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SECONDARY BATTERY, BATTERY PACK AND ELECTRONIC DEVICE

Resumen de: EP4708423A1

A secondary battery (100) is provided, including an electrode assembly (120) which includes a negative pole sheet (11), a first separator (12), a positive pole sheet (13), and a second separator (14). The negative pole sheet (11) includes a negative coated area (211) and a negative tab (311) protruding from the negative coated area (211). The positive pole sheet (13) includes a positive coated area (213) and a positive tab (313) protruding from the positive coated area (213). A direction from the negative tab (311) to the positive tab (313) is a height direction (H). Along the height direction (H), an upper end of the negative coated area (211) overhangs an upper end of the positive coated area (213). Along a direction away from the height direction (H), a lower end of the negative coated area (211) overhangs a lower end of the positive coated area (213).

LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR

Resumen de: EP4708391A1

A lithium secondary battery includes: a positive electrode; a negative electrode; an electrolyte; and a separator. The positive electrode includes first and second positive electrode active materials having different average particle diameters (D₃₀). The average particle diameter (D₅₀) of the first positive electrode active material is larger than that of the second positive electrode active material. The first and second positive electrode active materials include single-particle type particles. The negative electrode includes a silicon-based negative electrode active material, and the lithium secondary battery has an IRF value of 1 to 1.4, defined by Equation 1 below. IRF=RpRn. In the Equation 1, each variable is the same as described above in this specification.

ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: EP4708430A1

An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte are disclosed. The electrolyte may include a nonaqueous (e.g., water-insoluble) organic solvent, a lithium salt, a first additive represented by Chemical Formula 1, and a second additive represented by Chemical Formula 2. A more detailed description of the first additive and the second additive is provided in the present disclosure.

TRAINING DEVICE AND METHOD FOR PREDICTING ADHESION TO ELECTRODE, ELECTRODE MONITORING DEVICE AND ELECTRODE MANUFACTURING METHOD USING PREDICTION MODEL TRAINED USING SAME, AND LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY

Resumen de: EP4707778A1

Disclosed is a learning apparatus and method for predicting adhesive force to an electrode, an electrode monitoring device and an electrode manufacturing method using a prediction model trained by using the same, and a lithium secondary battery manufactured by the same. The learning apparatus for predicting adhesive force to an electrode includes: a memory in which a near-infrared spectrum for an electrode and a measurement value of adhesive force of the electrode; a prediction model for predicting the adhesive force of the electrode by receiving a differential mean of a plurality of wave number sections including a characteristic for the adhesive force of the electrode in the near-infrared spectrum; and a processor for receiving the near-infrared spectrum, performing primary differentiation on the near-infrared spectrum, extracting the plurality of wave number sections from the primarily differentiated near-infrared spectrum, calculating the differential mean of the plurality of wave number sections, and transmitting the calculated differential mean to the prediction model, in which the processor receives a predicted value for the adhesive force of the electrode and trains the prediction model so that the predicted value is close to the measurement value.

Electrical cell module, and a method of assembling an electrical cell module

Resumen de: GB2643911A

A cell module 100 comprises module end plates 160a,160b, a first cell stack 110a and a second cell stack 110b, each cell stack comprising a series of cells 112 stacked along a longitudinal axis 102 and an end plate (130a,130b; Fig 2) at each end. The end plates apply compressive force along the longitudinal axis and define the stack length. The compressive force applied to the cell stacks is in a predetermined operable range. In use the module end plates are fixedly engaged with the corresponding stack end plates, and the first stack length is different to the second stack length (see figure 4). The stack end plates may be fixed to one another by intermediary support plates 140a,140b, which may extend along the longitudinal axis of the cell module. The end plates may have one or more engaging elements. The predetermined compressive force may be between 1-10,000 Newtons. Mount portions 162 of the module end plate may engage each of the stack end plates. There may also be a third cell stack which may have a different stack length to the first and second stack lengths. A further aspect is a method of manufacturing the cell module.

A solid-state battery cell for an electric energy storage device of an at least in part electrically operated motor vehicle

Resumen de: GB2643901A

A solid-state battery cell 10 for an electric energy storage device of an at least in part electrically operated motor vehicle, comprising a housing 14, wherein inside of the housing a jelly roll 12 is arranged and wherein the jelly roll comprises at least one mandrel 16 comprising a central polymer mandrel configured to increase radial pressure on the jelly roll. Part of the mandrel may be configured to receive an expansion agent - optionally a liquid substance, such as air - and may be a phase-change material. The mandrel may expand via an internal expansion mechanism, may comprise at least one composite material and may be at least partially hollow. The jelly roll may comprise a laminated stack of at least one anode layer (Fig. 2, 32), at least one solid-state electrolyte layer (Fig. 2, 30), at least one cathode layer (Fig. 2, 28) and at least one separator layer (Fig. 2, 26) rolled into a cylinder inside the housing. A method for manufacturing the battery cell.

Thermal management sheet, method of manufacture, and articles using the same

Resumen de: GB2643975A

A method of forming a thermal management sheet for a battery including cured polyurethane foam, the method including combining an active hydrogen-containing component including a polyol and an isocyanate component including a polyisocyanate to form an uncured polyurethane foam; and curing the uncured polyurethane foam to form the cured polyurethane foam, wherein the uncured polyurethane foam includes, based on a total weight of the uncured polyurethane foam, 3 to 68 weight percent of sodium borate, 0.1 to 7 weight percent of surfactant, and 0.001 to 9 weight percent of catalyst, wherein the cured polyurethane foam has a density of 12 to 35 pounds per cubic foot, and wherein the cured polyurethane foam has a thickness of 1 to 30 millimeters.

BATTERY PACK AND ENERGY STORAGE SYSTEM INCLUDING SAME

Resumen de: EP4708497A2

Disclosed are a battery pack configured to guide venting gas to be discharged in a desired direction when a thermal event occurs, and an energy storage system including the same.A battery pack according to one aspect of the present disclosure includes a cell assembly, a pack frame accommodating the cell assembly therein, and a venting guidance portion coupled to the pack frame and configured to cause an outlet, through which venting gas emitted from the cell assembly is discharged to the outside of the pack frame, to be formed at a coupling portion with the pack frame, which is at least partially weakened as the internal pressure of the pack frame increases due to the venting gas.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4707243A2

The present disclosure relates to a method of manufacturing a positive electrode active material for nonaqueous electrolyte secondary batteries that comprises a lithium transition metal composite oxide containing at least 80 mol% Ni with reference to the total number of moles of metal elements excluding Li, and that has B present on the particle surface of at least this composite oxide. Assuming that a particle having a particle diameter larger than the 70% volume-based particle diameter (D70) is denoted as a first particle and a particle having a particle diameter smaller than the 30% volume-based particle diameter (D30) is denoted as a second particle, the mole fraction of B, with reference to the total number of moles of metal elements excluding Li, in the first particle is larger than the mole fraction of B, with reference to the total number of moles of metal elements excluding Li, in the second particle.

CURRENT COLLECTING COMPONENT, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4708549A2

Embodiments of this application provide a battery cell (20), a battery (100), and an electric device, pertaining to the field of battery technologies. The battery cell (20) has a current collecting component (24) and two output poles with opposite polarities for outputting electrical energy. The current collecting component (24) includes two current collectors (241), an insulator (242), and a limiting structure (243). The two current collectors (241) are arranged opposite each other along a width direction of the current collecting component (24) and are configured to connect to the two output poles respectively. The insulator (242) is configured to connect the two current collectors (241) and is located at least partially between the two current collectors (241) in the width direction to insulate the two current collectors (241) from each other. The limiting structure (243) is configured to restrict the current collectors (241) from leaving the insulator (242) in the width direction. The two current collectors (241) in the current collecting component are connected by the insulator (242), and the two current collectors (241) are insulated from each other by the insulator (242). The limiting structure (243) restricts the current collecting component (24) from leaving the insulator (242) in the width direction of the current collecting component (24), so that the two current collectors (241) are not easily separated from the insulator, reducing the risk of the two current coll

SECONDARY BATTERY

Resumen de: EP4707795A2

The present invention relates to a secondary battery. The secondary battery according to the present invention comprises an electrode assembly wherein electrodes and separators are alternatingly stacked, and a battery case in which the electrode assembly is accommodated, where the battery case comprises a first gas pocket on which a first collection space for collecting gases in the battery case is formed, and on which is provided a first exhaust port from which gases in the first collection space are exhausted, and a second gas pocket on which a second collection space for collecting gases exhausted from the first exhaust port is formed, and on which is provided a second exhaust port for outward exhaust of gas in the second collection space.

SEPARATOR, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: EP4708538A1

A separator includes a base film and a first coating disposed on a surface of the base film to face one side of a positive electrode. The first coating includes an organic cyanide with a first functional group. The first functional group includes at least one of a cyano group, an isocyano group, an isocyanate group, or a melamine compound. The first functional group of the first coating has a molar concentration of M fmol/µm<3>, where 0.1 ≤ M ≤ 30. The secondary battery provided by this application has a high energy density and also has good thermal safety, high-temperature cycle performance and high-temperature storage performance.

SOLID ELECTROLYTE MATERIAL AND BATTERY

Resumen de: EP4708396A1

A solid electrolyte material (3) configured to suppress a decrease in ion conductivity, the solid electrolyte material comprising a polymer electrolyte, an inorganic filler and succinonitrile, the polymer electrolyte comprises an anionic polymer.

COMPOSITE SOLID ELECTROLYTE MEMBRANE, MANUFACTURING METHOD THEREFOR, AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: EP4708433A1

The present invention relates to a composite solid electrolyte membrane, a method of preparing same, and an all-solid-state battery comprising same. The composite solid electrolyte membrane comprising: a solid electrolyte membrane comprising a solid electrolyte and a binder; and an ionic liquid, wherein the solid electrolyte membrane comprises a plurality of pores, the ionic liquid is impregnated in the plurality of pores, and the anion of the ionic liquid is (CF₃SO₂)₂N^-.

BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD

Resumen de: EP4707835A1

Disclosed is a battery diagnosing apparatus and a battery diagnosing method. The battery diagnosing apparatus includes a data obtaining unit configured to obtain a first profile representing a capacity-voltage relationship of a battery cell containing at least two kinds of active materials, and a processor configured to generate a plurality of comparison profiles based on a plurality of electrode profiles included in an electrode profile map. The processor is configured to select, as a second profile, one comparison profile from the plurality of comparison profiles by comparing each of the plurality of comparison profiles with the first profile. The processor is configured to determine at least one diagnostic factor representing a degradation state of the battery cell based on the second profile.

POSITIVE ELECTRODE, MANUFACTURING METHOD THEREFOR, AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: EP4708375A1

The present invention relates to a positive electrode, a manufacturing method therefor, and an all-solid-state battery including same, wherein the positive electrode includes a positive electrode active material layer, the positive electrode active material layer includes a positive electrode active material, a sulfide-based solid electrolyte, and a binder, the binder includes a first binder having a weight average molecular weight of 300,000 g/mol or more and a second binder having a weight average molecular weight of 50,000 g/mol or less, and the second binder includes a thiol group. According to the present invention, it is possible to provide: the positive electrode having excellent adhesion between interfaces and/or between components in the positive electrode active material layer as well as excellent dispersibility, and having excellent high-rate discharge efficiency at 1.0C and capacity retention across cycles; a manufacturing method for the positive electrode; and an all-solid-state battery having excellent performance by including the positive electrode.

SILICON CARBON COMPOSITE, NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE COMPOSITION, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

Resumen de: EP4707237A1

The present invention relates to: a silicon carbon composite having a peak A present in a range of 130 ppm to 150 ppm, a peak B present in a range of 110 ppm to 130 ppm, and a peak C present in a range of 15 ppm to 40 ppm during 13C-NMR analysis, and satisfying equation 1 below; a negative electrode active material comprising same; a negative electrode composition; a negative electrode; a lithium secondary battery; a battery module; and a battery pack. Equation 1 0.3 ≤ peak C intensity/(peak A intensity + peak B intensity) ≤ 2.1.

ELECTROLYTE AND SECONDARY BATTERY

Resumen de: EP4708443A1

An electrolyte and a secondary battery, belonging to the technical field of secondary batteries. The electrolyte includes a lithium salt and a solvent. The solvent includes a cyclic carbonate, a linear carbonate, and a carboxylic ester. A mass percentage of the cyclic carbonate is 8% to 24%. The linear carbonate includes a dimethyl carbonate and at least one of a methyl ethyl carbonate and a diethyl carbonate. A mass percentage of a mass sum of the methyl ethyl carbonate and the diethyl carbonate is 2% to 10%. A mass percentage of the carboxylic ester is 20% to 40%. The carboxylic ester includes a first component and a second component. Viscosities of the first and second components at 25±2°C are respectively 0.4 mPa·s to 0.5 mPa·s and 0.3 mPa·s to 0.4 mPa·s. Mass percentages of the first and second components are respectively 15% to 40% and 0% to 15%.

BONDING STRUCTURE, BONDING METHOD, INSULATING ADHESIVE TAPE AND BATTERY

Resumen de: EP4707352A1

The present disclosure provides a bonding structure, a bonding method, an insulating adhesive tape, and a battery. The insulating adhesive tape includes a first bonding area and a second bonding area disposed at intervals, and a non-bonding area disposed between the first bonding area and the second bonding area. The first bonding area is configured to bond a cell, the second bonding area is configured to bond a welding area formed by a tab of the cell and a current collector, and the non-bonding area is configured to correspond to a bending area of the tab.

BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4708508A1

Disclosed is a battery pack and a vehicle including the same. The battery pack includes a plurality of battery cells; a pack case configured to accommodate the plurality of battery cells, so that at least a portion of the pack case is separated; a reinforcing member inserted into the separated portion of the pack case; and a connection member configured to connect the pack case and the reinforcing member.

POUCH TYPE BATTERY CELL AND VEHICLE INCLUDING SAME

Resumen de: EP4708546A1

Disclosed are a pouch-type battery cell which is thick and thus has improved durability and stability while maintaining the formability and insulation performance of a pouch and a vehicle including the same. The battery cell includes an electrode assembly formed by overlapping a plurality of electrodes, a packaging material folded to wrap around the electrode assembly to form a rectangular pouch, a sealing part formed by overlapping and contacting edges of the folded packaging material in which the electrode assembly is wrapped, and a pair of leads whose ends are connected to the plurality of electrodes inside the packaging material and whose other ends are exposed to the outside of the packaging material. The pair of leads are exposed in the same direction.

ELECTROLYTE ADDITIVE, ELECTROLYTE AND BATTERY

Resumen de: EP4708441A1

Provided are an electrolyte additive, an electrolyte, and a battery. The electrolyte additive includes a first additive, a second additive, and a third additive. The first additive includes a compound represented by formula 1:where: R₁ is selected from C atom or O atom; R₂ is selected fromR₃ is selected from methylene,R₄ is selected fromand at least one of R₂, R₃, and R₄ contain sulfur atom. The second additive includes at least one of a compound represented by formula 2 or a compound represented by formula 3:where X includes P atom or B atom. The third additive includes a compound represented by formula 4: R-N=C=O formula 4, where R includes at least one of alkyl, O=C=N-substituted alkyl, cycloalkyl, O=C=N-substituted cycloalkyl, aryl, or O=C=N-substituted aryl. In this way, a stable and low-impedance interface film may be formed on an electrode surface, reducing impedance and gas production of the battery, and improving cycle performance of the battery.

BATTERY MODULE, BATTERY PACK, AND VEHICLE

Resumen de: EP4708535A1

Disclosed are a battery module, a battery pack, and a vehicle. A battery module according to an embodiment of the present disclosure may include: a plurality of battery cells; a module case in which the plurality of battery cells are stored; and a flame propagation prevention member disposed between the plurality of battery cells inside the module case, and the flame propagation prevention member may be configured to change its shape when a thermal event occurs so as to block a gap formed between the module case and the battery cells.

ADDITIVE COMPOSITION, ELECTROLYTE COMPRISING SAME, AND BATTERY

Resumen de: EP4708439A1

The present application provides an additive composition, as well as an electrolytic solution and a battery thereof, wherein the additive composition comprises a first additive and a second additive; the first additive comprises a compound having a structure represented by formula 1, and the second additive comprises a silane additive. The additive composition provided by the present application is able to improve the cycling performance and high-temperature performance of the battery when used in an electrolytic solution.

BATTERY MODULE, BATTERY PACK AND VEHICLE

Nº publicación: EP4708465A1 11/03/2026

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD

Resumen de: EP4708465A1

Disclosed are a battery module, a battery pack, and a vehicle. The battery module includes a plurality of battery cells; a module case in which the plurality of battery cells are accommodated; and a flame suppression pad disposed between the plurality of battery cells inside the module case, and the flame suppression pad is coated with an insulating member or contains an insulating member therein.