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BATTERY MODULE FOR MODULAR HIGH-VOLTAGE BATTERY SYSTEM

Absstract of: US2024072382A1

A battery module for a modular high-voltage battery system comprises: electrochemical cells; a housing of an electrically insulating material, the housing enclosing the electrochemical cells; and a first connector at an outside surface of the housing, the first connector electrically connected to the electrochemical cells, the first connector comprising an insulating cover and a terminal accessible only through an opening in the insulating cover, the first connector configured for mating with a first electrical interconnect having a busbar to extend into the opening and contact the terminal.

BATTERY FOR A MOTOR VEHICLE, AND MOTOR VEHICLE

Absstract of: CN119452512A

The invention relates to a battery (10) for a motor vehicle, comprising a plurality of battery cells (12) and a battery housing (14), which encloses a housing interior (16), in which the battery cells (12) are accommodated, and which has an orifice plate (20) on which the battery cells (12) rest, according to the invention, the orifice plate (20) has, for each battery cell (12), an associated vent opening (28) on which the associated battery cell (12) rests and via which the gas discharged from the respective associated battery cell (12) can be discharged from the housing interior (16).

IMERSION COOLING SYSTEM AND METHOD OF OPERATING SUCH

Absstract of: EP4583241A1

An immersion cooling system (100) for immersion cooling of a plurality of battery cells of a battery (114) of an electric vehicle using a dielectric cooling liquid is disclosed. The immersion cooling system (100) comprising: a fluid circuit (102) configured for at least the circulation of the dielectric cooling to, and from, the battery (114), the fluid circuit (102) having a first branch (108a) and a second branch (108b), the first branch (108a) being parallel to the second branch (108b); a first pump (104) positioned along the first branch (108a); a second pump (106) and a valve (116) positioned along the second branch (108b), the second pump (106) being, relative to the first pump (104), a high-flow, low-pressure pump; an inlet sensor (124) position at or around an inlet of the battery (114); an outlet sensor (126) positioned at or around an outlet of the battery (114); at least one processor (130); and a memory device (132) coupled to the at least one processor (130), the memory device (132) including instructions that when executed by the at least one processor (130) cause one or more of the at least one processor (130) to: determine, using at least information from one or more of the inlet sensor (124) and the outlet sensor (126), whether at least one characteristic of the dielectric cooling liquid satisfies a threshold value; generate one or more signals, if the at least one characteristic of the dielectric cooling liquid does not satisfy the threshold value, to operat

MOTOR DRIVE SYSTEM WITH EXTERNAL DISCHARGE FUNCTION, AND VEHICLE INCLUDING SAME

Absstract of: EP4582283A1

The disclosure relates to a motor drive system with an external discharge function, and a vehicle including same. The motor drive system provides, through an alternating current output interface (230), an alternating current output for external discharge, and the alternating current output interface (230) includes a first output terminal (280) and a second output terminal (290). The motor drive system includes: a battery module (110), a bridge arm module (120), an inductor module (210), a capacitor module (220), and a switching module. The battery module (110) has a battery voltage, and is provided with a battery output terminal (X) at an intermediate voltage position of the battery voltage, and the battery output terminal (X) is connected to the first output terminal (280); the bridge arm module (120) is connected in parallel with the battery module (110); one terminal of the inductor module (210) is connected to the second output terminal (290), and the other terminal is connected to the bridge arm module (120); and one terminal of the capacitor module (220) is connected to the second output terminal (290), and the other terminal of the capacitor module (220) is connected to the first output terminal (280). In the disclosure, when a vehicle is not equipped with an OBC, the external discharge function of the vehicle is implemented by controlling turn-on/turn-off of the bridge arm module (120) and the switching module.

METHOD OF MANUFACTURING ELECTRODE, COMPOSITE ELECTRODE, ELECTROCHEMICAL ELEMENT, AND APPARATUS FOR MANUFACTURING ELECTRODE

Absstract of: EP4583177A1

A method of manufacturing an electrode includes applying a first liquid composition containing a first solvent and polymerizable compounds to a substrate, reacting the first liquid composition, removing the first solvent to form an insulating resin layer, applying a second liquid composition containing an active material and a second solvent to the substrate, and removing the second solvent composition to form an electrode composite layer, wherein the removing the first solvent and the removing the second solvent are conducted at the same time.

MONITORING SYSTEM AND OPERATING METHOD THEREFOR

Absstract of: EP4582820A1

A monitoring system according to an embodiment disclosed in this document may include a data management unit configured to acquire drive data of a motor associated with a battery manufacturing device over time and extract a parameter representing a characteristic of the drive data by applying the drive data to an artificial intelligence model, and a controller configured to generate reference information for managing the state of the motor based on the parameter.

BATTERY MODULE WITH SEALED STRUCTURE

Absstract of: EP4583287A1

The present disclosure relates to a battery module. The battery module according to an embodiment of the present disclosure may include first and second end plates disposed on both sides of a plurality of battery assemblies and a support bar connecting the first and second end plates.

CASE, BATTERY, AND ELECTRIC DEVICE

Absstract of: EP4583211A1

The present application relates to the technical field of batteries, and provides a case, a battery, and an electric device. The case comprises a frame, a partition beam, and reinforcing parts. The partition beam is provided in the frame, and is configured to divide an accommodating space into a first accommodating space and a second accommodating space, the first accommodating space being used for accommodating battery cells. The reinforcing parts are provided in the second accommodating space. The reinforcing parts are arranged between the partition beam and the frame, and are used for transmitting force between the partition beam and the frame. By arranging the reinforcing parts between the frame and the partition beam, the reinforcing parts can provide a support for the partition beam, so that when the battery cells accommodated in the first accommodating space displace or expand, the force applied to the partition beam by the battery cells can be transmitted to the frame by means of the reinforcing parts, so as to effectively improve the deformation resistance of the partition beam under the pressing of the battery cells, thereby improving the service life and the use safety of the battery.

DRYING APPARATUS AND ELECTRODE SHEET MANUFACTURING DEVICE

Absstract of: EP4582190A1

A drying apparatus, comprising an oven (100) and control units (200), wherein the oven is formed by assembling a plurality of oven modules (10), each oven module comprises an oven body (11) and an air blowing apparatus (12), the air blowing apparatus is at least partially arranged in the oven body, and the air blowing apparatus is used for blowing air onto a material strip in the oven body. The plurality of control units correspond to the plurality of oven modules on a one-to-one basis, and each control unit is used for controlling an air output parameter of an air blowing apparatus of a corresponding oven module. Further disclosed is an electrode sheet manufacturing device. By means of the apparatus, the quality of a battery can be improved while reducing the cost.

Stack for electrochemical cell

Absstract of: GB2637042A

A stack for an electrochemical cell has a laminate structure comprising a first electrode layer 2 between a first gel separator layer 3 and a second gel separator layer 4. The first and second gel separator layers each extend beyond a peripheral edge of the first electrode layer and are adhered to one another by a heat-seal 6 adjacent to opposing edges of the first electrode layer. The two gel separator layers may be adhered to each other via a heat-sealed border region 7 extending around the entire periphery of the first electrode layer. The heat-sealed border may be discontinuous and include at least one unsealed portion. The first electrode may be a gel cathode layer or a gel anode layer. The gel layers may include a copolymer of polyvinylidene fluoride (PVdF) and hexafluoropropylene (HFP) and may further include a linear or cyclic carbonate liquid electrolyte and a lithium salt. A secondary electrochemical cell may include a second electrode layer 13 in contact with the first gel separator layer of the stack. Methods of forming the stack may include edge lamination of the gel separator layers using an impulse sealer to apply a temperature of 70 to 90 °C.

Stack for an electrochemical cell

Absstract of: GB2637043A

A stack for an electrochemical cell has a laminate structure including a solid solvent-cast electrode layer 14, 15 between a first gel separator layer 17 and a second gel separator layer 18; and a gel electrode layer 12 in contact with the first gel separator layer. The gel layers may for example comprise polyvinylidene difluoride (PVdF) or a copolymer of PVdF and hexafluoropropylene (PVdF-HFP) as the gelling polymer. The solid solvent cast electrode layer may be an anode layer and the gel electrode layer may be a cathode layer. The gel electrode layer may further comprise a linear or cyclic carbonate liquid electrolyte, one or more lithium salts and an electrochemically active material. The first and second gel separator layers may be adhered to one another by a heat-sealed border region which extends around the periphery of the solid solvent cast electrode layer. The solid solvent cast electrode layer may be impregnated with a free liquid electrolyte, for example comprising a linear or cyclic carbonate liquid electrolyte and one or more lithium salts. The electrochemical cell may comprise a second gel electrode layer in contact with the second gel separator layer.

METHOD AND APPARATUS FOR SETTING BATTERY PACK IDENTIFIER

Absstract of: EP4583359A1

A method and apparatus for setting a battery pack identifier may be provided. The apparatus for setting a battery pack identifier of a battery pack may include, a first supply configured to supply a power source voltage through a first pin; a second supply configured to supply a ground voltage through a second pin; a plurality of analog-to-digital converters configured to have an input pin and an output pin, and configured to transmit a voltage corresponding to a voltage input through the input pin to the output pin; a plurality of jumper wiring configured to connect input pins of the plurality of analog-to-digital converters with the first pin or the second pin, respectively; and a controller configured to set the battery pack identifier of the battery pack based on the voltages received through the output pin of each of the plurality of analog-to-digital converters.

SEPARATOR FILM CUTTER AND ELECTRODE ASSEMBLY APPARATUS INCLUDING THE SAME

Absstract of: EP4583233A1

A separator film cutter includes a melt cutting unit configured to produce a melting portion by locally heating a separator film, with a tensile force being applied to opposite ends of the separator film, to cut the separator film, a driver configured to drive the melt cutting unit to selectively contact the separator film, and a controller configured to control the driver to heat the separator film by causing the separator film and the melt cutting unit to be in contact for a predetermined time.

BATTERY ASSEMBLY

Absstract of: EP4583314A1

The present disclosure provides a battery assembly that solves the problem of low space utilization of battery assembly in the prior art. The battery assembly includes a circuit board, a male connector, a female connector, a wire, and a battery. The wire is electrically connected to the male connector. The battery includes a step structure. The circuit board is provided on the step structure and is electrically connected to the battery. The female connector is provided on the circuit board and is electrically connected to the circuit board, and the male connector is capable of being plugged into the female connector. When the male connector is plugged into the female connector, the female connector is electrically connected to the male connector. The present disclosure may effectively improve space utilization and simplify the assembly process of battery assembly.

BATTERY CRUSHING METHOD AND BATTERY CRUSHING SYSTEM

Absstract of: EP4582569A2

A battery crushing method includes cooling a battery, which is kept in a gaseous environment, to an electric discharge temperature ranging from -60 °C to 0 °C; and after cooling, crushing the battery at a crushing temperature to form a plurality of crushed particles. The crushing temperature is not greater than a temperature ranging from -10 °C to 10 °C.

PACKAGING BAG, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE

Absstract of: EP4583265A1

This application relates to a pouch, an electrochemical device, and an electronic device. The pouch includes a first pouch body and a second pouch body connected to each other. A first cavity is recessed in the first pouch body. The second pouch body covers the first cavity so that the first pouch body and the second pouch body jointly close around to form the accommodation cavity. The first pouch body includes a first wall portion oriented toward the second pouch body. The first wall portion includes a first wall face oriented toward the accommodation cavity and a third wall face oriented away from the accommodation cavity. A thickness of the first wall portion is H1. The second pouch body includes a second wall portion oriented toward the first pouch body. The second wall portion includes a second wall face oriented toward the accommodation cavity and a fourth wall face oriented away from the accommodation cavity. A thickness of the second wall portion is H2, satisfying: H2 < H1. The thickness H2 of the second wall portion is set to be less than the thickness H1 of the first wall portion, and the first cavity is created in the relatively thick first pouch body by stamping, thereby not only meeting the requirement on the indentation capability of the pouch, but also increasing the accommodation space of the accommodation cavity, and improving the capacity and energy density of the electrochemical device.

POLE PIECE, ELECTROCHEMICAL DEVICE, AND ELECTRONIC DEVICE

Absstract of: EP4583182A1

Some embodiments of this application relate to the field of battery technologies, and in particular, disclose an electrode plate, an electrochemical apparatus, and an electronic device. The electrode plate includes a current collector, an active substance layer, a tab, and a first insulation adhesive layer. The active substance layer is disposed on surface of the current collector, and the active substance layer is provided with a first groove and a second groove running through the bottom of the first groove to the current collector. The current collector is partially exposed within the second groove. The tab is accommodated in the first groove and the second groove and connected to the current collector. The first insulation adhesive layer is disposed on a side of the first groove facing away from the current collector, and projections of the first insulation adhesive layer and the tab along a thickness direction of the current collector are located within the first groove of the active substance layer. In this way, some embodiments of this application can reduce influence of the first insulation adhesive layer on overall thickness of the electrode plate, improve the thickness consistency of a battery cell, and enhance fast charging and cycling performance of the battery cell.

NEGATIVE ELECTRODE SHEET AND BATTERY

Absstract of: EP4583192A2

The present invention provides a negative electrode sheet and a battery. The negative electrode sheet comprises a negative current collector and a negative electrode film provided on at least one surface of the negative current collector and comprising a negative active material, and the negative electrode film satisfies: 4≤P×(30-Dv50)/2+2×(10-M)≤20. P represents a porosity of the negative electrode film; Dv50 represents a volume median particle diameter of the negative active material, and a unit is µm; M represents a capacity per unit area of a negative electrode film, and a unit is mAh/cm<2>. The negative electrode sheet of the present invention has the characteristics of excellent dynamics performance, and the battery of the present invention also has the characteristics of excellent dynamics performance, long cycle life and high energy density at the same time.

ALUMINUM ALLOY SHEET FOR TABS

Absstract of: EP4582575A1

One aspect of the present disclosure provides an aluminum alloy sheet for a tab including 0.10 mass% or more and 0.60 mass% or less of Si, 0.20 mass% or more and 0.70 mass% or less of Fe, 0.10 mass% or more and 0.40 mass% or less of Cu, 0.5 mass% or more and 1.2 mass% or less of Mn, 1.1 mass% or more and 4.0 mass% or less of Mg, and a balance consisting of or including Al and inevitable impurities. A sheet thickness t (mm) and a tensile strength σB_0° (MPa) in a 0-degree direction with respect to a rolling direction satisfy the following formula (1): 2.7×t−0.45×σB_0°≥67

PROCESS FOR THE PREPARATION OF SILICON-CONTAINING COMPOSITE PARTICLES

Absstract of: WO2025078826A1

The invention relates to a process for preparing composite particles, the process comprising the steps of: (a) providing a plurality of porous particles in a pressure reactor; (b) contacting the plurality of porous particles with a silicon precursor gas at conditions effective to cause deposition of silicon in the pores of the porous particles to provide composite particles comprising a porous particle framework and elemental silicon within the pores of the porous particle framework.

SECONDARY BATTERY MODULE

Absstract of: EP4583278A1

A secondary battery module may include a plurality of cylindrical cells, a cell holder holding the plurality of cylindrical cells, and a first case accommodating the plurality of cylindrical cells and the cell holder. The first case may include an open side, wherein potting material may be applied to at least a portion of top surfaces of the plurality of cylindrical cells and a surface of the cell holder to seal the plurality of cylindrical cells and the cell holder.

BATTERY SEPARATOR AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY

Absstract of: EP4583295A1

A battery separator and a preparation method therefor, and a secondary battery, relating to the technical field of battery separators. The battery separator comprises: a base film; and an inorganic coating provided on at least one surface of the base film. A contact ratio k of inorganic particles to the base film in the longitudinal section of the battery separator is 15-90%; and the relationship among the contact ratio k, air permeability A1 of the base film and air permeability A2 of the coating per unit thickness meets: A1*k≥A2. The separator is improved to a certain extent in peel strength, puncture strength and air permeability, and the battery separator with both safety and high ion permeability is provided.

NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT

Absstract of: EP4583230A1

A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a negative electrode including a negative active material layer; and a nonaqueous electrolyte containing an unsaturated cyclic carbonate and a P-O bond-containing fluorophosphate, in which the negative active material layer has a BET specific surface area of 0.80 m²/g or more and 1.5 m²/g or less, and the ratio of the content of the unsaturated cyclic carbonate to the total content of the unsaturated cyclic carbonate and the P-O bond-containing fluorophosphate is 0.60 or more and less than 1.0 on a mole basis.

SMART BATTERY MANAGEMENT SYSTEM AND METHOD, AND ELECTRONIC DEVICE AND READABLE STORAGE MEDIUM

Absstract of: EP4583356A1

The present application belongs to the field of smart batteries. Disclosed are a smart battery management system and method, and an electronic device and a readable storage medium. The smart battery management system of the present application comprises a BCMU component and a plurality of power source operation groups, wherein the power source operation groups are connected to the BCMU component, the power source operation groups are used for being connected to a busbar in parallel, each power source operation group comprises a bidirectional DCDC module and a plurality of battery modules, and the battery modules are connected to the BCMU component; and the battery modules are connected to an input end of the bidirectional DCDC module in parallel, an output end of the bidirectional DCDC module is used for being connected to the busbar, and the battery modules reuse the bidirectional DCDC module by means of polling.

ENERGY STORAGE DEVICE

Nº publicación: EP4583281A1 09/07/2025

Applicant:

CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD [HK]
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Absstract of: EP4583281A1

Embodiments of the present application provide an energy storage apparatus, belonging to the technical field of energy storage apparatuses. The energy storage apparatus comprises an energy storage box body and a plurality of batteries, the energy storage box body having a battery compartment, and the battery compartment having an opening in a first direction; the plurality of batteries being provided within the battery compartment, and one battery being arranged in the battery compartment along the first direction. The energy storage apparatus according to the embodiments of the present application has high energy density.