each other and having a separator interposed therebetween; an electrode mixture applied on one surface or both surfaces of the pair of electrode plates; and an electrode tab protruding from each of the electrode plates while at the same time, being in a state where the electrode mixture is not applied thereon. The electrode tab includes an electrode parallel connecting tab and an electrode lead connecting tab. The electrode plates have formed thereon at least one electrode tab among the electrode parallel connecting tab and the electrode lead connecting tab. A current collector of the first electrode plate is formed from a material that is different from that of a current collector of the second electrode plate having a different polarity so that, among the electrode plates, the first electrode plate comprising the electrode lead connecting tab may be physically cut before the second electrode plate when a bending and twisting motion occurs.
H01M 10/04 - Construction or manufacture in general
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
48.
ELECTRODE ASSEMBLY HAVING IMPROVED SAFETY OF USE BY MEANS OF OUTERMOST ELECTRODE STRUCTURE AND CURRENT COLLECTOR MATERIAL, AND LITHIUM-ION SECONDARY BATTERY HAVING SAME
An electrode assembly, according to the present invention, comprises: at least one unit cell having a pair of electrode plates comprising a first electrode plate and a second electrode plate having different polarities from each other and having a separator interposed therebetween; and an electrode tab protruding from each of the electrode plates. The electrode tab includes an electrode parallel connecting tab and an electrode lead connecting tab. The first electrode plate is disposed on the outermost part of the electrode assembly and is provided with the electrode parallel connecting tab and the electrode lead connecting tab. A current collector of the second electrode plate exhibits greater tensile stress than that of a current collector of a first electrode.
H01M 10/04 - Construction or manufacture in general
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
49.
ELECTRODE ASSEMBLY HAVING IMPROVED SAFETY OF USE BY MEANS OF STRUCTURE IN WHICH LOCAL SITE IN EXTERIOR MATERIAL IS REINFORCED WITH ELASTIC POLYMER FILM, AND LITHIUM-ION SECONDARY BATTERY HAVING SAME
A secondary battery, according to the present invention, comprises: an electrode assembly; and an exterior material for covering the outer side of the electrode assembly by having a structure in which top stamped portions and bottom stamped portions are repeatedly stamped. The top stamped portions and the bottom stamped portions form a corrugated pattern. The electrode assembly comprises: at least one unit cell having a pair of electrode plates having different polarities from each other and having a separator interposed therebetween; an electrode mixture applied on one surface or both surfaces of the pair of electrode plates; and an electrode tab protruding from each of the electrode plates while at the same time, being in a state where the electrode mixture is not applied thereon. The electrode tab includes an electrode parallel connecting tab and an electrode lead connecting tab. The electrode plates have formed thereon at least one electrode tab among the electrode parallel connecting tab and the electrode lead connecting tab. A structure is formed in which a local site of the exterior material is reinforced with an elastic polymer film thereon.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
A secondary battery, according to the present invention, comprises: an electrode assembly; and an exterior material for covering the outer side of the electrode assembly by having a structure in which top stamped portions and bottom stamped portions are repeatedly stamped. The top stamped portions and the bottom stamped portions form a corrugated pattern. The electrode assembly comprises: at least one unit cell having a pair of electrode plates having different polarities from each other and having a separator interposed therebetween; an electrode mixture applied on one surface or both surfaces of the pair of electrode plates; and an electrode tab protruding from each of the electrode plates while at the same time, being in a state where the electrode mixture is not applied thereon. The electrode tab includes an electrode parallel connecting tab and an electrode lead connecting tab. The electrode plates have formed thereon at least one electrode tab among the electrode parallel connecting tab and the electrode lead connecting tab. The intervals in the corrugated pattern are different from each other.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
An electrode assembly, according to the present invention, comprises: at least one unit cell having a pair of electrode plates having different polarities from each other and having a separator interposed therebetween; an electrode mixture applied on one surface or both surfaces of the pair of electrode plates; and an electrode tab positioned on the respective edges of the electrode plates while at the same time, being in a state where the electrode mixture is not applied thereon. The electrode tab includes an electrode parallel connecting tab and an electrode lead connecting tab. The electrode plates have formed thereon at least one electrode tab among the electrode parallel connecting tab and the electrode lead connecting tab. The outermost electrode plate is in a negative electrode state.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 10/04 - Construction or manufacture in general
Provided is a metal tab, which is welded only onto a first electrode tab extending so as to protrude from a first electrode in a lithium secondary battery comprising the first electrode and a second electrode which have different polarities by placing a separator therebetween, wherein a current collector of the first electrode has Young's modulus, which is less than or equal to that of a current collector of the second electrode.
A power supply device, that constitutes a wearable device and that has a flexible battery embedded therein, according to the present invention comprises: a case (110) that has a hollow shape such that it can be mounted on the head of a user; a magnetic induction unit (120) that is disposed in a front part of the case (110); a charging connection unit (130) that is formed on the case (110); a power source unit (140) that is disposed in a side part of the case (110); a USB charging unit (150) that is disposed in a lower part of the case (110); a circuit board unit (160) that is inserted into and disposed inside the case (110); and a flexible battery unit (170) that is inserted into and disposed inside the case (110), wherein the charging connection unit (130) is inserted into a groove that is formed in a front centre part of the power supply device so as to allow the power supply device to attach and detach to/from a wearable device, and the power supply device provides power while coupled to the wearable device in a state in which it can be docked thereto, and controls the wearable device using the power source unit (140) having an on/off switch attached to the surface of the circuit board unit (160).
09 - Scientific and electric apparatus and instruments
14 - Precious metals and their alloys; jewelry; time-keeping instruments
Goods & Services
cellular telephone cases of leather; dry cells and batteries, mechanical contact switches; lithium-ion secondary batteries; modules for lithium secondary batteries, lithium secondary battery pack; lithium batteries, receivers for wireless communication; wireless headsets, battery compensation chargers; cases for batteries; auxiliary battery packs; wireless earset, wrist-mounted smartphones, sub batteries for smart phones, chargers for smart phones, cases for smartphones, smartphones in the shape of a watch, cords for spectacles and sunglasses, secondary cells, batteries and battery chargers, battery packs for charging, battery charge devices, protective case for tablet PC, mobile phone cases, headphones, portable rechargers, wireless charging wristband. watchstraps made of leather; watch straps of metal; ankle bracelets; bangle bracelets; presentation boxes for watches; wristwatches; bracelets for wristwatches; clock housings; watch bands; watch bands and straps; boxes for timepieces; straps for wristwatches; watches for outdoor use; women's watches; women's jewelry; imitation leather key chains; bracelets [jewellery]; watch bracelets; watch band with the function of binding watches.
14 - Precious metals and their alloys; jewelry; time-keeping instruments
Goods & Services
watchstraps made of leather; watch straps of metal; ankle bracelets; bangle bracelets; presentation boxes for watches; wristwatches; bracelets for wristwatches; clock housings; watch bands; watch bands and straps; boxes for timepieces; straps for wristwatches; watches for outdoor use; women's watches; women's jewelry; imitation leather key chains; bracelets; watch bracelets; watch band with the function of binding watches
56.
ELECTRODE ASSEMBLY OF COMPOSITE STRUCTURE AND LITHIUM ION SECONDARY BATTERY HAVING SAME ELECTRODE ASSEMBLY
An electrode assembly of a composite structure according to the present invention comprises: a first electrode assembly including at least one unit cell having a pair of electrode plates on the basis of a separator; a single electrode plate disposed so as to face one side of the first electrode assembly; and a second electrode assembly in the form of a pocket which is connected to the first electrode assembly or the single electrode plate and in which the separator encloses two sides of the single electrode plate, wherein the first and second electrode assemblies and the single electrode plate are connected to the same electrode through tabs for connecting electrodes in parallel, each of which is formed on the first and the second electrode assemblies and the single electrode plate, and wherein a tape is locally applied on the separator enclosing the outer surface of a structure in which the first electrode assembly, the single electrode plate, and the second electrode assembly are stacked in order.
A flexible battery assembly according to the present invention comprises: an electrode assembly comprising one or more unit cells having a pair of electrode plates having different polarities with a separator interposed therebetween, and the electrode assembly comprising electrode tabs protruding from the electrode plates, respectively, and having no electrode binder applied thereto; a reinforcement tab thermally attached/fixed onto an electrode lead connection tab among the electrode tabs constituting the electrode assembly; and a pair of electrode leads thermally attached onto the reinforcement tab and another electrode lead connection tab, respectively. The flexible battery assembly according to the present invention is characterized in that one of the pair of electrode leads is thermally attached onto a reinforcement tab structured to additionally straddle between the electrode lead connection tab and the electrode lead, and is thereby connected to the electrode lead connection tab. The flexible battery assembly according to the present invention is also characterized in that the other of the pair of electrode leads is thermally attached to the electrode lead connection tab so as to face from the electrode lead connection tab toward the electrode assembly, is bent in the opposite direction by 180º while remaining thermally attached thereto, and thus is structured to face toward the outside of the electrode assembly. A tab for electrode parallel connection among the electrode tabs is structured to connect electrode plates having the same polarity among a plurality of laminated electrode plates to each other.
