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SULFIDE-BASED SOLID ELECTROLYTE AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: EP4773288A1

The present disclosure relates to a sulfide-based solid electrolyte and an all-solid-state battery including same, and more particularly, to a sulfide-based solid electrolyte comprising three metals, including germanium (Ge), silicon (Si), and antimony (Sb), thereby to improve the ionic conductivity.

SULFIDE-BASED SOLID ELECTROLYTE AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: EP4773289A1

The present disclosure relates to a sulfide-based solid electrolyte and an all-solid-state battery including same, and more particularly, to introducing various heterogeneous elements into the sulfide-based solid electrolyte to cause the disorder of the structure, while maintaining the crystal structure of the sulfide-based solid electrolyte, thereby improving the mobility of lithium ions and the ionic conductivity.

BATTERY PACK AND DEVICE COMPRISING SAME

Resumen de: EP4773390A1

A battery pack according to embodiments of the present disclosure includes: a pack frame on which a plurality of battery cell assemblies are mounted; at least one venting part located on a side face of the pack frame, wherein the side face of the pack frame is a cavity structure in which an empty space is formed between an outer face of the pack frame and an inner face of the pack frame; at least one pair of guide plates are disposed in the empty space formed on the side face of the pack frame formed with the venting part; the pair of guide plates are disposed symmetrically with each other with the venting part interposed between them; and the pair of guide plates are disposed so as to have an inclination that is lifted in a direction toward the venting part with respect to the lower part of the pack frame.

METHOD FOR MEASURING RESISTANCE OF TARGET ELECTRODE AND ELECTRODE DEVICE FOR PERFORMING SAME

Resumen de: EP4772889A1

Disclosed are a method and an electronic device for measuring the resistance of a target electrode, the method comprising the steps of: acquiring a chart related to the electrical conductivity of a target electrode according to changes in frequency after the target electrode has been immersed in an electrolyte for a predefined time or longer; determining a first point and a second point on the electrical conductivity graph of the target electrode, the graph being included in the chart; and measuring the resistance of the target electrode on the basis of the first point and the second point.

METHOD AND SYSTEM FOR TRIGGERING THERMAL RUNAWAY OF BATTERY

Resumen de: EP4773328A1

0001 A method and system for triggering battery thermal runaway, which can trigger thermal runaway of a battery cell during a battery testing process. The method includes: charging a target battery cell in a battery, such that an energy level of the target battery cell is greater than an energy level of the other battery cells in the battery; and charging the battery in a case where the energy level of the target battery cell is greater than the energy level of the other battery cells.

ANODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4773249A1

A negative electrode includes a negative electrode active material layer that includes a negative electrode active material, a binder, a first conductive agent, and a second conductive agent. In the negative electrode, the number average length of the first conductive agent measured using an atomic force microscopy (AFM) is 0.7 µm to 6.0 µm, the ACA, which is defined using the BET specific surface area and the weight% of each of the negative electrode active material and the first and second conductive agents as factors, is 0.5 to 5.0, and the CA, which is defined using the BET specific surface area and the weight% of each of the first and second conductive agents as factors, is 0.1 to 8.0.

BATTERY PACK AND COVER FOR BATTERY PACK

Resumen de: EP4773378A1

0001 The present invention discloses a battery pack and a cover for the same. The battery pack according to the present invention may include: a pack case having an accommodating space with one open side, the pack case accommodating a plurality of battery modules therein; and a cover covering the one open side of the pack case and provided with a graphene coating layer thereon.

LITHIUM SECONDARY BATTERY

Resumen de: EP4773301A1

0001 The present invention provides a lithium secondary battery having improved high-temperature cycle characteristics. In detail, the present invention relates to, and provides a lithium secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes lithium iron phosphate, a loading amount of the positive electrode is from 32 mg/cm<2> to 60 mg/cm<2>, the electrolyte includes a first organic solvent, a second organic solvent, a first additive, and a second additive, the first organic solvent is a cyclic lactone compound, the second organic solvent is a carbonate organic solvent, the first additive is lithium nitrate (LiNO<3>), and the second additive is a sulfonylimide compound.

BATTERY CELL, BATTERY, ELECTRIC APPARATUS, AND ENERGY STORAGE DEVICE

Resumen de: EP4773353A1

0001 Provided in the embodiments of the present application are a battery cell, a battery, an electric apparatus, and an energy storage device. The battery cell comprises a casing and an electrode assembly, wherein the casing comprises a casing body and an end cap, the casing body being provided with an opening and comprising a first wall, the first wall comprising a first opening portion and a first body portion, which are distributed in sequence in a first direction, the first direction being parallel to the thickness direction of the end cap, the first body portion being far away from the opening relative to the first opening portion, and the end cap being connected to the first opening portion and sealing the opening; and the electrode assembly is arranged in the casing body and comprises a negative electrode sheet, the negative electrode sheet comprising a negative electrode active material, the negative electrode active material comprising a silicon-based material, and the maximum thickness of the first opening portion being greater than the thickness of the first body portion. On the basis of the technical solution provided in the embodiments of the present application, the reliability of the battery can be improved.

TAB STRUCTURE AND WELDING TOOL

Resumen de: EP4773409A1

The present application provides an electrode tab structure and a welding tooling. The electrode tab structure includes multiple electrode tab units stacked and pre-welded together, and the electrode tab structure includes a first end face and a second end face arranged opposite to each other. The first end face of the electrode tab structure is configured to be abutted against a welding head, and the second end face of the electrode tab structure is configured to be abutted against a welding platform. A difference between a highest point and a lowest point of a metallographic section of the first end face in a first direction being H1, a difference between a highest point and a lowest point of a metallographic section of the second end face in the first direction being H2, and H1 ≤ H2.

ELECTRODE SHEET ASSEMBLY, CYLINDRICAL BATTERY, BATTERY MODULE AND BATTERY PACK

Resumen de: EP4773316A1

0001 An electrode plate assembly, a cylindrical battery, and a battery module are provided. The electrode plate assembly includes a plurality of negative electrode plates, a plurality of positive electrode plates, and a plurality of separators. Each of the negative electrode plates includes a negative electrode coating portion and at least one negative electrode tab. Each of the positive electrode plates includes a positive electrode coating portion and at least one positive electrode tab. The plurality of the negative electrode coating portions, the plurality of the separators, and the plurality of positive electrode coating portions are stacked and alternately arranged.

BATTERY MODULE CASE COVER AND BATTERY MODULE

Resumen de: EP4773377A1

0001 The present application provides a battery module box cover and a battery module. The battery module box cover includes: a box cover body, where welding holes are formed in the box cover body, and the welding holes penetrates through the box cover body; electrical connection sheets fixed on a side of the box cover body, where welding spots are arranged on the electrical connection sheets, and the welding spots are exposed through the welding holes; and welding hole sealing covers fixed on another side of the box cover body and configured for sealing the welding holes.

WRAPPING DEVICE AND WRAPPING METHOD FOR ELECTRODE ASSEMBLY

Resumen de: EP4773276A1

The present application provides a coating device and coating method for an electrode assembly. The electrode assembly includes an electrode main body, the electrode main body has a first direction, a second direction and a third direction that are orthogonal to each other, and includes two main surfaces, two end surfaces, and two side surfaces, and the coating device includes a discharge assembly, a cutting assembly and a first coating assembly. The discharge assembly is used to store and release a material strip, which includes a plurality of coating films connected in sequence along a length direction of the material strip, and each coating film includes two main coating areas spaced apart from each other and a connecting area connected between the two main coating areas. The cutting assembly is used to cut a head end coating film located at a head end of the material strip from the material strip. The first coating assembly is used to coat the first of the two end surfaces with the connecting area of the head end coating film, and to coat each of the two main surfaces with corresponding one of the two main coating areas, so as to form an electrode coating body. Through the above manner, the action complexity of a coating process can be simplified.

BATTERY INSERTION DEVICE, BATTERY ASSEMBLY METHOD, AND BATTERY ASSEMBLY SYSTEM

Resumen de: EP4773325A1

The present application discloses a battery insertion device, a battery assembly method, and a battery assembly system. The insertion device comprises a machine frame, a bearing mechanism, and an insertion mechanism; the bearing mechanism is arranged on the machine frame, and is used for bearing a bottom cover and an electrode assembly supported above the bottom cover; and the insertion mechanism is arranged on the machine frame, and comprises a case fixing mechanism and a tab part guide mechanism, the case fixing mechanism is used for fixing a case, and the tab part guide mechanism and the case fixing mechanism both can get close to or away from the bearing mechanism, wherein the case fixing mechanism is configured to sleeve the case onto the outer side of the electrode assembly by means of an open end when moving close to the bearing mechanism; and the tab part guide mechanism is configured to guide a tab part to penetrate out of an accommodating cavity through a through hole when the case is sleeved on the electrode assembly. According to the present application, by means of the mode, the tab part smoothly extends out of the case, thereby achieving the accurate insertion of the electrode assembly, reducing the battery preparation difficulty, and improving the assembly efficiency and the yield of batteries.

LITHIUM SECONDARY BATTERY

Resumen de: EP4773299A1

0001 The present invention provides a lithium secondary battery having improved high-temperature cycle characteristics. Specifically, the present invention relates to a lithium secondary battery comprising a positive electrode, a negative electrode, a separator, and an electrolyte, and provides a lithium secondary battery wherein: the positive electrode comprises lithium iron phosphate as a positive electrode active material; the loading amount of the positive electrode is 32 mg/cm<2> to 60 mg/cm<2>; the electrolyte comprises a lithium salt, a first organic solvent, a second organic solvent, a first additive, and a second additive; the first organic solvent is a cyclic lactone compound; the second organic solvent is a carbonate organic solvent; the first additive is lithium nitrate (LiNO<3>); and the second additive is a sulfonylimide compound.

BATTERY MODULE AND BATTERY PACK INCLUDING SAME

Resumen de: EP4773388A1

Disclosed is a battery module, which includes a cell stack including stacked battery cells; a module case having a gas venting hole in a lower plate and configured to accommodate the cell stack; and a venting guide member including a body portion having a property that is bendable by heat and a needle portion coupled to the body portion, and the venting guide member is disposed on the lower plate such that when a temperature of the body portion increases higher than a predetermined temperature, the body portion is bent and the needle portion faces and contacts the battery cell.

ELECTRODE SHEET, BATTERY CELL, AND BATTERY

Resumen de: EP4773404A1

The present application provides an electrode plate, a cell, and a battery. The electrode plate includes a current collector and an electrode tab, where the current collector includes a support layer and a conductive layer. The conductive layer is located at least on a surface of a side of the support layer, and the electrode tab includes a main body portion and a connecting portion adjoining the main body portion, the connecting portion being connected to the conductive layer, and the main body portion extending in a direction away from the current collector. In an MD direction of the electrode plate, a length of the connecting portion of the electrode tab is greater than a length of the main body portion of the electrode tab. In this arrangement, part of the electrode tab is lengthened, so that the electrode tab is integrally divided into a main body portion and a connecting portion. The main body portion still maintains an original specification size, still meets the requirements of an original design, and does not affect an original basic function of the electrode tab, while the connecting portion with a relatively large length has a welding relationship with the conductive layer of the current collector. In this way, the current carrying capacity of the formed weld is increased, the temperature rise of charging and discharging can be lowered, and the problem of a temperature rise of the weld that is easily caused by insufficient current carrying capacity of the weld of t

BATTERY CELL ASSEMBLY AND BATTERY PACK INCLUDING SAME

Resumen de: EP4773368A1

A battery cell assembly according to certain aspects of the present disclosure comprises: a battery cell stack in which a plurality of battery cells are stacked; a frame member that houses the battery cell stack; and an inlet and an outlet that circulate a coolant into the frame member, wherein the coolant is flowed into the frame member through the inlet and discharged through the outlet, wherein a reinforcing plate is inserted into at least one of an upper part or a lower part of the frame member, and wherein the reinforcing plate includes a reinforcing main body that is located inside the frame member, and at least one reinforcing protrusion that protrudes from one surface of the reinforcing main body toward one surface of the frame member.

BATTERY AND ELECTRICAL DEVICE

Resumen de: EP4773389A1

A battery (100) and an electrical device, relating to the field of batteries. The battery (100) comprises battery cells (20) and a support member (30). Each battery cell (20) comprises a housing (21) and a pressure relief component (212). The housing (21) comprises a first wall portion (211), and the pressure relief component (212) is provided on the first wall portion (211). The pressure relief component (212) comprises a first groove (2121), and is configured to crack along the first groove (2121) during pressure relief of the battery cell (20). The support member (30) supports the first wall portion (211). The support member (30) has a support surface (31) facing the first wall portion (211), and the support surface (31) is provided with a clearance portion (32). In the direction of thickness of the first wall portion (211), a projection of the first groove (2121) lies within the clearance portion (32). By providing the clearance portion (32) on the support member (30) and by allowing the projection of the first groove (2121) in the direction of thickness of the first wall portion (211) to lie within the clearance portion (32), the clearance portion (32) can provide clearance for the first groove (2121). Thus, during pressure relief of the battery cell (20), the support member (30) is less likely to abut against the outer side of the first groove (2121), reducing the likelihood of suppressing the cracking of the first groove (2121). This arrangement ensures that the first

CONNECTOR, AND BATTERY ASSEMBLY AND BATTERY MODULE COMPRISING SAME

Resumen de: EP4773417A1

The present invention relates to a connector. The connector according to one aspect of the present invention is a battery cell connector for electrically connecting a battery cell to the outside, and comprises: a base member having a lead surface on which an electrode lead of the battery cell can be placed; and a conducting assembly coupled to the base member so as to be electrically connectable to the electrode lead placed on the lead surface, wherein the conducting assembly can include: a conductive contact member movably coupled to the base member so that at least a part thereof can protrude from the lead surface of the base member; and an elastic member for elastically supporting the contact member toward the lead surface of the base member.

BATTERY TEMPERATURE ESTIMATION DEVICE AND METHOD FOR OPERATING SAME

Resumen de: EP4773334A1

A battery temperature estimation device according to an embodiment disclosed in this document may include an impedance measurement unit configured to measure frequency-specific impedance of a battery; a memory configured to store a temperature-impedance imaginary part table according to a frequency; and a controller configured to estimate a temperature of the battery through the temperature-impedance imaginary part table based on an imaginary part of the frequency-specific impedance.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4773385A1

A battery cell (20), a battery (100), and an electric device are disclosed. The battery cell (20) includes a housing (21) and a pressure relief component (214), where the housing (21) has a first wall portion (211), the first wall portion (211) has a first outer surface (2111) facing away from an interior of the housing (21). The pressure relief component (214) is disposed on the first wall portion (211), where the pressure relief component (214) includes a first weak portion (2145), and the pressure relief component (214) is configured as capable of rupturing along at least a part of the first weak portion (2145) during pressure relief of the battery cell (20). A minimum radial dimension of the first outer surface (2111) is A, a radial direction is a direction passing through a center point of the first outer surface (2111), and an outer edge of the first outer surface (2111) is offset toward the center point of the first outer surface (2111) by a predetermined distance L₁ to form a first edge (2143), where L₁ = 0.05*A. Along a thickness direction of the first wall portion (211), a projection of the first weak portion (2145) on the first outer surface (2111) is located within the first edge (2143). The first edge (2143) defines a first region (2144) with lower stiffness, so that a thickness of the first weak portion (2145) located in the first region (2144) is greater under the same burst pressure, making the first weak portion (2145) less likely to rup

ELECTROCHEMICAL DEVICE AND ELECTRIC APPARATUS

Resumen de: EP4773397A1

An electrochemical apparatus (100) and an electric device (1000) are provided. The electrochemical apparatus (100) includes a housing (10), an electrode assembly (20), and a first adhesive component (30). The electrode assembly (20) is disposed within the housing (10). The electrode assembly (20) includes a first side surface (21) and a second side surface (22) opposite each other along a first direction, and a third side surface (23) and a fourth side surface (24) opposite each other along a second direction. The second direction is perpendicular to the first direction. The first adhesive component (30) includes a first side portion (31) and a second side portion (32) opposite each other. The first side portion (31) includes a first adhesive region (311), a first non-adhesive region (312), and a second adhesive region (313) arranged sequentially. The first adhesive region (311) is adhered to the first side surface (21). The second adhesive region (313) is adhered to the second side surface (22). The second side portion (32) includes a third adhesive region (321). The third adhesive region (321) is adhered to the housing (10). Along the second direction, a projection of the first non-adhesive region (312) overlaps the third side surface (23), and a projection of the third adhesive region (321) overlaps the third side surface (23). The first non-adhesive region (312) of the first adhesive component (30) is not adhered to the third side surface (23), which is conducive to reduc

BATTERY PACK AND ENERGY STORAGE APPARATUS

Resumen de: EP4773375A1

0001 A battery pack according to certain embodiments of the present disclosure may comprise a cell module assembly including a battery cell stack in which a plurality of battery cells are stacked, a lower pack case including a bottom plate that supports a lower part of the cell module assembly and a fixing plate that extends from an edge of the bottom plate toward an upper part, an upper pack case that covers an upper surface, both side surfaces, and a rear surface of the cell module assembly and couples with the lower pack case, a lower fixing part that is formed on the fixing plate of the lower pack case, and an upper fixing part that is formed on the upper pack case, and at least partially overlaps with the lower fixing part to be fixed to each other when the lower pack case and the upper pack case are assembled.

NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Nº publicación: EP4773306A1 08/07/2026

Solicitante:

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

Resumen de: EP4773306A1

The present disclosure relates to a non-aqueous electrolyte comprising a lithium salt, an organic solvent and an additive, wherein the additive includes a compound represented by Formula 1, and the additive includes at least one of the compound represented by Formula 1, ethylene sulfate, and 1,3-propane sultone, and the compound represented by Formula 1 is included in the non-aqueous electrolyte in an amount of 0.25 wt% to 1.60 wt%, and a total content of the compound represented by Formula 1, ethylene sulfate, and 1,3-propane sultone may be 0.25 wt% to1.60 wt% based on a total weight of the non-aqueous electrolyte.In Formula 1, R₁ is -O-NO₂, and L₁ is an alkyleneoxy group having 1 to 5 carbon atoms, M is a metal cation or an organic cation, a is the valence of M when M is a metal cation, a is 1 when M is an organic cation, and a=b.