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BATTERY SYSTEMS HAVING PRESSURE SENSING BATTERY MANAGEMENT SYSTEM AND BATTERY CELLS FOR PREVENTING BATTERY FIRES, AND APPLICATIONS THEREOF

Resumen de: EP4708471A1

Sensors and circuits for batteries are provided that prevent battery fires. The sensors and circuits are part of a battery management system that detects battery cell swelling and changes in the internal pressure of battery cells and removes the battery cells from service before they vent and catch on fire or explode. The sensors and circuits continually monitor every battery cell for swelling/increases in internal pressure that are indicative of the formation of flammable and explosive gases within the battery cells, and a battery management system that includes one or more of the sensors and circuits removes battery cells with issues from service before they vent and catch on fire or explode.

BRACKET STRUCTURE AND BATTERY PACK

Resumen de: EP4708598A1

A bracket structure and a battery pack are provided herein. The bracket structure includes a mounting bracket (1), the mounting bracket (1) comprises a first mounting end (1A) and a second mounting end (1B) disposed opposite to each other in a first direction(Z), the first mounting end (1A) is configured to mount a copper busbar (2), the second mounting end (1B) is configured to be connected to a battery box(11), at least one side of the mounting bracket (1) in a second direction (Y) is configured to mount a harness (3), the second direction (Y) intersects with the first direction(Z); in the first direction(Z), the harness (3) is located between the first mounting end (1A) and the second mounting end(1B).

BATTERY AND METHOD FOR MANUFACTURING THE SAME

Resumen de: EP4708486A1

A battery (100), including a case (120) including a protrusion (121, 121a) protruding from an upper surface (124) thereof, the protrusion (121, 121a) including an inner step surface (125) and an outer step surface (126), and an electrode assembly being accommodated in the case (120), a cap plate (110, 110') including a groove portion (115) on a lower surface (114) thereof corresponding to the protrusion (121, 121a), wherein the protrusion (121, 121a) is inserted into the groove portion (115) to couple the cap plate (110, 110') to the case (120), and a welding portion (130) at a boundary of the case (120) and the cap plate (110, 110').

LEAD TAB WITH IMPROVED ADHESION

Resumen de: EP4708428A1

The present invention provides a lead tab including a metal substrate including aluminum and a metal layer laminated on both sides of the metal substrate, wherein the metal layer includes 70 to 99.9 wt% of chromium, wherein the lead tab has a gloss of 60 to 100 (Gs 60°), and has a water contact angle of 60 to 80°.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4708403A1

A secondary battery, including: a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive current collector and a positive active material layer formed on the positive current collector, the positive active material layer includes a positive active material and polyvinyl butyral, and the electrolyte includes lithium difluorophosphate and a trinitrile compound. A shedding resistance of the positive electrode is improved, an initial resistance of the secondary battery is further reduced, and a low-temperature rate characteristic is further improved.

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.

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.

SECONDARY BATTERY AND SECONDARY BATTERY MODULE INCLUDING SAME

Resumen de: EP4708526A1

A secondary battery (1), including an electrode assembly (50) including a first electrode (300), a second electrode (302), and a separator (304), a case (20) configured to accommodate the electrode assembly (50), the case (20) having one opening, a cap plate (11) coupled to the one opening of the case (20), the cap plate (11) including an injection port (12) into which an electrolyte is injected, and a gas discharge portion (100) coupled to the injection port (12) of the cap plate (11), the gas discharge portion (100) configured to discharge gas generated inside the case (20).

LEAD TAB WITH IMPROVED WELDING PERFORMANCE

Resumen de: EP4708426A1

The present invention provides a lead tab comprising: a metal substrate including aluminum; and a metal layer disposed on both sides of the metal substrate; wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has an ultrasonic welding strength of 70 kgf/mm² or more.

LEAD TAB WITH IMPROVED WELDING PERFORMANCE

Resumen de: EP4708427A1

The present invention provides a lead tab comprising: a metal substrate including aluminum; and a metal layer disposed on both sides of the metal substrate; wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has a laser welding strength of 40 kgf/mm² or more.

POSITIVE ELECTRODE FOR ALL-SOLID-STATE BATTERY, ALL-SOLID-STATE BATTERY INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME

Resumen de: EP4708377A1

Disclosed are positive electrodes and all-solid-state batteries including the positive electrodes. A positive electrode includes a positive electrode current collector, a positive electrode active material layer on the positive electrode current collector, and a porous film in the positive electrode active material layer. The positive electrode active material layer includes positive electrode active material particles and solid electrolyte particles. The positive electrode active material layer has a first section and a second section that are distinct across the porous film. The first section is between the positive electrode current collector and the porous film. An average particle diameter of the solid electrolyte particles in the first section is different from an average particle diameter of the solid electrolyte particles in the second section.

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

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.

ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: EP4708406A2

A first metal layer (11) is provided with a plurality of first pores, a second metal layer (12) is provided with a plurality of second pores, an insulation layer (13) is provided with a plurality of second pores, and the first pores, the second pores, and the third pores being configured to transmit ions. The electrode plate (10) includes a first tab (17) and a first insulation adhesive (17a), where a first portion of the first tab (17) is connected to the first metal layer (11), along the thickness direction of the electrode plate (10), a projection of a third portion is located outside a projection of the first metal layer (11), and the first insulation adhesive (17a) is disposed on the surface of the third portion and that faces the second metal layer (12), and the first insulation adhesive (17a) is connected to the first metal layer (11). A first active material layer (14) is disposed on a surface of the first metal layer (11) and facing away from the insulation layer (13), and a second active material layer (15) is disposed on a surface of the second metal layer (12) and facing away from the insulation layer (13), where the first active material layer (14) and the second active material layer (15) are of opposite polarities.

BATTERY CASE AND MULTI-LAYER BATTERY SYSTEM

Resumen de: EP4708512A1

Provided are a battery box and a multilayer battery system. The multilayer battery system includes a battery box, a conductive assembly, and multiple cell assemblies (20). The battery box includes a bottom guard plate (11), a box cover (13), and a box body connected to the bottom guard plate (11) and the box cover (13). The box body includes at least two splicing boxes (12) that are stacked. For each splicing box (12), the upper end and the lower end of the splicing box (12) are each provided with an opening. The cell assemblies (20) are stacked. Each splicing box (12) accommodates a cell assembly (20). The conductive assembly is disposed in the battery box and configured to be electrically connected to the cell assemblies (20).

POLE, COVER PLATE ASSEMBLY AND BATTERY CELL

Resumen de: EP4708480A2

The present application provides a pole for a battery cell, a cover plate assembly and a battery cell, related to the field of battery technology. The pole includes a first metal part and a second metal part; where the first metal part defines a first concave portion and a first convex portion, and the first convex portion protrudes from an opening of the first concave portion along a direction away from the first concave portion; the second metal part includes a terminal and a second convex portion, where the second convex portion protrudes outward from the terminal, and a side of the terminal close to the second convex portion is provided with a second concave portion; and, the first convex portion is embedded in the second concave portion, and the second convex portion is embedded in the first concave portion.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4708448A1

Disclosed is a battery module, and a battery pack and a vehicle including the same. The battery module includes a battery cell stack in which a plurality of battery cells are stacked; a case in which the battery cell stack is accommodated; and a cooling member disposed between the plurality of battery cells, wherein the battery cells include a first battery cell having electrode leads respectively formed at both sides thereof, and a second battery cell having both electrode leads formed at one side thereof.

BATTERY CELL AND BATTERY MODULE INCLUDING THE SAME

Resumen de: EP4708474A1

A battery cell includes a cell case including a sidewall forming an accommodation space and an upper plate having a through-hole, an electrode assembly disposed in the accommodation space of the cell case, a first current collector electrically connected to a first electrode tab of the electrode assembly, an electrode terminal electrically connected to the first current collector through the through-hole, and a gasket disposed between the electrode terminal and the upper plate and having electrical insulation properties, wherein the upper plate includes a flange portion formed along an edge of the through-hole, and the flange portion extends toward the inside of the cell case and includes an inclined surface extending from the upper plate.

BATTERY, ELECTRIC DEVICE, AND METHOD FOR MANUFACTURING BATTERY

Resumen de: EP4708534A2

Embodiments of the present application provide a battery, a power consumption apparatus, and a method and an apparatus for preparing a battery. The battery includes a plurality of battery cells arranged in a first direction, where the battery cell is provided with a pressure relief mechanism, configured to be actuated when internal pressure or temperature of the battery cell reaches a threshold value, to relieve the internal pressure; and a protecting plate, where the protecting plate is attached to a surface of the battery cell provided with the pressure relief mechanism to protect the battery cell, the protecting plate is provided with a plurality of openings, and an opening is provided corresponding to the pressure relief mechanism to expose the pressure relief mechanism via the opening, and two openings corresponding to the pressure relief mechanisms of two adjacent battery cells are provided in a staggered manner in the first direction. The battery, the power consumption apparatus, the method and the apparatus for producing the battery of the present application can enhance safety performance of the battery.

BUS VOLTAGE MODULATION METHOD FOR DYNAMICALLY RECONFIGURABLE SERIES-CONNECTED BATTERY SYSTEM

Resumen de: EP4708621A1

The present disclosure discloses a bus voltage modulation method for a series dynamic reconfiguration battery system, and belongs to the technical field of energy storage for new energy power systems, comprising: numbering all battery modules as i, collecting a voltage value of each battery module, and arranging in a descending order according to magnitudes of the voltage values; selecting a battery module corresponding to the highest voltage value; determining whether the serial number i of the selected battery module is less than a total number N of series battery modules, if a determination result is YES, accumulating voltage values corresponding to the selected battery modules, and determining whether a voltage accumulation value of the battery modules is within a preset range; and performing an i++ operation according to the voltage accumulation value of the battery modules, and repeating the above content until an output bus voltage meets requirements for the preset range. A dynamic reconfiguration battery system based on a software-defined technology of the present disclosure can reconstruct and output a desired power bus voltage according to voltages of respective battery modules in real time to meet the requirements for the output power bus voltage.

ELECTROLYTE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS

Resumen de: EP4708404A2

An electrolyte includes lithium bis(fluorosulfonyl)imide, a sulfur-containing compound, and propyl propionate. Based on a mass of the electrolyte, a mass percentage of lithium bis(fluorosulfonyl)imide is A%, a mass percentage of the sulfur-containing compound is B%, and a mass percentage of propyl propionate is D%, where 0.3 ≤ B/A ≤ 4, and 30 ≤ D ≤ 40. With the above configuration, the risk of increased alternating current impedance of the electrochemical apparatus under high voltage can be reduced, and the drop resistance and intermittent cycling performance of the electrochemical apparatus can be improved.

ALL-SOLID-STATE BATTERY

Resumen de: EP4708435A1

An all-solid-state battery including a battery body including a negative electrode layer, a positive electrode layer, and a solid electrolyte layer between the negative electrode layer and the positive electrode layer; a case accommodating the battery body; and a fire-extinguishing agent inside the case, wherein the fire-extinguishing agent is configured to produce a solid aerosol.

NEGATIVE ELECTRODE FOR ALL-SOLID-STATE BATTERY, ALL-SOLID-STATE BATTERY, AND METHOD OF FABRICATING THE SAME

Nº publicación: EP4708381A2 11/03/2026

Solicitante:

SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd

Resumen de: EP4708381A2

Disclosed are negative electrodes, all-solid-state batteries, and fabrication methods thereof. The all-solid-state battery includes a positive electrode layer, a negative electrode layer including a negative electrode current collector, and a negative electrode coating layer on the negative electrode current collector, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The negative electrode layer includes lithiophilic metal, carbon, an additive, and a porous polymer composite. The porous polymer composite has a particulate shape. The additive includes a binder. An amount of the porous polymer composite in the negative electrode coating layer is greater than the amount of the additive in the negative electrode coating layer.