Alerta

BATTERY CELL AND BATTERY MODULE INCLUDING SAME

Resumen de: EP4542741A1

According to the present invention, there may be provided a battery cell and a battery module including same, in which a sealing portion sealing a case of the battery cell has formed a folded portion, and a taping structure is introduced only on a portion of the case and the folded portion, so that the deformation of the sealing portion is suppressed and there is no reduction in the cooling effect on the battery cell.

METHOD FOR PRODUCING SILICON ELECTRODES AS ANODES FOR LITHIUM ION BATTERIES AND A SILICON ELECTRODE PRODUCED USING SAME

Resumen de: WO2023247072A1

The invention relates to a method for producing a silicon electrode as an anode for a lithium ion battery, in which an active layer is deposited on a substrate, preferably copper, and then undergoes a rapid tempering, as well as an anode produced using same. The object of the invention of providing a method, which dispenses with the need for a vacuum section for depositing the active material, in particular silicon, for the production of anodes for lithium ion batteries, and thereby allows for an extremely cost-optimised production of almost pure silicon anodes for lithium ion batteries, is achieved in that the active layer is formed from a silicon and metal particle mixture, which is applied to the substrate in a dry process and stabilised in a controlled manner via the rapid tempering to form a semi-porous active layer and fixed to the substrate.

ELECTROCHEMICAL DEVICE

Resumen de: CN119343810A

An electrochemical device comprises at least one enclosure (10A) for a stack (24) of sheets of electrochemical device shaping material, the stack comprising at least one sheet of first type electrode, at least one sheet of second type electrode, and at least one separator sheet located between the sheets of two types electrode, where the enclosure comprises a plurality of parts, the components include a first component (12A) and a second component (14), which are joined to each other using welding, crimping, crimping or stamping, for forming an internal volume containing the stack (24).

SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL APPARATUS

Resumen de: EP4542709A1

The present application provides a secondary battery, a battery module, a battery pack, and an electrical device. The secondary battery includes a positive electrode plate and an electrolytic solution; the positive electrode plate including a positive electrode active material; the electrolytic solution includes a boron-containing salt; a mass percentage of the boron-containing salt based on the total mass of the electrolytic solution is denoted as A%; an upper-limit potential of the positive electrode active material with respect to lithium metal is denoted as V1 (V); and the secondary battery satisfies: 0 < A/(V1-4.1) ≤ 4 and V1 > 4.1; optionally, 0 < A/(V1-4.1) ≤ 3. The present application is capable of improving the cycle capacity retention and cycle DCR growth rate of secondary batteries.

SECONDARY BATTERY

Resumen de: EP4542708A1

In a secondary battery including an electrolyte layer containing a sulfide solid electrolyte, the electrolyte layer has both high voltage resistance and high ionic conductivity. The secondary battery of the present disclosure includes a positive electrode, an electrolyte layer, and a negative electrode, wherein the electrolyte layer contains a sulfide solid electrolyte and a perfluoropolyether represented by formula (1) below:        E1-Rf1-R-O-Rf2-E2     (1)where Rf1 and Rf2 are each independently a C1-16 divalent alkylene group which may be substituted with one or more fluorine atoms, E1 and E2 are each independently a monovalent group selected from the group consisting of a fluorine group, a hydrogen group, a hydroxyl group, an aldehyde group, a carboxylic acid group, a C1-10 alkyl ester group, an amide group which may have one or more substituents, and an amino group which may have one or more substituents, and R is a divalent fluoropolyether group.

SECONDARY BATTERY

Resumen de: EP4542686A1

Disclosed is a technology for reducing the resistance of a secondary battery including a sulfide solid electrolyte. The secondary battery of the present disclosure includes a first electrode, an electrolyte layer, and a second electrode, wherein at least one of the first electrode and the electrolyte layer contains a sulfide solid electrolyte, and the first electrode contains a perfluoropolyether represented:        E1-Rf1-R-O-Rf2-E2     (1)where Rf1 and Rf2 are each independently a C1-16 divalent alkylene group which may be substituted with one or more fluorine atoms, E1 and E2 are each independently a monovalent group selected from the group consisting of a fluorine group, a hydrogen group, a hydroxyl group, an aldehyde group, a carboxylic acid group, a C1-10 alkyl ester group, an amide group which may have one or more substituents, and an amino group which may have one or more substituents, and R is a divalent fluoropolyether group.

N-VINYL LACTAM COPOLYMER AND COMPOSITION

Resumen de: EP4541828A1

The present invention aims to provide an N-vinyl lactam copolymer and a composition each retaining an excellent ability to disperse carbon and excellent solubility in water but less dissolving in a carbonate electrolyte solvent. The present invention relates to an N-vinyl lactam copolymer containing: a structural unit (A) derived from an acid group-containing monomer salt; and a structural unit (B) derived from an N-vinyl lactam monomer, an amount of the structural unit (A) being 30% by mass or less based on a total amount of the structural unit (A) and the structural unit (B), the total amount being taken as 100% by mass, the N-vinyl lactam copolymer having a weight average molecular weight of 1,000 or more and 100,000 or less and a K value of 12 to 60 as determined by the Fikentscher method.

COPOLYMER FOR SEPARATOR AND SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4541827A1

The present invention relates to a copolymer, and a slurry composition, a separator, and a secondary battery that comprise same, wherein the copolymer comprises, based on 100 wt% of the total weight of the copolymer, 15 wt% or less of a vinylacetate monomer unit, 10-55 wt% of an acrylate-based monomer unit, and 1-10 wt% of an acrylic acid-based monomer unit bound with at least one selected from the group consisting of an alkali metal and an acetate salt compound comprising an alkali metal.

RECYCLED POSITIVE ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, METHOD FOR USING RECYCLED POSITIVE ELECTRODE MATERIAL, RECYCLED POSITIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4542682A1

There is provided a recycled positive-electrode material that includes: lithium, nickel, cobalt, and manganese; aluminum in an amount of 0.3% by mass or greater and 3% by mass or less; copper, iron, or both in an amount of less than 1% by mass.

HEAT EXCHANGE DEVICE, HEAT EXCHANGE APPARATUS, THERMAL MANAGEMENT SYSTEM AND CONTROL METHOD THEREFOR, AND VEHICLE

Resumen de: EP4541646A1

A heat exchange apparatus, a heat exchange device, a thermal management system, a control method for a thermal management system, and a vehicle are provided, to implement a heat exchange or heat preservation requirement of a to-be-heat-exchanged element, and improve performance and use safety of the to-be-heat-exchanged element. The heat exchange apparatus includes a housing and a spacer plate disposed in the housing. The spacer plate separates the housing into a first cavity and a second cavity. An outer wall on a side that is of the first cavity and that is away from the second cavity is configured to be in thermally conductive contact with a to-be-heat-exchanged element. The first cavity is provided with a first inlet and a first outlet. The second cavity is provided with a second inlet and a second outlet. A first sealing element configured to open or close the second inlet is disposed at the second inlet. A second sealing element configured to open or close the second outlet is disposed at the second outlet.

SULFIDE-BASED SOLID ELECTROLYTE POWDER, METHOD FOR PRODUCING SULFIDE-BASED SOLID ELECTROLYTE POWDER, SULFIDE-BASED SOLID ELECTROLYTE LAYER, AND LITHIUM ION SECONDARY BATTERY

Resumen de: EP4542583A1

The present invention relates to: a sulfide-based solid electrolyte powder that generates photoluminescence at a wavelength of 660 to 750 nm; a method for producing the same; a sulfide-based solid electrolyte layer containing the sulfide-based solid electrolyte powder; and a lithium-ion secondary battery.

LITHIUM-COBALT-BASED COMPOSITE OXIDE PARTICLES AND METHOD FOR PRODUCING SAME, AND LITHIUM-COBALT-BASED COMPOSITE OXIDE PARTICLE COMPOSITION AND METHOD FOR PRODUCING SAME

Resumen de: EP4541771A1

Disclosed herein are lithium-cobalt-based composite oxide particles obtained by a solid-phase process and capable of reducing the weight and thickness of a positive electrode material when used as a positive electrode active material for non-aqueous lithium secondary batteries or all-solid-state batteries and a method for producing the same. The lithium-cobalt-based composite oxide particles are formed of a lithium-cobalt-based composite oxide having an average primary particle diameter of 0.50 µm or less and show a weight loss on heating at 850°C of 1.5 mass% or less.

ALKALI METAL ION CONDUCTOR, ALKALI METAL ION BATTERY, AND ALKALI METAL ION CONDUCTOR PRODUCTION METHOD

Resumen de: EP4542714A1

Disclosed is an alkali metal ion conductor which behaves as a liquid at a low temperature. The alkali metal ion conductor of the present disclosure is an alkali metal ion conductor comprising a salt, wherein the salt comprises a first cation, a second cation, and a first anion, the first cation is a tetraalkylammonium ion having an alkyl chain length of 5 or more, the second cation is an alkali metal ion, and the first anion is at least one anion selected from the group consisting of a bromine ion, a chlorine ion, and a hydrogen sulfate ion.

SEPARATOR AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4542753A1

The present application discloses a separator, a method for preparing the same, a secondary battery and an electrical device, wherein the separator comprises a substrate and a coating provided on at least one side of the substrate, wherein the coating comprises first particles and second particles, the first particles being organic particles and having an average particle size denoted as D1, the second particles having an average particle size denoted as D2, such that the coating satisfies: 1 < D1/D2 ≤ 10. The separator has good heat resistance as well as a good wetting effect and a liquid-retaining effect on the electrolytic solution, so as to enable the secondary battery to have better thermal safety performance and better cycling performance.

NON-AQUEOUS ELECTROLYTE FOR SECONDARY BATTERY, LITHIUM ION BATTERY, AND LITHIUM ION CAPACITOR

Resumen de: EP4542711A1

A non-aqueous electrolyte solution for a secondary battery, containing a first compound represented by the following Formula (1), a second compound represented by the following Formula (2), a non-aqueous solvent, and an electrolyte.

ELECTRODE TAB FOR SECONDARY BATTERY, ELECTRODE ASSEMBLY, SECONDARY BATTERY, BATTERY PACK, AND TRANSPORTATION MEANS

Resumen de: EP4542761A1

The present invention relates to an electrode tab for a secondary battery, the electrode tab including: a first member and a second member having different resistances, the second member being located in at least a portion of the electrode tab and having a resistance greater than that of the first member; and a cutoff part configured to be melted by its own resistance heat to interrupt current when an overcurrent of 10 A or higher flows.

BATTERY ASSEMBLY FOR HEAT EXCHANGER AND HEAT EXCHANGER EQUIPPED WITH THIS BATTERY ASSEMBLY

Resumen de: EP4542157A1

A battery assembly for a heat exchanger, comprising a tube bundle provided with tubes (3) and a shoulder assembly provided with a front jig (7) bearing holes (2) for the passage of said tubes (3), wherein said front jig (7) is fixed on the frame (8) of the battery assembly by means of respective uprights (9). According to the invention, the aforementioned front jig (7) is mounted with adjustable positioning on the aforementioned battery assembly, so as to correct centering errors of the tubes (3) relative to the aforementioned holes (2) of the jig (7). Compared to the battery assemblies of the prior art, the one according to the present invention offers the advantage of having shoulder assemblies equipped with a floating jig, i.e., mounted sliding on the frame of the battery assembly, so as to allow correcting the centering errors between the holes of the shoulder jig and the tubes that pass through them.

BATTERY PACK AND METHOD OF PROTECTING THE SAME

Resumen de: EP4542821A1

A battery pack includes battery cells between first and second pack terminals, balancing resistors respectively connected to the battery cells, balancing switches respectively connected to the battery cells and to the balancing resistors, and configured to form a closed circuit by connecting a corresponding one of the battery cells to a corresponding one of the balancing resistors, a rack fuse between the battery cells and the first pack terminal, or between the battery cells and the second pack terminal, a current sensor between the battery cells and the first pack terminal or the second pack terminal, and a controller configured to detect pack current between the first and second pack terminals through the current sensor, to control the balancing switches, and to detect a short-circuit between the first and second pack terminals based on the pack current and turn on all of the balancing switches.

POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Resumen de: EP4541773A1

The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a single-crystal type positive electrode active material which has a uniform particle size distribution and high sharpness of the particle size distribution, and a lithium secondary battery including the same.

ALL-SOLID SECONDARY BATTERY

Resumen de: EP4542672A2

Disclosed is an all-solid secondary battery including a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer, the cathode layer including a cathode current collector and a cathode active material layer on one surface of the cathode current collector, the anode layer including an anode current collector and a first anode active material layer on one surface of the anode current collector, the first anode active material layer including a first anode active material and a second anode active material, and the first anode active material including a first composite anode active material, wherein the first composite anode active material includes a first metal oxide represented by MaOb (0

BATTERY DISCHARGE APPARATUS, BATTERY DISCHARGE SYSTEM, AND BATTERY DISCHARGE METHOD

Resumen de: EP4542724A1

Provided is a battery discharge apparatus, battery discharge system, and battery discharge method which uses a battery as a power source for reverse potential discharge. The battery discharge apparatus includes a discharge processor electrically connected to a first target battery and a second target battery to discharge the first and second target batteries, a first battery loader loaded with the first target battery to electrically connect the first target battery to the discharge processor, and a second battery loader loaded with the second target battery to electrically connect the second target battery to the discharge processor, and the first target battery is discharged by reverse potential discharge using the second target battery.

BATTERY TOP COVER ASSEMBLY AND BATTERY

Resumen de: EP4542727A1

A battery top cover assembly includes a top cover sheet, a lower insulating member and a pole. The top cover sheet is provided with a mounting hole which penetrates the top and bottom of the top cover sheet, the lower insulating member is provided with a first through hole which penetrates the top and bottom of the lower insulating member and corresponds to the mounting hole, one end of the pole passes through the mounting hole and the first through hole and is pressed against a side of the lower insulating member facing away from the top cover sheet, a cavity is formed between the top cover sheet and the pole, and a vent portion is provided at the portion where the lower insulating member is pressed against the pole.

NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4542712A1

The present invention provides a non-aqueous electrolyte including: a lithium salt; an organic solvent; and an additive, wherein the additive includes a first additive including a compound represented by a specific formula and a second additive including lithium difluorophosphate. The non-aqueous electrolyte according to the present invention may form a stable film on the electrodes, and thus improve the storage characteristics and resistance characteristics at a high temperature of a lithium secondary battery including the non-aqueous electrolyte.

SECONDARY BATTERY AND BATTERY PACK THEREOF

Resumen de: EP4542758A1

A quadrangular secondary battery includes a shallow-drawn battery can and a lid plate welded together for sealing. A battery pack includes such secondary batteries without causing a busbar to be larger or to interfere with duct placement and without causing stress concentration on welding beads under a restraining load. A secondary battery (1) includes an electricity generator, a metal battery can (3), a nonaqueous electrolyte, a metal lid plate (5), and a pair of external terminals (6, 7). The battery can (3) is quadrangular and shallow-drawn, accommodates the electricity generator placed laterally, and includes a flange (34) on a periphery of its opening. The nonaqueous electrolyte fills the battery can (3) accommodating the electricity generator. The lid plate (5) includes an outer edge (51a) welded to the flange (34) on the battery can (3) and covers the battery can (3). The lid plate (5) includes a raised portion (52) being flat and extending beyond the outer edge (51a) in an inner area of the outer edge (51a).

UNIT CELL HAVING CAP MEMBER AND SECONDARY BATTERY COMPRISING SAME

Nº publicación: EP4542737A1 23/04/2025

Solicitante:

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

Resumen de: EP4542737A1

A secondary battery includes a unit cell including an electrode assembly provided with a tab bundle and having a round portion, and a cap member in the vicinity of the round portion of the electrode assembly. The cap member includes a pair of first surfaces which are parallel to an upper surface and a lower surface of the electrode assembly, a pair of second surfaces which are parallel to both side surfaces of the electrode assembly, one third surface which connects the pair of first surfaces and the pair of second surfaces, and a contact member provided in an internal space formed by the pair of first surfaces, the pair of second surfaces, and the one third surface and in contact with the round portion of the electrode assembly. The third surface is provided with a through hole through which the tab bundle passes.