A negative electrode active material comprises a carbon-based material and a silicon-based material, wherein a first functional group exists on the surface of the carbon-based material, a second functional group exists on the surface of the silicon-based material, and the first functional group has a charge opposite to that of the second functional group.
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/134 - Electrodes based on metals, Si or alloys
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
2.
THERMAL MANAGEMENT COMPONENT, BATTERY, AND ELECTRIC APPARATUS
This application discloses a thermal management component, a battery, and an electric apparatus. The thermal management component includes a housing and a support member. The housing is provided with an accommodating space inside, and the housing includes a first wall and a second wall respectively located on two sides of the accommodating space. The support member is disposed in the accommodating space and supports between the first wall and the second wall, and the support member is configured to be deformable when subjected to extrusion by the first wall. When a battery cell of the battery swells during the charge-discharge cycle, the first wall deforms along with deformation of the support member under the extrusion of the battery cell, squeezing out space for swelling of the battery cell, reducing an acting force between the battery cell and the thermal management component, thereby improving the cycling performance of the battery cell.
H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
A regulation circuit may include: a battery side, configured to be connected to the battery; a bus side, configured to be connected to an external power supply; a power module, configured to regulate a voltage and connected between the battery side and the bus side; and a control switch group. The control switch group includes: a first control switch, connected between the bus side and the power module; a second control switch, connected between the first control switch and the battery side; and a third control switch, connected between the power module and the battery side.
H01M 10/637 - Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devicesControl systems characterised by control of the internal current flowing through the cells, e.g. by switching
B60L 58/27 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
H01M 10/633 - Control systems characterised by algorithms, flow charts, software details or the like
H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
4.
ELECTRODE ASSEMBLY AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND POWER CONSUMING DEVICE
The present application provides an electrode assembly and a preparation method therefor, a secondary battery, and a power consuming device. A reserved space is formed between at least one surface of a separator and a corresponding electrode plate, and a spacing D of the reserved space tends to increase in a preset direction of the electrode plate from either edge of the separator to a middle of the separator, so that the reserved space is of a structure with a large middle and two small ends. In this way, during cycle of charging and discharging, when the electrode plate expands at a middle part more than at two edges thereof in its own width direction, the electrode plate is better accommodated in the reserved space.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
5.
CARBON MATERIAL, METHOD FOR PREPARING THE SAME, AND SECONDARY BATTERY AND ELECTRICAL DEVICE COMPRISING THE SAME
The present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes a pore structure, wherein the carbon material satisfies 0.150≤ID/IG≤0.280, with ID indicating an intensity of the D peak of the Raman spectrum at 1350±50 cm−1 and IG indicating an intensity of the G peak of the Raman spectrum at 1580±50 cm−1. The carbon material provided in the present application can make the secondary battery have high initial columbic efficiency, high energy density, good cycling performance and storage performance.
The present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes a pore structure, an adsorption amount of linseed kernel oil to 100 g of the carbon material 100 g is denoted as A in ml, a specific surface area of the carbon material is denoted as B in m2/g and the carbon material satisfies: 36≤A×B≤75. The carbon material provided in the present application can make the secondary battery have high initial columbic efficiency, high energy density and good cycle performance and storage performance.
The present application provides a secondary battery and a power consuming device. The secondary battery comprises a negative electrode plate, wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector, the negative electrode film layer has a first surface away from the negative electrode current collector and a second surface opposite to the first surface; the first area comprises a first active material, the first active material comprises a first carbon-based material, and the first carbon-based material has a pore structure; and the second area comprises a second active material, and the second active material comprises a second carbon-based material. The present application enables the secondary battery to have not only a high energy density but also high safety performance, and good dynamic performance, cycling performance and storage performance.
Provided are an electrolyte, a secondary battery, a battery module, a battery pack and a power consuming device. The electrolyte of the present application comprises a first additive, wherein the first additive is a sulfur-containing compound with a boiling point not exceeding 70° C. under a standard atmospheric pressure, and the mass content of the first additive in the electrolyte is 0.05%-6%. The electrolyte of the present application can form a stable interface film on the surface of the negative electrode plate, which inhibits side reactions between the electrolyte and the negative electrode plate, thereby reducing the interface impedance of the negative electrode, reducing the precipitation of sodium, and improving the cycle performance and safety performance of the secondary battery.
A battery cell, a battery, and an electrical device. The battery cell includes: a shell having an end opening; an electrode assembly disposed in the shell); a support member located between the electrode assembly and the shell and configured to support the electrode assembly; an end cover assembly including a cover plate and an isolation structure, the cover plate being configured to cover the end opening, and the isolation structure being located on a side, adjacent to the electrode assembly, of the cover plate; and an insulating member located between the electrode assemble and the shell, where the support member is fixedly connected to the isolation structure, and the insulating member is fixedly connected to at least one of the support member and the isolation structure.
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
H01M 50/477 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their shape
The present application provides a battery and an electricity consuming apparatus. The battery includes: a case having an accommodating chamber; a battery cell disposed in the accommodating chamber, where the battery cell has a first pressure relief mechanism for releasing a substance inside the battery cell; a treating medium for reacting with the substance to reduce a value of a predetermined parameter of the substance, where the treating medium is disposed in the case; and a second pressure relief mechanism for discharging the substance that has reacted with the treating medium to the outside of the case, where the second pressure relief mechanism is disposed on the case. In the battery and the electricity consuming apparatus provided in the present application, the battery can treat gaseous combustibles released from its battery cell to reduce the possibility of combustion, so as to achieve good safety performance.
H01M 50/383 - Flame arresting or ignition-preventing means
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
Provided are a secondary battery and a method of preparing the secondary battery. The secondary battery includes a positive electrode plate and an electrolytic solution, wherein the positive electrode plate includes a positive electrode current collector and a positive electrode film layer provided on at least one surface of the positive electrode current collector, the positive electrode film layer has a porosity of P, the electrolytic solution includes a dehydrating additive, and based on a total mass of the electrolytic solution, a mass percentage of the dehydrating additive in the electrolytic solution is a, and the secondary battery satisfies: 0.2≤(a*100)/P≤3.5. The secondary battery of the present application has improved initial direct current resistance (DCR) and high temperature cycle performance while having an improved porosity to balance high energy density and good dynamics.
Provided are a negative electrode active material, a preparation method thereof, a secondary battery and an electrical device. The negative electrode active material includes a silicon-carbon composite. An X-ray photoelectron spectroscopy (XPS) of the silicon-carbon composite has a Si2p peak. The Si2p peak can form the following sub-peaks after a peak splitting treatment: a first sub-peak with a binding energy of 99.7±0.2 eV; and a second sub-peak with a binding energy of 98.9±0.2 eV. A peak area ratio of the first sub-peak to the second sub-peak is (1 to 2):1.
The embodiments of the present disclosure provide a battery module, battery, and electrical device, relating to the field of battery technology. The battery module comprises a battery cell group, an end plate, a fixing base, and an output pole. The battery cell group comprises multiple battery cells arranged in a stack along a first direction. The end plate is arranged on one side of the battery cell group along the first direction, and the end plate comprises a first surface away from the battery cell group. The fixing base is connected to the end plate and protrudes from the first surface. One end of the output pole is electrically connected to the battery cell group, and the other end of the output pole is fixed to the fixing base. The battery formed by the battery module has a higher energy density.
H01M 50/262 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
H01M 50/507 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
A battery cell includes a shell, an electrode terminal, and a blocking member. The shell includes a wall portion having a lead-out hole. The electrode terminal includes an insertion portion and a flange portion connected in an axial direction of the electrode terminal. The insertion portion is in the lead-out hole, the flange portion is at the side of the insertion portion away from the inside of the shell in a radial direction of the electrode terminal, an outer peripheral surface of the flange portion is partially beyond an outer peripheral surface of the insertion portion, and the electrode terminal has a recessed portion arranged in the axial direction. The blocking member blocks the recessed portion and includes a body that covers the side of the flange portion away from the insertion portion and connected to the flange portion. The battery cell is electrically connected externally through the blocking member.
H01M 50/184 - Sealing members characterised by their shape or structure
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
H01M 50/188 - Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
H01M 50/548 - Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
A battery cell is provided and includes a housing, at least one electrode assembly, a first electrode terminal, a second electrode terminal, and a first current collecting member. The housing includes a first wall. The at least one electrode assembly is accommodated in the housing, the electrode assembly includes a body portion, a first tab, and a second tab; the first electrode terminal and the second electrode terminal are both arranged on the first wall, and the second electrode terminal is electrically connected to the second tab; and the first current collecting member is accommodated in the housing and is configured to electrically connect the first tab and the first electrode terminal. The battery cell can improve the consistency of stress within the electrode assembly, so as to improve the stability and consistency of the charge and discharge performance of the electrode assembly.
The present application provides a battery cell, a preparation method therefor, a secondary battery, and a power consuming device. The battery cell is formed by winding a negative electrode plate, a positive electrode plate, and a separator positioned between the negative electrode plate and the positive electrode plate, wherein the negative electrode plate has a negative electrode curved surface area, and the positive electrode plate has a positive electrode curved surface area; and at least one curved surface area group composed of the negative electrode curved surface area and the positive electrode curved surface area positioned outside and adjacent to the negative electrode curved surface area is included at a corner of the battery cell.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
17.
LITHIUM ION BATTERY WITH IMPROVED ELECTROLYTE SOLUTION VISCOSITY AND CB VALUE AND POWER CONSUMING DEVICE
The present application relates to a lithium ion battery and a power consuming device, the lithium ion battery comprising a positive electrode, a negative electrode and an electrolyte solution, wherein the electrolyte solution has a viscosity c of 1-6 mPa·s at 25° C., as measured in accordance with GB/T10247-2008; and the ratio CB of the lithium intercalation capacity of the negative electrode to the delithiation capacity of the positive electrode is 1.05-1.5. The lithium ion battery has high-rate fast charging capability and good cycling performance.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/02 - Electrodes composed of, or comprising, active material
Embodiments of this application relate to the field of power source control technologies, and disclose a control system and a charging and discharging control system. The control system includes a control circuit and an intermediate computer, where the control circuit includes a pressure sensor, a piezoelectric valve, and a controller; the pressure sensor is configured to collect pressure information; the controller is configured to receive the pressure information collected by the pressure sensor and transmit the pressure information to an intermediate computer; the intermediate computer is configured to transmit the pressure information to an upper computer, receive a preset pressure value generated by the upper computer based on the pressure information, and transmit the preset pressure value to the controller; and the controller is further configured to control the piezoelectric valve based on the preset pressure value.
Embodiments of the present application provides a composite film and a method for the preparation thereof, a battery module, a battery pack, and an electrical device. The method of preparing a composite film includes activating a surface of a polymer film by grafting the polymer film with a polar group on the surface, wherein the polymer film is selected from a polyolefin film or a polyethylene-vinyl acetate film; applying a slurry comprising a modified polymer resin grafted with a polar group to the activated surface of the polymer film to form a slurry coat, wherein the modified polymer resin is selected from a modified polyolefin resin grafted with a polar group or a modified polyethylene-vinyl acetate grafted with a polar group; and heating the slurry coat and the polymer film to transform the slurry coat into a modified polymer resin solid film, thereby obtaining the composite film.
An electrode assembly, a battery cell, a battery, and an electrical apparatus are disclosed. The electrode assembly includes a first electrode plate, the electrode plate includes a current collector and active material layers arranged on the current collector, the active material layer is provided with a plurality of material removal regions at intervals in an extension direction (L) of the first electrode plate, and the material removal region extends in a width direction (Y) of the first electrode plate; the active material layer is provided with a marking portion, a width of the marking portion in the extension direction (L) of the first electrode plate is greater than or equal to a width of the material removal region, and the marking portion spans across the material removal region.
Embodiments of this application provide a battery and an electric apparatus. The battery includes a battery cell group and one or more thermal management components. The battery cell group includes a plurality of battery cells, and the one or more thermal management components are configured to regulate temperature of the battery cell group, where at least two surfaces of the battery cell are thermally connected to the one or more thermal management components.
H01M 10/6557 - Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
Provided are a battery and an electric device. The battery includes multiple battery cells, a box, and a spray mechanism, wherein at least one battery cell among multiple battery cells includes a pressure relief mechanism. The box includes an electrical chamber, a collection chamber, and a first isolation component, wherein the electrical chamber is configured to accommodate the multiple battery cells; the collection chamber is configured to collect emissions from the battery cells arranged with the pressure relief mechanism when the pressure relief mechanism is actuated; the first isolation component is configured to isolate the electrical chamber and the collection chamber; and the first isolation component is provided with a first through hole, wherein the emissions can enter the collection chamber through the first through hole. The spray mechanism is arranged within the collection chamber, wherein the spray mechanism is configured to spray firefighting media into the collection chamber.
H01M 50/383 - Flame arresting or ignition-preventing means
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
This application provides an electrolyte, a sodium-ion battery, a battery module, a battery pack, and an electric apparatus. The electrolyte includes a sodium salt and an organic solvent. The organic solvent includes a fluorinated organic substance, an ether organic substance, and a coordinating organic substance, where the coordinating organic substance includes a plurality of functional groups capable of coordinating with transition metal. The electrolyte provided in this application can improve cycling performance of sodium-ion batteries in high-temperature environments.
H01M 10/0569 - Liquid materials characterised by the solvents
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/054 - Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
H01M 10/0568 - Liquid materials characterised by the solutes
24.
POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND POWER CONSUMING DEVICE
The present application relates to a positive electrode active material comprising a first positive electrode active material, which comprises a substrate of formula (I), wherein the substrate is doped with an element M1: LiA1[NiX1CoY1MnZ1]O2 (I); and a second positive electrode active material, which comprises a substrate of formula (II), wherein the substrate is doped with an element M2: LiA2[NiX2CoY2MnZ2]O2 (II); the average particle size Dv50 of the first positive electrode active material is greater than that of the second positive electrode active material, wherein 0
C01G 53/50 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
A battery and an electric device are disclosed. The battery includes a thermally-conductive member and a battery module. The thermally-conductive member is disposed in a first direction, and the first direction is a length direction of the battery or a moving direction of the electric device with the battery. The battery module includes at least one battery cell, and the battery module is disposed in the first direction. The battery cell includes a plurality of surfaces, the plurality of surfaces including a first surface with the largest area. The battery cell is in thermal-conduction connection with the thermally-conductive member at least via the first surface.
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/258 - Modular batteriesCasings provided with means for assembling
A starting method of an energy storage system is provided. The energy storage system includes at least one energy storage submodule. The energy storage submodule includes a power module and a battery module. The starting method includes: acquiring a first instruction; and controlling the battery module to charge the power module according to the first instruction. Through the starting method, the battery module of the energy storage submodule can be controlled to charge the power module when a power grid is in a completely black state so that the power module can be charged to have the power-on capability, thereby realizing the self-starting of the energy storage submodule and helping to increase the restoration speed of the power grid.
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
This application relates to a tab detection system and a tab detection method. The system includes an image acquisition module and an upper-level controller. The image acquisition module is configured to acquire an image of a tab of a battery cell rolled by a die cutting module, where the image acquisition module is located between the die cutting module and a lamination module. The upper-level controller is configured to determine whether the tab has a defect based on the image of the tab.
A liquid leakage detection method comprises: acquiring an image to be processed of a battery; recognizing the image to be processed to obtain an adapter piece image and a top cover image; and determining whether there is liquid leakage in the battery according to the adapter piece image and the top cover image.
Provided are a battery cell, a battery, and a power consuming device. The battery cell includes: a shell including a plurality of side plates that enclose an end opening of the shell; an electrode assembly arranged in the shell; and an end cap arranged at the end opening, the end cap including a plurality of edge portions that are fixedly connected to an end surface of the end opening and respectively correspond to the plurality of side plates, wherein the plurality of side plates include a first side plate and a second side plate with different thicknesses, and the plurality of edge portions include a first edge portion corresponding to the first side plate and a second edge portion corresponding to the second side plate.
The present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes a pore structure, wherein the carbon material has 3R and 2H phases and satisfies 0
Embodiments of the present application provide a control method and a control device of an energy storage system. The energy storage system is coupled to an energy generation system and a power grid. The energy storage system includes a plurality of energy storage units. The method includes: acquiring discharging power information of the energy generation system, charging power information of the power grid and state information of the energy storage system, the state information of the energy storage system including time information of the energy storage units in a preset depth of discharge (DOD) interval; and determining an energy management strategy of the energy storage system according to the discharging power information of the energy generation system, the charging power information of the power grid and the state information of the energy storage system.
A positive electrode material, and a secondary battery, battery module, battery pack, and electric apparatus including the same are disclosed. The positive electrode material includes an active substance and a binder, and the binder has the following formula:
A positive electrode material, and a secondary battery, battery module, battery pack, and electric apparatus including the same are disclosed. The positive electrode material includes an active substance and a binder, and the binder has the following formula:
A positive electrode material, and a secondary battery, battery module, battery pack, and electric apparatus including the same are disclosed. The positive electrode material includes an active substance and a binder, and the binder has the following formula:
The fluorine-free binder in the positive electrode material not only has good flexibility and cohesiveness but also good NMP solubility and thus is a good substitute for PVDF.
An electrode plate molding device is disclosed, including a conveying mechanism, a cutting mechanism, a first detection mechanism, and a deviation rectification mechanism. The conveying mechanism is configured to convey an electrode plate strip. The cutting mechanism is arranged downstream of the conveying mechanism along a conveying direction of the electrode plate strip. The cutting mechanism is configured to cut the electrode plate strip to form an electrode plate. The first detection mechanism is located upstream of the cutting mechanism along the conveying direction. The first detection mechanism is configured to detect a location of the electrode plate strip along a width direction of the electrode plate strip. The deviation rectification mechanism adjusts relative locations of the electrode plate strip and the cutting mechanism along the width direction in response to a detection result of the first detection mechanism.
This application provides a battery compartment and a battery swapping station. The battery compartment includes a charging device and a control device. The charging device is configured to charge a battery. The control device is connected to the charging device, and the control device is configured to control the charging device to charge the battery.
H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
H01M 50/298 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the wiring of battery packs
35.
COMPOSITE SEPARATOR, PREPARATION METHOD THEREOF AND SECONDARY BATTERY CONTAINING THE COMPOSITE SEPARATOR
Provided are a composite separator, which includes: a first base film, a second base film, and a coating disposes between the first base film and the second base film, a peel force between the first base film and the coating is equal to or higher than 10 N/mm; and/or a peel force between the second base film and the coating is equal to or higher than 10 N/mm. By configuring the composite separator of the present application as a structure of first base film-coating-second base film, the mechanical strength of the composite separator can be effectively maintained, the peeling performance can be ensured, thereby effectively increasing the heat resistance, reducing the influence of thermal effects on the composite separator, and ensuring the safety of the battery over an extended period of use.
H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
Embodiments of this application provide a battery cell, a battery, and an electrical device. The battery cell includes: a shell, having a first wall; a pressure relief mechanism, disposed at the first wall; an electrode lead-out portion, disposed on the shell; an electrode assembly, disposed in the shell, the electrode assembly including a tab; an adapter member, connecting the electrode lead-out portion to the tab; and a gap control portion, disposed in the shell, the gap control portion being configured to be able to restrict the adapter member from shielding a pressure relief hole formed by the pressure relief mechanism in the event of thermal runaway of the battery cell.
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/30 - Arrangements for facilitating escape of gases
H01M 50/531 - Electrode connections inside a battery casing
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
A battery includes a box, and a battery cell and a treatment device accommodated in the box. The treatment device is used for treating exhaust gases discharged from the battery cell into the box, so as to adjust a concentration of a preset gas in the exhaust gases to below a corresponding preset value, where the preset gas is one or a mixture of combustible gases.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A battery cell includes a housing, an electrode assembly, and a current collector member, where the housing has an electrode lead-out member. The electrode assembly is accommodated in the housing and includes tabs. The current collector member is configured to electrically connect the tabs to the electrode lead-out member, where the current collector member is welded to the electrode lead-out member, the current collector member includes a conductive protective layer, and the conductive protective layer is disposed on a side of the current collector member facing away from the electrode lead-out member.
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/534 - Electrode connections inside a battery casing characterised by the material of the leads or tabs
H01M 50/571 - Methods or arrangements for affording protection against corrosionSelection of materials therefor
39.
COMPOSITE POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRIC APPARATUS
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
A battery includes a plurality of battery cells and a thermal management component, where the plurality of battery cells are arranged in a stacked manner along a first direction, each of the battery cells including an electrode assembly; and the thermal management component is provided opposite to the battery cells along the first direction, where the projection of a main body portion of the electrode assembly in a plane perpendicular to the first direction and the projection of the thermal management component adjacent to the main body portion in the plane perpendicular to the first direction are at least partially overlapping.
H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/293 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
Disclosed are a battery cell, a battery, and an electric apparatus. The battery cell includes: a housing having an opening; and an end cover assembly for closing the opening, where the end cover assembly includes an electrode terminal. An electrode assembly, an adapter, and an insulating member are also disposed in the housing. The electrode assembly includes an electrode tab, the adapter is configured to electrically connect the electrode tab and the electrode terminal, and the insulating member is configured to insulate the adapter from the housing. The battery cell, the battery, and the electric apparatus provided in this application can mitigate the thermal failure of the battery cell caused by thermal diffusion during the use of the battery cell, thereby improving the safety performance of the battery cell and the battery to which the battery cell is applied.
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/531 - Electrode connections inside a battery casing
A battery cell, a battery and an electric device are disclosed. The battery cell includes a housing, an electrode assembly, a detection assembly and a protective assembly. The housing includes an accommodation cavity. The electrode assembly is accommodated in the accommodation cavity. The detection assembly is connected to the housing and is used to detect an operation state of the battery cell. The protective assembly protrudes from the housing and is arranged on a same side as the detection assembly so as to protect the detection assembly. The embodiments of the application can effectively improve safety and reliability of the battery cell.
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 50/588 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
H01M 50/60 - Arrangements or processes for filling or topping-up with liquidsArrangements or processes for draining liquids from casings
The present application provides a carbon material and a preparation method therefor, a secondary battery containing same and a power consuming device. The carbon material comprises pore structures, and has two diffraction peaks in a range of 25.5°-27.5° of 2θ in a peak-resolving pattern of an X-ray diffraction pattern of the carbon material. The secondary battery provided by the present application has both a good cycling performance and a dynamic performance.
The present application discloses a lithium-manganese-nickel-containing composite oxide and a preparation method therefor, a positive electrode plate, a battery, and a power consuming device. The lithium-manganese-nickel composite oxide is in a spinel crystal form, and the ratio of the peak intensity I111 of the (111) peak to the peak intensity I400 of the (400) peak in an X-ray diffraction pattern of the lithium-manganese-nickel composite oxide is 2.1≤I111/I400≤3.3, wherein the diffraction angle of the (111) peak is 2θ=18°-19.5°, and the diffraction angle of the (400) peak is 2θ=43.5°-45°. In the above manner, the technical solution of the present application can improve the stability of the positive electrode active material, thereby improving the overall performance of the battery.
A battery includes a battery cell, a functional part and an insulating layer. The battery cell is provided with a pressure-relieving mechanism. The functional part is connected to the battery cell and provided with an avoidance structure, which is configured to avoid materials released by the battery cell through the pressure-relieving mechanism. At least a portion of the insulating layer is arranged within a region of the functional part corresponding to the avoidance structure.
The present application provides a carbonaceous material and a preparation method therefor, and a secondary battery and an electrical device comprising the same. The carbonaceous material has 0.13≤A/B≤0.50, wherein A represents a mass of water vapor adsorbed on the carbonaceous material after a water vapor adsorption test by placing the carbonaceous material under constant temperature and humidity conditions of 25° C. and 100% RH for 100 h, and B represents an initial mass of the carbonaceous material. The present application can simultaneously improve the capacity and initial coulombic efficiency of the carbonaceous material.
This application provides an exhaust device, a battery cell, a battery, and an electricity-consuming device. The exhaust device includes an exhaust body, a first venting member, and a second venting member; the first venting member is disposed on the exhaust body; the second venting member is disposed on the exhaust body and is disposed on a side of the first venting member in a thickness direction of the exhaust body, and the first venting member and the second venting member are configured to allow gas to pass through when gas pressure in the battery cell reaches a first threshold. The exhaust device provided by this application facilitates reducing the risk of electrolyte solution leakage inside the battery cell and ensuring normal pressure relief operation of the battery cell, thus further improving the safety performance of the battery cell.
H01M 50/392 - Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyteArrangements for facilitating escape of gases with means for preventing leakage of electrolyte through vent holes
A coating die head and a coating apparatus including one are provided. The coating die head includes a first die head and a second die head. The first die head includes a first die head body and multiple first lip modules, and the first lip modules are spliced sequentially along a first direction. Each of the first lip modules is detachably connected to the first die head body, each of the first lip modules is provided with a first groove, the first grooves of the plurality of first lip modules are spliced to form a main chamber for storing a slurry, and the first direction is a length direction of the main chamber. In the coating die head, the first lip modules may be replaced or recombined to change the length of the main chamber so that the coating die head is suitable for producing electrode plates with different widths.
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
Embodiments of the present application provides a battery cell, a battery, an electrical device and a method for wrapping around a battery cell with an insulating film. The battery cell includes: an electrode assembly; a housing having an opening configured to accommodate the electrode assembly, where a first wall of the housing is provided with a pressure relief mechanism; an end cover configured to cover the opening; and an insulating film for wrapping around at least the first wall. The insulating film is provided with a weak region corresponding to the pressure relief mechanism. By providing the insulating film with a weak region corresponding to the pressure relief mechanism, due to the low toughness of the weak region, the influence of the insulating film on the actuation of the pressure relief mechanism can be reduced, and the safety of the battery cell can be improved.
A winding and unwinding system includes at least two winding rollers, a roll-changing device, a sensing device, a measuring device, and a controller. The roll-changing device can drive at least two winding rollers to sequentially move to a set position, where the winding roller located at the set position can wind a strip material. The sensing device emits an in-place signal when the winding roller located at the set position rotates one circle. The measuring device is configured to measure a traveling length of the strip material. The controller, upon receiving the in-place signal, determines a winding radius of the winding roller located at the set position based on the traveling length measured by the measuring device, and when the winding radius reaches a preset threshold, controls the roll-changing device to drive another winding roller to move to the set position and get in contact with the strip material.
B65H 26/06 - Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to predetermined lengths of webs
The present application discloses a battery and a power consuming device. The battery includes: a battery cell; a first case body including a first end wall and a first side wall; and a second case body, the second case body and the first case body being connected to each other to jointly enclose a closed space for receiving the battery cell, the second case body including a second end wall, the second end wall being arranged opposite to the first end wall in a first direction, the second end wall having a first side face in a second direction, and the first direction intersecting with the second direction; wherein the first side wall has one end connected to the first end wall and the other end connected to the first side face.
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/262 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks
This application discloses a box, a battery, and an electrical apparatus. The box includes a box body and a heat dissipation assembly. A cavity is provided inside the box body. The heat dissipation assembly includes a heat dissipation plate arranged inside the cavity, and a heat dissipation fin arranged on a side of the heat dissipation plate away from the cavity, the heat dissipation fin intersecting with the heat dissipation plate. The box can greatly increase a heat exchange area between the box and the air through the heat dissipation plate and the heat dissipation fin, thereby enhancing the heat dissipation performance of the box.
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
The present disclosure provides a battery cell, a battery and an electrical apparatus. The battery cell includes a housing comprising a first wall with a through hole; electrode terminal provided on the first wall, each electrode terminal having an end face facing the first wall, and at least a portion of the end face being opposite to the through hole; and a sealing element at least partially surrounding a peripheral side of the through hole, and at least a portion of the sealing element being connected between the end face and the first wall. The sealing element is provided with one of a boss and a groove, at least one of the electrode terminal or the first wall is provided with the other of the boss and the groove, and the boss is fitted with the groove.
This application relates to a battery and an electric apparatus. A ratio of a capacity per unit area of a negative electrode of the battery to a capacity per unit area of a positive electrode of the battery is referred to as an NP ratio. The NP ratio of the battery is greater than or equal to 1.105, allowing the negative electrode potential corresponding to an upper limit of SOC of the battery to be higher than potential for crystalline phase formation, without BMS control or forced charging/discharging. This can alleviate or avoid battery memory effects, enabling maximum utilization of the capacity of the battery and improving energy efficiency of the battery.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
55.
BATTERY CELL, BATTERY AND ELECTRICITY CONSUMPTION DEVICE
Provided are a battery cell, a battery and an electricity consumption device. The battery cell includes: an electrode assembly which includes a body portion and a tab extending from the body portion; a housing configured to accommodate the electrode assembly and provided with a first opening; a first end cover configured to cover the first opening; and a tab support located between the first end cover and the body portion and configured to support the tab, wherein the first end cover is provided with a first clamping structure, the tab support is provided with a second clamping structure, and the first clamping structure is clamped with the second clamping structure. By means of the technical solutions in the embodiments of the present application, the reliability of the battery cell can be improved.
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
The present application provides a battery and a power consuming device. The battery includes: a battery module; and a case having a receiving cavity for receiving the battery module, wherein the case does not extend beyond an upper end face of the battery module in a height direction of the battery. In the technical solution of the present application, the case does not extend beyond the upper end face of the battery module, that is, the case does not completely wrap and enclose the battery module.
H01M 50/244 - Secondary casingsRacksSuspension devicesCarrying devicesHolders characterised by their mounting method
H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
H01M 50/264 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
Embodiments of the present application provides a battery and an electrical device. The battery includes: a box including an electrical chamber; a battery cell accommodated in the electrical chamber, a pressure relief mechanism being disposed on a first wall of the battery cell; and a support component attached to the first wall, the support component being configured so that emissions of the battery cell pass through the support component to be discharged out of the electrical chamber when the pressure relief mechanism is actuated, and the support component being provided with a reinforcing structure. The technical solutions of the present application can improve safety performance of the battery.
The present application provides a safety regulation mechanism and method, a battery system and an electrical apparatus, which can improve the safety performance of a battery. The safety regulation mechanism is configured to perform a safety regulation on a battery. The safety regulation mechanism comprises: a variable voltage generation module and a safety member. The variable voltage generation module is configured to establish a target voltage difference between the safety member and the battery, the target voltage difference causing the safety member to perform the safety regulation on the battery when an abnormality of the battery occurs. Through this solution, the variable voltage generation module in the safety regulation mechanism can actively establish a target voltage difference between the safety member and the battery, and the actively established target voltage difference can be flexibly adjusted according to actual requirements to adapt to different abnormal conditions of the battery. When an abnormality of the battery occurs, the controllable and accurate target voltage difference can cause the safety member to perform the safety regulation on the battery in a timely manner, so as to improve the safety performance of the battery.
A parallel burning system and method are disclosed. The system includes a master host computer, a plurality of slave host computers, and a plurality of burning modules; the master host computer is connected to the plurality of slave host computers. The plurality of slave host computers are connected one to one with the plurality of burning modules, constituting a plurality of burning channels. The plurality of burning modules are connected to a plurality of products to be burned by using different communication modes. The master host computer is used to call the plurality of slave host computers, transmit multiple pieces of burning data corresponding to the plurality of products to be burned to the plurality of burning modules via the plurality of burning channels, and burn the multiple pieces of burning data in parallel by means of the plurality of burning modules to the plurality of products to be burned.
Provided a battery, a method for preparation thereof and an electrical device containing the same, wherein the battery includes a positive electrode plate and an electrolytic solution, the positive electrode plate including a positive electrode current collector and the positive electrode current collector including a conductive layer, and the electrolytic solution includes a first anion and a second anion, the first anion includes an anion selected from hexafluorophosphate anions, the second anion includes one ore more selected from anions shown in Formula 1 and an anion shown in Formula 2. The present application can improve the safety performance of the battery while enabling the battery to have good electrochemical performance.
Provided a battery, a method for preparation thereof and an electrical device containing the same, wherein the battery includes a positive electrode plate and an electrolytic solution, the positive electrode plate including a positive electrode current collector and the positive electrode current collector including a conductive layer, and the electrolytic solution includes a first anion and a second anion, the first anion includes an anion selected from hexafluorophosphate anions, the second anion includes one ore more selected from anions shown in Formula 1 and an anion shown in Formula 2. The present application can improve the safety performance of the battery while enabling the battery to have good electrochemical performance.
A control method or device for performing the method is described. A first battery in the battery heating system needs to be heated. The first battery is controlled to conduct charging and discharging to heat the first battery, where the first battery is discharged to a second battery in the battery heating system so that the first battery is heated by heat generated during the process of discharging the first battery to the second battery and charging the first battery, thereby saving energy for battery heating and reducing the battery heating cost.
B60L 58/24 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
B60L 53/64 - Optimising energy costs, e.g. responding to electricity rates
B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
H01M 10/633 - Control systems characterised by algorithms, flow charts, software details or the like
H01M 10/637 - Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devicesControl systems characterised by control of the internal current flowing through the cells, e.g. by switching
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
62.
ELECTRODE ASSEMBLY, FORMING METHOD AND BATTERY CELL
The present disclosure relates to an electrode assembly, a forming method, a battery cell, a battery and an electrical apparatus. The electrode assembly includes an electrode body; a winding hole arranged to extend through the electrode body in a first direction; and a supporting capsule body provided within the winding hole, configured to support the winding hole, and including a flexible wall and an accommodating cavity surrounded and formed by the flexible wall, wherein at least part of the accommodating cavity is filled with fillers for supporting the accommodating cavity. The winding hole of the electrode assembly provided according to embodiments of the present disclosure is not prone to collapse, improving an operating stability and safety performance of the electrode assembly.
H01M 10/04 - Construction or manufacture in general
63.
AMMONIUM MANGANESE IRON PHOSPHATE PRECURSOR, LITHIUM MANGANESE IRON PHOSPHATE POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, AND SECONDARY BATTERY
A method for preparing the ammonium manganese iron phosphate precursor includes mixing and grinding metal source powder and phosphorus source powder to enable a low-heating-temperature solid-state reaction of each component, and then washing and drying the obtained product to obtain the ammonium manganese iron phosphate precursor, where the metal source includes an iron source, a manganese source and an optional source of a doping element M which represents doping elements at manganese and iron sites, and the phosphorus source includes triammonium phosphate.
C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
64.
CONTROL METHOD OF ENERGY STORAGE SYSTEM AND ENERGY STORAGE SYSTEM
Embodiments of the present application provide a control method of an energy storage system and an energy storage system. The control method includes: acquiring state information of the energy storage system; and determining operating modes of a heat management unit and a fire-fighting unit of the energy storage system according to the state information. According to the technical solutions of the present application, control strategies of the energy storage system can be reasonably adjusted to achieve effective management of the energy storage system and guarantee the security of the energy storage system.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 37/40 - Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
Provided are a domain controller and an energy storage system. The domain controller is applied to the energy storage system. The energy storage system includes an energy storage unit and a non-energy storage unit; the non-energy storage unit includes a thermal management unit and a fire-fighting unit; the non-energy storage unit is used for assisting the energy storage unit; the domain controller integrates a management module of the energy storage unit and a management module of the non-energy storage unit, and is used for managing the non-energy storage unit according to state information of the energy storage unit. A management policy of the energy storage system can be reasonably adjusted, and efficient energy-saving management of the energy storage system is realized.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
A62C 3/16 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
A62C 37/40 - Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
Disclosed is a battery swap station. The battery swap station includes a battery swap operation room and a battery compartment. The battery swap operation room is used for battery replacement of an electrical apparatus. The battery compartment is used for storing and charging batteries, the battery compartment is provided with a communicating opening, the communicating opening communicates the battery swap operation room with the battery compartment, and the communicating opening is used for batteries to get in and out of the battery compartment. By providing the communicating opening, the batteries can conveniently move between the battery swap operation room and the battery compartment, the movement distance of the batteries between the battery swap operation room and the battery compartment is shortened, the process time of the battery swap work is reduced, and the battery swap efficiency is improved. Further provided is a battery swap method.
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
H01M 10/46 - Accumulators structurally combined with charging apparatus
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
67.
LITHIUM SUPPLEMENTING APPARATUS AND LITHIUM SUPPLEMENTING METHOD
The present application provides a lithium supplementing apparatus and a lithium supplementing method, which can efficiently perform lithium supplementing on a battery. The lithium supplement apparatus includes: a plurality of calendering devices for respectively transferring lithium on a plurality of lithium strips to a plurality of first regions distributed on a coating device in a first direction, the first direction being a width direction of a first electrode plate to be subjected to lithium supplementing; the coating device for respectively coating the lithium of the plurality of first regions onto a plurality of second regions corresponding to the plurality of first regions on the first electrode plate; and a segmenting device for segmenting the first electrode plate according to the plurality of second regions, so as to form a plurality of segmented second electrode plates.
Some embodiments of this application provide an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes at least one first electrode plate, where the first electrode plate is bent and includes: a current collector; and an active material layer, disposed on the current collector. The active material layer includes a material-removed region in at least a part of bends of the first electrode plate. The material-removed region extends along a width direction of the first electrode plate. A depth of the material-removed region does not exceed a thickness of the active material layer at which the material-removed region is located.
Disclosed are a transfer apparatus and a battery swap station. The transfer apparatus is configured to transfer batteries, and includes a foundation, a drive mechanism and a lifting member. The foundation is provided with a first matching portion. The drive mechanism is disposed on the foundation. The lifting member is connected to the drive mechanism. The drive mechanism is configured to drive the lifting member to ascend and descend. The lifting member is provided with a second matching portion, the second matching portion and the first matching portion are disposed opposite each other in an ascending and descending direction of the lifting member, and the first matching portion and the second matching portion are configured to match together when the lifting member reaches a predetermined position to limit movement of the lifting member in a direction perpendicular to the ascending and descending direction.
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 53/30 - Constructional details of charging stations
A support assembly, a battery box, a battery, and an electric device are disclosed. The support assembly includes: at least two plate layers, where the at least two plate layers are stacked, and a separating space is provided between adjacent ones of the at least two plate layers; and a support structure disposed in the separating space, where the support structure includes a plurality of cavities, at least some of the cavities extend along a first direction, and the first direction intersects with opposite surfaces of the adjacent plate layers.
H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/262 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks
71.
SODIUM-ION BATTERY, BATTERY, AND ELECTRIC APPARATUS
A sodium-ion battery includes a positive electrode plate, a negative electrode plate, and an ion conductor. The ion conductor is located between the positive electrode plate and the negative electrode plate. The ion conductor is at least in contact with a surface of the negative electrode plate, the ion conductor is configured to conduct sodium ions between the positive electrode plate and the negative electrode plate, and sodium ions conducted to the surface of the negative electrode plate are reduced to sodium metal, where an elastic modulus of the ion conductor is E in GPa, where 0.1≤E≤5.0.
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
A battery cell, a battery, and an electrical device are provided. The battery cell includes an end cover assembly including a cover plate and a second isolation member disposed on the cover plate; an electrode assembly including a main body; and a first isolation member located between the end cover assembly and the main body and configured to limit the main body, wherein the second isolation member is configured to limit the first isolation member.
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/14 - Primary casingsJackets or wrappings for protecting against damage caused by external factors
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
H01M 50/477 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their shape
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
73.
END COVER, BATTERY CELL, BATTERY AND ELECTRICAL DEVICE
An end cover includes: a cover body and a reinforcing portion. The cover body is configured to close an opening of a case of the battery cell, and the cover body has a first surface along a thickness direction of the cover body. The reinforcing portion protrudes from the first surface, and the reinforcing portion is configured to reinforce the cover body.
A battery cell, a battery, and an electric apparatus are described. The battery cell includes a housing and at least one electrode assembly. The housing includes a first wall and a second wall, where the first wall and the second wall enclose a first accommodation space and at least one second accommodation space. The at least one electrode assembly includes a first electrode assembly arranged in the first accommodation space; where the first wall is bent along a circumferential direction of the first electrode assembly, the second wall is connected to an end of the first wall along the circumferential direction, a closed-loop virtual curved surface on which the first wall is located defines the first accommodation space, and a closed-loop virtual curved surface on which the first wall is located and the second wall define the at least one second accommodation space.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 10/64 - Heating or coolingTemperature control characterised by the shape of the cells
H01M 10/655 - Solid structures for heat exchange or heat conduction
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
75.
BMS SLEEP WAKE-UP CIRCUIT AND METHOD, BMS, AND ELECTRIC DEVICE
A BMS sleep wake-up circuit and method, a BMS, and an electric device are provided. The BMS sleep wake-up circuit is provided with an enabling circuit. When a charging device is connected, in response to the charging device being plugged in, the enabling circuit generates an enabling level to wake up a BMS, and outputs a self-locking signal through a control circuit, so that a wake-up chip keeps the BMS awake. Additionally, under the condition that the charging device remains plugged in, after the self-locking signal is canceled, the wake-up chip is turned off, so that the BMS can enter a sleeping state.
The present application provides an electrode plate, a battery cell, a battery, and an electrical apparatus, where the electrode plate comprises: a current collector comprising a tab region, a thinned region, and a non-thinned region, the thinned region being located between the non-thinned region and the tab region; and a film layer arranged on the thinned region and the non-thinned region, where the film layer comprises a first active material arranged on the thinned region and a second active material arranged on the non-thinned region, the thickness of the film layer of the thinned region is smaller than the thickness of the film layer of the non-thinned region, and the specific surface area of the first active material is larger than the specific surface area of the second active material.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/054 - Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
A battery includes a battery cell and a protective component. A first end surface of the battery cell is provided with a first pressure relief mechanism. The protective component is disposed opposite to the first end surface, where the protective component includes an air guide structure, the air guide structure includes an air guide cavity, and the air guide cavity is provided with an opening, the opening being disposed toward the first pressure relief mechanism.
H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/271 - Lids or covers for the racks or secondary casings
H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
The present application discloses a lithium-ion secondary battery. The lithium-ion secondary battery. The lithium-ion secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte. The positive electrode plate includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes nickel, cobalt, and manganese material. A ratio of nickel, cobalt and manganese is a:b:c, a≥0.5, 0
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/02 - Electrodes composed of, or comprising, active material
Provided are a battery cell, battery, and electrical device, relating to the technology field of batteries, which include a shell, an electrode assembly, and an end cap. The shell is provided with an opening; the electrode assembly is accommodated within the shell; the end cap is arranged at one end of the shell along a first direction and closing the opening, wherein the end cap include a cover body and a connecting part; the connecting part is arranged around an outer side of the cover body; and the connecting part is sealingly connected to the shell. Along the first direction, the cover body is provided with a first outer surface away from the electrode assembly; the first outer surface is a surface of the end cap farthest from the electrode assembly; and the connecting part is closer to the electrode assembly than the first outer surface.
H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
This application relates to a battery and an electric device. The battery includes a battery module, where the battery module includes at least one battery cell, and the battery module is disposed in a first direction, the first direction being a length direction of the battery or a moving direction of the electric device with the battery. The battery cell includes a plurality of surfaces, where the plurality of surfaces includes a first surface with the largest area, and the plurality of surfaces further include two second surfaces opposite each other, the two second surfaces being both connected to the first surface. The battery cell further includes an electrode terminal, where the electrode terminal is disposed on the first surface or at least one of the second surfaces.
H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/258 - Modular batteriesCasings provided with means for assembling
H01M 50/547 - Terminals characterised by the disposition of the terminals on the cells
The application provides a winding device and a winding method. The winding device includes a feeding mechanism and at least two winding members, and the feeding mechanism is used to provide an electrode sheet and a separation membrane. The winding device is provided with a winding station and a non-winding station, and each of the winding members is movable between the winding station and the non-winding station. When one of the winding members winds the electrode sheet and the separation membrane for a preset amount of turns at the winding station, said one of the winding members moves from the winding station to the non-winding station. Said one of the winding members releases a part of the separation membrane wound on said one of the winding members when said another of the winding members winds the electrode sheet and the separation membrane.
The present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes a pore structure, the carbon material has a total pore volume denoted as V and a powder compaction density under a pressure of 50,000 N denoted as P, and the carbon material satisfies: 4.1×10−3≤V×P≤12.0×10−3, in which the total pore volume V of the carbon material has an unit of cm3/g and the powder compaction density P under a pressure of 50,000 N has an unit of g/cm3. The carbon material provided in the present application can make the secondary battery have high initial columbic efficiency, high energy density and also good cycling performance and storage performance.
This application provides a battery cell, a battery, and an electric apparatus. The battery cell includes a housing, an electrode terminal, and a current collector. The housing has a first wall and an accommodating cavity. The first wall has a first through hole enabling communication between the accommodating cavity and the outside of the housing. The electrode terminal includes a base and a connection portion connected to the base. The base is located on a side of the first wall back away from the accommodating cavity. At least part of the connection portion is located in the first through hole. The current collector includes a body portion and a protruding portion connected to the body portion. The protruding portion protrudes towards the first wall, and the protruding portion is configured to be connected to the connection portion.
The embodiment of the present disclosure provides a battery cell, a battery, and an electrical equipment. The battery cell includes: a shell with a first wall; an electrode assembly, arranged inside the shell; and an electrode leading-out component, installed on the first wall for leading out electrical energy from the electrode assembly, wherein the electrode leading-out component includes a first surface, wherein the plane of the first surface intersects with the first wall, and the first surface is used to connect with the busbar component. The battery composed of battery cells has a higher assembly efficiency.
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/505 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing comprising a single busbar
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/553 - Terminals adapted for prismatic, pouch or rectangular cells
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
85.
HOUSING OF BATTERY, BATTERY AND POWER CONSUMPTION DEVICE
A housing of a battery includes a support plate and a plurality of side beams. The side beams are connected to the support plate and enclose with the support plate to form an accommodating space. At least one of the side beams includes a beam body and a buffer portion. The buffer portion is provided to protrude from the beam body toward the accommodating space and extend in a length direction of the beam body. The buffer portion is located on a side of the beam body away from the support plate.
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 10/6555 - Rods or plates arranged between the cells
86.
POSITIVE ELECTRODE MATERIAL COMPOSITION, METHOD FOR THE PREPARATION THEREOF, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY AND ELECTRICAL DEVICE CONTAINING THE SAME
Provided are a positive electrode material composition, a method for the preparation thereof and a positive electrode plate, a secondary battery and an electrical device containing the same. The positive electrode material composition comprises a positive electrode active material with a core-shell structure and an organopolysiloxane compound, wherein said core comprises Li1+xMn1-yAyP1-zRzO4; and said shell comprises a first cladding layer covering said core and a second cladding layer covering said first cladding layer. The positive electrode material composition of the present application enables the secondary battery to have a higher energy density, while having improved cycle performance, safety performance and/or rate performance.
C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
A battery cell battery cell includes a casing, an electrode assembly, and an electrode terminal. The casing includes a peripheral wall and an end wall, wherein the peripheral wall is arranged around the end wall; along an extension direction of the peripheral wall, at least one end of the peripheral wall is provided with the end wall. The electrode assembly is housed within the casing. The electrode terminal is arranged on the peripheral wall, wherein the electrode terminal is electrically connected to the electrode assembly.
A separator includes a base film and a coating disposed on a surface of at least one side of the base film. The coating includes a central region disposed in a length direction of the base film with a center line of the base film in a width direction as a center line, and an edge region disposed outside the central region. The central region includes a region A having a coating thickness of D1, and the edge region includes a first region having a thickness of D0, where D1
This application relates to an electrode plate structure. With a ratio CB1 of a surface loading of a second cathode material layer to a surface loading of a first anode material layer controlled to be 1:(1.01-1.3) and a ratio CB2 of a surface loading of a first cathode material layer to a surface loading of a second anode material layer controlled to be 1:(1.03-1.4), the surface loadings of the first anode material layer and second anode material layer are slightly higher than the surface loadings of the corresponding second cathode material layer and first cathode material layer, so that during cycling, especially at a high rate, the first anode material layer and the second anode material layer can provide sufficient lithiation capacity, avoiding lithium precipitation on the anode. This application also implements a differential design for the material layers on two sides of the electrode plates.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
90.
DEVICE COMMUNICATION METHOD AND SYSTEM, ELECTRIC DEVICE, CHARGING DEVICE, AND STORAGE MEDIUM
A device communication method includes: establishing, by an electric device, a communication connection with a charging device; and performing, by the electric device, a function negotiation with the charging device through the communication connection. A service function of the function negotiation includes a charging and discharging function and/or a discharging function.
This application discloses an end cover assembly, a battery cell, a battery, and an electric apparatus. The end cover assembly includes a cover body, a first rib, and a second rib, where the cover body is provided with a pressure relief mechanism, the first rib and the second rib are both disposed on the cover body, the first rib is disposed around the pressure relief mechanism, and the second rib is disposed on a side of the first rib facing away from the pressure relief mechanism. With the foregoing technical solution used, use safety of the battery cell is effectively improved.
An electrolyte solution, a battery module, a battery pack, and an electrical device are disclosed. The electrolyte solution includes a solvent and a fluorine-containing lithium salt. An electrochemical stability coefficient of the electrolyte solution is x=SF/(SF+4SH), ranging from 0.18 to 0.6, optionally 0.25 to 0.55, where SF and SH are measurable by a specified measurement method. The secondary battery that employs the electrolyte solution is of high electrochemical stability, and the electrolyte solution improves the storage performance and cycle performance of the secondary battery.
H01M 10/0567 - Liquid materials characterised by the additives
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
93.
SILICON-CARBON COMPOSITE MATERIAL AND NEGATIVE ELECTRODE PLATE COMPRISING SAME
The present application relates to a silicon-carbon composite material in the form of particles comprising a porous carbon skeleton, a silicon-containing deposition layer, and a carbon-containing coating layer, wherein the silicon-containing deposition layer is in pores of the porous carbon skeleton, the carbon-containing coating layer is on the silicon-containing deposition layer and/or on the surface of the particles, and the silicon-carbon composite material has an oil absorption number of 35 mL/100 g to 80 mL/100 g. The silicon-carbon composite material of the present application has a high energy density and an improved cycle life. In addition, the present application further relates to a negative electrode plate comprising the material, a secondary battery, a battery module, a battery pack, and a power consuming device.
The present application provides a multi-controller system and a coding method thereof, an electrical apparatus, a control device, a computer-readable storage medium, and a computer program product. The multi-controller system includes a master controller, a first slave controller and a second slave controller, the master controller being connected to the first slave controller through a first trigger signal line, and the first slave controller and the second slave controller being connected through a second trigger signal line; the master controller is configured to: send a first trigger signal to the first slave controller through the first trigger signal line, and code the first slave controller; the first slave controller is configured to: send a second trigger signal to the second slave controller through the second trigger signal line in response to receiving the first trigger signal, so that the second slave controller is able to be coded.
A battery cell includes a housing and an insulator. The housing is provided with a pressure relief area, and the pressure relief area is configured to release pressure inside the battery cell. The insulator wraps around the housing and covers the pressure relief area. The insulator is provided with a weak part, and the weak part is configured to be broken when the pressure relief area opens.
A battery comprises: a box body assembly that is internally provided with a first cavity and a venting channel which are in communication with each other, the box body assembly being provided with a first pressure relief component; a battery cell provided in the box body assembly and located outside the first cavity, the battery cell having a second pressure relief component configured to release discharges of the battery cell into the venting channel; and a first blocking component provided in the first cavity and configured to prolong a path for the discharges to reach the first pressure relief component from the first cavity.
A battery related shell, a battery cell, a battery, and an electrical device are disclosed. The shell includes a frame and two end caps. The frame includes two openings opposite to each other along a first direction. The two end caps are connected to two ends of the frame respectively along the first direction. The two end caps respectively seal the two openings. The two end caps and the frame together define an accommodation space configured to accommodate an electrode assembly. The two openings created on the frame make it convenient to put the electrode assembly into the shell, thereby reducing the risk that the electrode assembly is damaged by excessive friction between the electrode assembly and an inner side of the frame during encasing of the electrode assembly, and improving the yield rate of encasing of the electrode assembly.
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
A battery cell includes: a housing having a first wall and an inner cavity; an electrode assembly arranged in the inner cavity; electrode terminals arranged on the housing and electrically connected to the electrode assembly; and a first pressure relief component arranged on the first wall, wherein the first pressure relief component has a first weakened portion, and the first weakened portion is a reduced thickness portion and is configured to be opened when a first preset condition is met within the housing.
H01M 50/358 - External gas exhaust passages located on the battery cover or case
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
A battery cell includes a casing, an electrode assembly, an end cover assembly and a support member. The casing has an opening. The electrode assembly has a main body and tabs protruding from the main body. The electrode assembly is accommodated in the casing. The end cover assembly covers the opening. The support member is located in the casing, and the tabs are bent around the support member. In the above, the support member is connected to the end cover assembly, to fix the support member. The battery cell is provided therein with the support member, and the tabs are bent around the support member. In addition, the support member is connected to the end cover assembly.
The disclosure relates to an interface circuit, an electric device, a detection method, a system, a media, and a program product. The charging device interface circuit includes a charging interface and a voltage divider circuit coupled to each other. The voltage divider circuit is coupled with a power supply. The voltage divider circuit performs voltage division of an output voltage of the power supply and outputs a detection signal. The detection signal output by the voltage divider circuit when the charging interface is coupled to a charging device is different from the detection signal output by the voltage divider circuit when the charging interface is not coupled to a charging device. By applying this disclosure, it is possible to detect whether the charging device is coupled to the electric device.
B60L 53/30 - Constructional details of charging stations
B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
patents
