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BATTERY PACK

Resumen de: EP4645553A1

A battery pack capable of lashing a battery group without using a side rail that connects a pair of end plates together is obtained. A battery pack 1 of the present invention has a battery main body 20 having a battery group 30 in which a plurality of single batteries 31 have been laminated and a pair of end plates 40 that are respectively disposed at both ends of the battery group 30 in a lamination direction, an installation portion in which the battery main body 20 is installed, and brackets 50 that fix the battery main body 20 to the installation portion, and the brackets 50 hold the battery main body 20 in a state of being pressurized in the lamination direction.

BATTERY COOLING DEVICE

Resumen de: EP4645529A1

A battery cooling device includes: a battery case with an accommodation portion accommodating a battery module; an inlet port that is provided at a central portion in a first direction in the battery case and on one end side in a second direction and into which cooling liquid supplied from a pump is introduced; discharge ports discharging, on an upper side of each of a plurality of the cells, the cooling liquid introduced into the inlet port; and a communication path causing the inlet port to communicate with the discharge ports. The communication path includes a branching flow path including first and second branching flow paths. The first branching flow path communicates with the inlet port and branches to one end side of the first direction. The second branching flow path communicates with the inlet port and branches to another end side of the first direction.

COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME AND USE OF SAME

Resumen de: EP4645466A1

The present invention provides a composite particle, which includes a carbon material and silicon, wherein electrical resistivity is reduced. The present invention includes a composite particle including a carbon material and silicon, wherein a He true density by dry density measurement using helium gas is 1.85 g/cm³ or more and 2.10 g/cm³ or less, a silicon content is 30 mass% or more and 80 mass% or less, an oxygen content is 4.0 mass% or less, and a BET specific surface area is 0.5 m²/g or more and 30.0 m²/g or less.

BATTERY DEVICE AND ELASTIC CONDUCTIVE ELEMENT THEREOF

Resumen de: EP4645546A1

A battery device (100) and an elastic conductive element (34) thereof are provided. The elastic conductive element (34) includes a plate body portion (341), a plurality of bend portions (342), a plurality of connecting portions (343), and a plurality of end portions (344). The bend portions (342) extend from the plate body portion (341). The connecting portions (343) respectively extend from the bend portions (342). Each of the connecting portions (343) and the plate body portion (341) are spaced apart from each other, so as to have a first height change (H1). The end portions (344) respectively extend from the connecting portions (343), so as to elastically abut against a corresponding one of the electric cores through the connecting portions (343).

A BATTERY PACK, A VEHICLE AND A METHOD FOR MANUFACTURING A BATTERY PACK

Resumen de: EP4645543A1

The disclosure relates to a battery pack (1) comprising a plurality of electrochemical battery cells (2), the battery pack further comprising a bottom support member (3), a top cover (4), and a first end cover (5), wherein the first end cover (5) is releasably attached to the top cover (4) via a first outer end attachment interface (A1), wherein the first outer end attachment interface (A1) is formed by a first end cover attachment surface (51) of the first end cover (5) and a first top cover attachment surface (41) of the top cover (4) which face each other along a longitudinal direction (L). The disclosure also relates to a vehicle (100) and a method for manufacturing a battery pack (1).

AN ENERGY STORAGE SYSTEM COMPRISING AT LEAST ONE BATTERY CELL

Resumen de: EP4645519A1

An energy storage system (4) comprising at least one battery cell (6) comprising a first end (8), a second end (10), and a central axis (c) extending therebetween. The energy storage system further comprises a base plate (12) comprising at least one cell holder (14). Each cell holder configured to hold the first end of one battery cell. The energy storage system further comprises a top plate (16), spaced from the base plate such that a first volume (18) is formed therebetween. The top plate comprising at least one sleeve (20). The energy storage system configured such that each sleeve extends along the central axis of one battery cell and is fluidly connected to the first volume, and wherein a capillary channel (22) is formed between each battery cell and each sleeve, the energy storage system being configured such that by supplying a liquid to the first volume, the liquid travels through each capillary channel via capillary action.

SEPARATOR, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4645571A1

The present application provides a separator, a battery cell, a battery and an electrical apparatus. The separator comprises a polymer group, wherein the polymer group comprises at least one of a first polymer and a second polymer, wherein the separator satisfies: 1.5≤m2−Mm1−M×vλ≤12.

BREAKER BOX SYSTEM, POWER SUPPLY SYSTEM, AND VEHICLE

Resumen de: EP4645521A1

The present application provides a breaker box system, a power supply system, and a vehicle. The breaker box system comprises a plurality of breaker boxes, the plurality of breaker boxes not sharing a ground. Each breaker box comprises a housing, a battery cell, and an insulation detection assembly, the battery cell and the insulation detection assembly being disposed in the housing. One end of the insulation detection assembly is connected to a positive electrode of the battery cell, the other end is connected to a negative electrode of the battery cell, and a reference ground of the insulation detection assembly is the housing of the breaker box. The embodiments of the present application, by having the plurality of breaker boxes not share a ground, by providing in each breaker box an insulation detection assembly corresponding thereto, and by each insulation detection assembly being used for insulation detection of the corresponding breaker box, achieves the insulation detection of each breaker box not affecting one another, and achieves insulation detection of each breaker box.

BATTERY PACK AND PRODUCTION METHOD FOR SAME

Resumen de: EP4645557A1

The present disclosure enables easy connection between a circuit board and a battery pack. The battery pack 100 includes a battery holder 20 that holds a plurality of secondary battery cells 1 and a plurality of lead plates 30, a circuit board 40 having a rectangular shape with a pair of edges and a pair of side faces intersecting the pair of edges and including a plurality of electrical connection regions 42 for respectively connecting to the plurality of lead plates 30, and a pair of guide walls 23, which is disposed on one face of the battery holder 20 and forms a slot 28 in which the circuit board 40 is inserted by respectively guiding the pair of side faces of the circuit board 40. Each of the plurality of lead plates 30 includes a bending piece 32 that is to be bent and connected to each of the electrical connection regions 42 of the circuit board 40. The bending piece 32 is connected to each of the plurality of electrical connection regions 42 in a state where the circuit board 40 is inserted into the slot 28 to electrically connect the plurality of lead plates 30 to the circuit board 32.

BATTERY PACK AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4645556A1

The present disclosure provides a battery pack and the like that allow electronic components to be more easily secured to the circuit board. A battery pack 100 includes one or more secondary battery cells 1, a battery holder 20 that holds the one or more secondary battery cells 1, a circuit board 40 electrically connected to the secondary battery cell 1, an outer case 10 that stores the battery holder 20 and the circuit board 40, and an electronic component 50 that is mounted on the circuit board 40, and is visible or operable from outside of the outer case 10. The battery holder 20 includes a battery storage unit 21 that stores the one or more secondary battery cells 1, an attachment unit 24 that enables attachment of at least one edge of the circuit board 40, and a linking unit 26 that links the electronic component 50 with the outer case 10 in a state where the circuit board 40 is attached to the attachment unit 24.

BATTERY PACK

Resumen de: EP4645559A1

The present disclosure provides a battery pack capable of holding secondary battery cells without gaps. A battery pack 100 includes a battery holder 2 that holds one or more secondary battery cells 1. The battery holder 2 includes hollow holder tube units 3, each of which individually stores the one or more secondary battery cell 1, and a pair of holder lid units 12 and 22 that respectively close hollow end faces of the holder tube units 3. At least one of the pair of holder lid units 12 and 22 includes an elastically deformable protruding portion 15 that partially protrudes toward one of the pair of end faces of the secondary battery cells 1 stored in the holder tube unit 3. The battery holder 2 is configured by joining a first holder 10 and a second holder 20 that are divided into at least two portions in a longitudinal direction of the one or more secondary battery cells 1, and the protruding portion 15 is configured to press the end face of the one or more secondary battery cells 1 in a state where the first holder 10 and the second holder 20 are coupled.

COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME AND USE OF SAME

Resumen de: EP4645465A1

The present invention provides composite particles consisting of a Si-C composite material capable of achieving a reduction in volume expansion of an electrode during charging in a lithium-ion rechargeable battery. The present invention includes composite particles including a carbon material and silicon, wherein a true density (He true density) by dry density measurement using helium gas is 1.30 g/cm³ or more and 2.00 g/cm³ or less, a true density (BA true density) by wet density measurement using 1-butanol is 1.00 g/cm³ or more and 1.64 g/cm³ or less, and the He true density is greater than the BA true density.

ELECTRICAL CELL

Resumen de: EP4645357A1

The invention relates to an electrical cell (1) comprising• a reservoir (R) containing an electrolyte (EL),• a first electrode (E1), the first electrode (E1) being in electrical contact with the electrolyte (EL),• a second electrode (E2),• the second electrode (E2) being conductive and having a porous nano structure, comprising pores having a diameter of less than 1000 nm,• whereby the first electrode (E1) in comparison to the second electrode (E2) offers a different electrical potential of zero charge,• whereby the second electrode (E2) in operation is contacting the electrolyte (EL), such that the second electrode (E2) is wetted by the electrolyte (EL) due to capillary forces, whereby the electrolyte (EL) within the pores by means of the formation of electrical double layers provides an electrical current.

PREVENTIVE SAFETY DISCHARGE FOR BATTERY SYSTEMS

Resumen de: EP4644161A1

A preventive battery discharge system (100) for a battery system (110) with a plurality of battery cell assemblies (121, 122) in a battery system housing (111), the preventive battery discharge system comprising an interface (130) for receiving a thermal runaway indication signal for a first battery cell assembly (121) of the plurality of the battery cell assemblies; an energy sink device (140) in an energy sink device housing (141), the energy sink device connectable with the plurality of battery cell assemblies by a switching unit (150), that is configured to receive electrical energy discharged from at least one second battery cell assembly (122) of the plurality of the battery cell assemblies; and a control module (160) configured to identify the at least one second battery cell assembly to be discharged based upon the thermal runaway indication signal received via the interface; and configured to control the switching unit to discharge the at least one second battery cell assembly and to transport energy from the at least one second battery cell assembly to the energy sink device after a thermal runaway indication signal has been received; wherein the energy sink device is physically separated from the plurality of battery cell assemblies.

A METHOD FOR PRODUCING A MONOCELL OF A BATTERY

Resumen de: EP4645399A1

Cut-out patterns are produced in a first coated metal foil (14), a second coated metal foil (20) and pair of separator sheets (25). From the first foil (14), the shape of the coated portion (6) of the first electrode is partially cut out along a cut-out lane (17). The cut-out is partial in the sense that said coated portion remains attached to the foil at the predefined position (19) of the first electrode tab. The cut-out pattern in the first foil additionally includes an alignment opening (18, 18a), while the cut-out patterns in the second foil and in the separator sheets also include respective alignment openings (23a, 26). The first foil (14) is inserted between the separator sheets (25) wherein at least one pair of alignment openings (26) in said separator sheets are mutually aligned to each other and to an alignment opening (18, 18a) in the first foil. The separator sheets are then bonded along the cut-out lane (17), to form a first assembly comprising a pocket (11) that contains the coated portion (6) of the first electrode. The second foil (20) is then placed on or under said first assembly, and the alignment opening (23a) in the second foil is aligned to the aligned openings in the first assembly The second foil is attached to the first assembly to obtain a second assembly (28). From the second assembly, the monocell is cut out according to a predefined shape.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION BATTERIES, BATTERY COMPRISING THE SAME, AND USE THEREOF

Resumen de: CN120390994A

The present invention relates to a positive electrode active material for a lithium ion battery wherein the positive electrode active material comprises secondary particles comprising primary particles wherein the primary particles have an average primary particle size (S1) as determined by SEM image analysis, wherein the positive electrode active material has an average grain size (S2) as determined by X-ray diffraction measurement, where S1/S2 is at least 13, and wherein the positive electrode active material has been treated with an aqueous solution.

POWDEROUS MATERIAL COMPRISING A HYDROXIDE AND METHOD FOR MANUFACTURING THE SAME

Resumen de: CN120379939A

The present invention relates to a powdered material for preparing a positive electrode active material for a secondary battery comprising a hydroxide or oxyhydroxide of one or more metal elements, where the one or more metal elements comprise at least one of Ni, Co and Mn, where the material comprises secondary particles comprising a plurality of primary particles, wherein the material has a median particle size D50, determined by laser diffraction, of between 3.0 mu m and 20.0 mu m, and wherein the primary particles have a particle-based thickness distribution, determined by measuring the thickness of the primary particles in an image taken by the SEM, and wherein the thickness distribution has a median thickness of between 180 nm and 600 nm, and wherein the material has a span value (D90-D10)/D50 of at most 0.6, preferably at most 0.4, more preferably at most 0.2.

NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY COMPRISING SAME, AND ELECTRIC DEVICE

Resumen de: EP4645420A1

The present application relates to a negative electrode sheet, and a secondary battery and an electrical device including the same. The negative electrode sheet comprises a current collector and a negative electrode active layer stacked on surface of the current collector, and the negative electrode active layer comprises a first active layer and a second active layer which are stacked. The materials of the first active layer comprise, in percentage by mass based on the first active layer: 60%-94% of a silicon-based material, 0%-30% of a carbon-based material, and 5%-15% of a binder. The materials of the second active layer comprise, in percentage by mass based on the second active layer: 0%-5% of a second silicon-based material, 94%-99% of a second carbon-based material, and 1%-3% of a second binder. The negative electrode sheet has good cycle performance.

MONITORING APPARATUS AND OPERATING METHOD THEREOF

Resumen de: EP4644878A2

A monitoring device according to one embodiment disclosed herein may include an image acquisition unit configured to acquire an image capturing at least one process processing device related to manufacturing of a battery cell, a state determination unit configured to generate a first determination result obtained by determining whether the battery cell is defective by inputting the acquired image into an artificial intelligence model configured to determine a state of a top insulator of the battery cell, and a determination unit configured to determine whether the battery cell is defective based on the first determination result.

ELECTRODE MANUFACTURING METHOD, MANUFACTURING SYSTEM, AND ELECTRODE

Resumen de: EP4645444A1

A method of producing an electrode comprises (a) to (c) below: (a) preparing a base sheet; (b) preparing an active material film; and (c) affixing the active material film to the base sheet by passing the base sheet and the active material film through a roll gap. The base sheet includes a first region and a second region. An arithmetic mean roughness of the second region is greater than an arithmetic mean roughness of the first region. The second region is adjacent to the first region. In the (c), the active material film adheres selectively to the first region among the first region and the second region.

ELECTRODE AND SECONDARY BATTERY

Resumen de: EP4645407A1

Provided is an electrode comprising a current collector, a conductive coating layer formed on the current collector, and a composite material layer formed on the conductive coating layer, wherein an average thickness of the conductive coating layer is 0.5 µm or more, wherein an interface tortuosity τ between the conductive coating layer and the composite material layer is 1.05 or more, wherein the composite material layer comprises an active material, and wherein the active material has an average particle size d50 of 2 µm or more. It is an object of the present invention to improve the charge and discharge capacity even with a high basis weight.

COATED POSITIVE ELECTRODE ACTIVE MATERIAL AND BATTERY USING SAME

Resumen de: EP4645450A1

A coated positive electrode active material 13 of the present disclosure includes: a first positive electrode active material 10 including lithium and a transition metal; a coating layer 11 coating the first positive electrode active material 10. The coating layer 11 includes: a first material 14 including a halide; and a second material 15 including at least one selected from the group consisting of a second positive electrode active material capable of absorbing and releasing lithium and a compound including the transition metal. A battery 100 of the present disclosure includes: a positive electrode 23; a negative electrode 26; and an electrolyte layer disposed between the positive electrode 23 and the negative electrode 26. The positive electrode 23 includes the coated positive electrode active material 13 of the present disclosure.

VEHICLE DIAGNOSIS DEVICE, VEHICLE DIAGNOSIS METHOD, AND VEHICLE DIAGNOSIS PROGRAM

Resumen de: EP4644932A1

A vehicle diagnosis device includes a characteristic data acquisition portion that acquires a plurality of sets of characteristic data included in a predetermined output pattern of a vehicle, an actual data acquisition portion that acquires output data based on the actual driving of the vehicle in a predetermined period in the past and actual measurement data obtained during driving of the vehicle in the predetermined period as representing actual measurements as to a parameter required in vehicle diagnosis, an equivalent pattern generator that cuts out points or sections that are similar to a plurality of sets of characteristic data from the output data in the predetermined period to generate an equivalent output pattern that is regarded as equivalent to the predetermined output pattern, and an actual measurement extraction portion that extracts, from the actual measurement data in the predetermined period, the actual measurements at each point or in each section in the equivalent output pattern.

LAMINATE

Resumen de: EP4644112A1

The present invention provides a laminate that excels in elasticity as well as in both heat shielding performance and flame shielding performance in combustion and, in particular, is capable of blocking heat and flame transfer to adjacent battery cells to prevent chain explosion in the event of ignition or thermal runaway, when it is used as an inter-cell member for in-vehicle batteries. The laminate of the present invention includes an A layer including a resin and a fiber and a B layer, the laminate including a total of three or more layers of the A layer and the B layer, the laminate having no flame penetration in two-minute exposure to burner flame and being rated as V-0 or greater in a UL94 burning test.

POUCH FILM LAMINATE AND SECONDARY BATTERY

Nº publicación: EP4645536A1 05/11/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: EP4645536A1

A pouch film laminate according to the present invention includes a first base material layer, a second base material layer, a gas barrier layer, and a sealant layer which are sequentially laminated, wherein a moisture content per unit weight of the pouch film laminate is 1,000 ppm or more, the second base material layer has a melting temperature of 240°C or higher, and the gas barrier layer has a thickness of 45 µm to 100 µm.