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LastUpdate Última actualización 23/03/2026 [07:02:00]
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Publicaciones de solicitudes de patente de los últimos 60 días/Applications published in the last 60 days
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POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

NºPublicación:  EP4711339A2 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4711339_PA

Resumen de: EP4711339A2

Disclosed are a positive electrode for a rechargeable lithium battery including a positive active material including a small particle diameter monolith particles having a particle diameter of about 1 µm to about 8 µm as a nickel-based lithium metal oxide, and a large particle diameter secondary particles having a particle diameter of about 10 µm to about 20 µm as a nickel-based lithium metal oxide, wherein an X-ray diffraction peak intensity ratio (I(003)/I(104)) of the positive electrodeis greater than or equal to about 3, a method of preparing the same, and a rechargeable lithium battery including the positive electrode.

COMPOSITE POSITIVE-ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF, POSITIVEELECTRODE PLATE, SECONDARY BATTERY, AND BATTERY MODULE, BATTERY PACK, AND APPARATUS CONTAINING SUCH SECONDARY BATTERY

NºPublicación:  EP4712159A2 18/03/2026
Solicitante: 
CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD [HK]
Contemporary Amperex Technology (Hong Kong) Limited
EP_4712159_A2

Resumen de: EP4712159A2

This application provides a composite positive-electrode material and a preparation method thereof, a positive-electrode plate, a secondary battery (5), and a battery module (4), a battery pack (1), and an apparatus containing such secondary battery (5). The composite positive-electrode material includes a core and a coating layer covering at least part of a surface of the core, where the core includes a positive-electrode pre-lithiation material, the positive-electrode pre-lithiation material includes a lithium-rich metal oxide, and the coating layer includes a positive-electrode active material.

METHOD AND SYSTEM FOR PREDICTING A PERFORMANCE OF A SECONDARY BATTERY

NºPublicación:  EP4711783A1 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4711783_PA

Resumen de: EP4711783A1

A method of predicting an electrical performance of a secondary battery. The method includes receiving design conditions of the secondary battery, receiving experiment data of the secondary battery, obtaining model parameters based on the experiment data and an electrochemical model, generating an electrochemical model library including the model parameters, and predicting the electrical performance of the secondary battery, having the design conditions, based on the electrochemical model library. The design conditions of the secondary battery include at least one of an electrode condition or an active material condition.

BATTERY ASSEMBLY

NºPublicación:  EP4712244A1 18/03/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD
EP_4712244_PA

Resumen de: EP4712244A1

Disclosed is a battery assembly. A battery assembly according to an embodiment of the present disclosure may include a frame providing a space therein and having an opening formed at the rear; a battery cell positioned inside the frame; a rear end cover coupled to the opening and having a venting hole; and a venting channel that has a body providing a space therein, an inlet hole formed in the body and communicating with the venting hole, and an outlet hole formed in the body and configured to be openable.

SECONDARY BATTERY PRESSING METHOD AND PRESSING DEVICE SUPPORTING SAME

NºPublicación:  EP4711124A1 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4711124_PA

Resumen de: EP4711124A1

A pressing apparatus according to embodiments of the present disclosure may include a driver, a cylinder configured to move in response to driving of the driver, and a regulator configured to control an internal pressure of the cylinder, wherein the cylinder moves upwardly by a first distance in response to driving of the driver, and a portion of the cylinder is configured to move upwardly by a second distance in response to the internal pressure of the cylinder controlled by the regulator to provide a pressing force to at least a portion of a secondary battery.

APPARATUS, SYSTEM AND METHOD FOR TRANSFERRING ELECTRODE ASSEMBLY

NºPublicación:  EP4712183A1 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4712183_PA

Resumen de: EP4712183A1

An apparatus for transferring an electrode assembly includes a base, a support extending from the base, a gripper connected to the support, a driver configured to drive the gripper so that the gripper grips the electrode assembly, a transferer connected to the base and configured to move along a rail, and a controller configured to control the driver so that the gripper grips a side surface of the electrode assembly in a direction perpendicular to a long axis of the electrode assembly and to control the transferer so that the electrode assembly moves along the rail.

ELECTRODE SHEET MANUFACTURING METHOD AND COATING DEVICE

NºPublicación:  EP4712149A1 18/03/2026
Solicitante: 
ZHEJIANG LIWINON ENERGY TECH CO LTD [CN]
ZHEJIANG LIWINON ENERGY TECHNOLOGY CO., LTD
EP_4712149_A1

Resumen de: EP4712149A1

A method of manufacturing an electrode sheet and a coating device. The method of manufacturing an electrode sheet includes the following steps: coating a to-be-coated surface of a current collector with a first active material to form a first wide layer; coating the to-be-coated surface with a second active material to form a narrow layer; and coating the to-be-coated surface with a third active material to form a second wide layer. The first wide layer, the narrow layer, the second wide layer, and the to-be-coated surface jointly define a tab welding groove. According to the method, the tab welding groove is processed through coating without laser cleaning, which helps to reduce manufacturing costs of an electrode sheet.

SECONDARY BATTERY AND ELECTRICAL APPARATUS

NºPublicación:  EP4712197A1 18/03/2026
Solicitante: 
NINGDE AMPEREX TECHNOLOGY LTD [CN]
Ningde Amperex Technology Ltd
EP_4712197_PA

Resumen de: EP4712197A1

A secondary battery includes an electrode assembly (100). The electrode assembly (100) is of a wound structure and includes a positive electrode plate (40), a negative electrode plate (30), a first separator (10), and a second separator (20). The negative electrode plate (30) is provided between the first separator (10) and the second separator (20). The first separator (10) includes an aqueous bonding layer (12), and the second separator (20) includes an oily bonding layer (22). The aqueous bonding layer (12) includes a first binder, and the oily bonding layer (22) includes a second binder.

BATTERY MODULE, AND BATTERY PACK AND ENERGY STORAGE SYSTEM INCLUDING THE SAME

NºPublicación:  EP4712207A1 18/03/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
EP_4712207_A1

Resumen de: EP4712207A1

Disclosed is a battery module, which includes: a plurality of battery cells stacked on one another and having electrode leads protruding therefrom; and at least one sensing assembly mounted to at least one side of the plurality of battery cells and configured to electrically connect the electrode leads, wherein the at least one sensing assembly includes: a sensing bus bar electrically connected to the electrode leads; and a plurality of sensing housing parts configured so that the sensing bus bar is mounted to a front surface thereof, the plurality of sensing housing parts allowing the electrode leads to pass therethrough toward the sensing bus bar, the plurality of sensing housing parts being detachably assembled with each other.

RAPID THERMAL PROCESSING METHODS AND APPARATUS

NºPublicación:  EP4711350A2 18/03/2026
Solicitante: 
QUANTUMSCAPE BATTERY INC [US]
QuantumScape Battery, Inc
EP_4711350_PA

Resumen de: EP4711350A2

Methods and apparatus for fabricating separators for solid-state lithium metal batteries employ rapid thermal processing. Aspects include high temperature sintering. Temperatures, durations of heat application, and proximity of heating elements to materials undergoing sintering combine to provide separators with desirable physical characteristics, including porosity, in a batch process.

ION CONDUCTIVE LAYER AND METHODS OF FORMING

NºPublicación:  EP4712189A1 18/03/2026
Solicitante: 
SAINT GOBAIN CERAMICS & PLASTICS INC [US]
Saint-Gobain Ceramics&Plastics, Inc
EP_4712189_PA

Resumen de: EP4712189A1

An ion conductive layer can include a hygroscopic ion conductive material, such as a halide-based material. In an embodiment, the ion conductive layer can include an organic material, ammonium halide, or a combination thereof.

CONDUCTIVE MODULE, COVER PLATE ASSEMBLY, AND BATTERY CELL

NºPublicación:  EP4712226A1 18/03/2026
Solicitante: 
HUIZHOU EVE POWER CO LTD [CN]
EVE POWER CO LTD [CN]
HUIZHOU EVE POWER CO., LTD,
Eve Power Co., Ltd
EP_4712226_PA

Resumen de: EP4712226A1

The present disclosure provides a conductive module (10a), a cover plate assembly (100), and a battery cell (1000). The conductive module (10a) includes a pole (101) and a terminal pressing block (102). The pole (101) includes a first-metal post (1) and a second-metal layer (2) bonded on a surface of the first-metal post (1). The second-metal layer (2) includes a clamping portion (2a). The terminal pressing block (102) is connected to the pole (101). The clamping portion (2a) is clamped between the first-metal post (1) and the terminal pressing block (102), thereby reducing a risk that the second-metal layer (2) is separated from the first-metal post (1).

CATHODE ACTIVE MATERIAL FOR ALL-SOLID-STATE BATTERY, AND ALL-SOLID-STATE BATTERY CATHODE AND ALL-SOLID-STATE BATTERY, WHICH COMPRISE SAME

NºPublicación:  EP4712162A1 18/03/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
EP_4712162_PA

Resumen de: EP4712162A1

The present invention relates to a positive electrode active material for all-solid-state batteries, and a positive electrode for all-solid-state batteries and an all-solid-state battery comprising same.

ELECTRICAL CELL MODULE, AND A BUSBAR ASSEMBLY FOR AN ELECTRICAL CELL MODULE

NºPublicación:  EP4712232A1 18/03/2026
Solicitante: 
FORTESCUE ZERO LTD [GB]
Fortescue Zero Limited
EP_4712232_PA

Resumen de: EP4712232A1

A busbar assembly for an electrical cell module is disclosed having a pair of opposing module end plates supporting an adjacent pair of cell stacks. The assembly includes a frame member having first and second engaging means to cooperatingly mount the busbar assembly, in an assembled position, to the module end plates, and a receiving portion having a series of apertures, extending between upper and lower faces. The assembly includes a plurality of busbar elements, each having a first surface and an opposing second surface, wherein each aperture of the receiving portion receivingly engages at least one busbar element with its first surface oriented towards the lower face. Each aperture includes a support portion and a retaining protrusion to cooperatingly restrict relative movement of the busbar elements between the upper lower faces of the receiving portion as the assembly is mounted to the electrical cell module in the assembled position.

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

NºPublicación:  EP4712152A1 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4712152_PA

Resumen de: EP4712152A1

Disclosed are positive electrodes, all-solid-state batteries, and fabrication methods thereof. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector. The positive electrode active material layer includes a sulfide-based solid electrolyte, a binder that includes a first non-aqueous binder and a second non-aqueous binder, and a positive electrode active material. The first non-aqueous binder includes a fluorine-based binder. The second non-aqueous binder includes an acrylate-based binder.

COMPOSITE SUBSTRATE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

NºPublicación:  EP4712172A1 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4712172_PA

Resumen de: EP4712172A1

Disclosed is a composite substrate for a rechargeable lithium battery including a support layer having a first surface and a second surface that are opposite to each other, a first metal layer on the first surface, and a second metal layer on the second surface. The support layer includes a plurality of first through parts penetrating the first surface and spaced apart from each other along a first direction, and a plurality of second through parts penetrating the second surface and spaced apart from each other along the first direction. The plurality of first through parts and the plurality of second through parts are alternately disposed along the first direction, and the first direction is substantially parallel to the first surface.

POWER MANAGEMENT DEVICE AND METHOD FOR POWER TRADING

NºPublicación:  EP4712285A1 18/03/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
EP_4712285_PA

Resumen de: EP4712285A1

A power management device according to an embodiment of the present invention is a power management device for managing the power of a battery included in a transportation means, and may comprise: at least one processor; and a memory for storing at least one instruction executed through the at least one processor. The at least one instruction may include: an instruction for classifying and storing information on the charging power of the battery according to energy type; an instruction for, when a power transaction request for charging power of a specific energy type is received, determining whether to agree to the power transaction on the basis of the amount of the charging power of the specific energy type; and an instruction for checking the amount of power discharged by the battery in response to the power transaction when the power transaction is agreed to.

OPERATION SUPPORT APPARATUS AND METHOD FOR ENERGY STORAGE SYSTEM

NºPublicación:  EP4712292A1 18/03/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
EP_4712292_PA

Resumen de: EP4712292A1

An operation support apparatus, according to an embodiment of the present invention, is an operation support apparatus for an energy storage system and may comprise at least one processor, and a memory storing at least one instruction that is executed by the at least one processor. The at least one instruction may include the instructions of: collecting information about batteries that can be applied to the energy storage system; deriving, on the basis of the structure of the energy storage system, a plurality of combinations, each including one or more batteries that can be applied to the energy storage system; calculating an operating cost of the energy storage system for each of the combinations; and generating recommended combination information including information about a combination that, among the combinations, represents the minimum operating cost.

SYSTEM AND METHOD FOR OPTIMIZING OPERATING STATE OF BATTERY USING A CLOUD

NºPublicación:  EP4712303A1 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4712303_PA

Resumen de: EP4712303A1

A system for optimizing an operating state of a battery by using a cloud includes: a cloud unit configured to receive battery data; a first data collection unit configured to collect first data; a first data transmitter configured to transmit the first data to the cloud unit; a second data receiver configured to receive second data from the cloud unit; and a controller configured to control an operating state of a battery based on the second data and to perform any one of an update of first deterioration state information and an adjustment of a learning speed.

BATTERY CONNECTORS FOR IMPLANTABLE MEDICAL DEVICES

NºPublicación:  EP4712249A1 18/03/2026
Solicitante: 
MEDTRONIC INC [US]
Medtronic, Inc
EP_4712249_A1

Resumen de: EP4712249A1

An implantable medical device, comprising: a device housing comprising a first enclosure and a second enclosure coupled to the first enclosure; a circuit board fixed within the first enclosure of the device housing and having a first terminal; a battery that has a battery housing positioned within the second disclosure of the device housing, and having a battery terminal, a battery connector (208) positioned within the second enclosure of the device housing and comprising a battery connector body (220) that is affixed directly to the device housing; and at least one electrical conductor affixed directly to the battery connector body (220), the at least one electrical conductor electrically couples the battery terminal to the first power terminal and has a pin portion that forms a conductive pin (226, 228) that extends beyond the battery connector body and electrically couples to the first power terminal, and a plate portion forming a conductive plate (222, 224) electrically coupled to the battery terminal.

ELECTRODE ASSEMBLY WITH INSULATING TAPE ATTACHED AND LITHIUM SECONDARY BATTERY INCLUDING SAME

NºPublicación:  EP4712195A1 18/03/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
EP_4712195_A1

Resumen de: EP4712195A1

Disclosed are an electrode assembly having an insulating tape attached thereto, the electrode assembly including an electrode stack constituted by a plurality of positive electrodes and a plurality of negative electrodes stacked alternately with a separator disposed therebetween, a positive electrode lead coupled to a positive electrode tab bundle constituted by positive electrode tabs protruding respectively from outer peripheries of the plurality of positive electrodes and overlapping each other, a negative electrode lead coupled to a negative electrode tab bundle constituted by negative electrode tabs protruding respectively from outer peripheries of the plurality of negative electrodes and overlapping each other, a first insulating tape attached to at least a part of an upper surface of the electrode stack, to an upper surface of a positive electrode coupling portion where the positive electrode tab bundle and the positive electrode lead are coupled to each other, and to an upper surface of a negative electrode coupling portion where the negative electrode tab bundle and the negative electrode lead are coupled to each other, and a second insulating tape attached to at least a part of a lower surface of the electrode stack, to a lower surface of the positive electrode coupling portion where the positive electrode tab bundle and the positive electrode lead are coupled to each other, and to a lower surface of the negative electrode coupling portion where the negative electro

BATTERY PACK

NºPublicación:  EP4712243A1 18/03/2026
Solicitante: 
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
EP_4712243_PA

Resumen de: EP4712243A1

Disclosed is a battery pack. The battery pack includes a base plate; a first battery module installed on an upper surface of the base plate; and a partition wall including a fixed wall installed on the upper surface of the base plate and having an opening facing the first battery module and a moving wall covering the opening and installed movably.

CYLINDRICAL BATTERY, PACK AND ELECTRONIC DEVICE

NºPublicación:  EP4712222A1 18/03/2026
Solicitante: 
AESC JAPAN LTD [JP]
AESC Japan Ltd
EP_4712222_PA

Resumen de: EP4712222A1

The disclosure provides a cylindrical battery (100), a pack (1002), and an electronic device (1000). The cylindrical battery (100) includes a housing (200) having an opening (205) at one end in a height direction (Hd) of the cylindrical battery (100); an electrode assembly (120) located in the housing (200) and having a winding center hole (120c); a cover plate (220) covering the opening of the housing (200) and having an explosion-proof valve region (222) formed by being surrounded by explosion-proof valves (350). The winding center hole (120c) is located within a range of an orthogonal projection of the explosion-proof valve region (222) of the cover plate (220) in the height direction (Hd). The winding center hole (120c) has a diameter D1, a partial region of the cover plate (220) has a diameter D2, and 35%≥D1/D2≥10%.

APPARATUS AND METHOD FOR FORMING ELECTRODE PLATE TAB PATTERN

NºPublicación:  EP4712184A2 18/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
EP_4712184_PA

Resumen de: EP4712184A2

An apparatus (10) for forming an electrode plate tab pattern includes a conveying portion (100) configured to convey, in a first direction, an electrode plate (20) coated with an active material, a first pattern forming portion (200) configured to form a first tab pattern (211) on the electrode plate (20), and a second pattern forming portion (300) configured to form a second tab pattern (311) on the electrode plate (20). The first tab pattern (211) and the second tab pattern (311) are configured to be spaced apart from each other by a preset first distance.

BATTERY CELL HOLDER AND BATTERY PACK

Nº publicación: EP4712233A1 18/03/2026

Solicitante:

SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD

EP_4712233_PA

Resumen de: EP4712233A1

A battery cell holder for accommodating a battery cell includes: an upper cover configured to extend around an upper portion of a battery cell while exposing a first electrode terminal of the battery cell; and a lower cover configured to extend around a lower portion of the battery cell while exposing a second electrode terminal of the battery cell, the lower cover and the upper cover being coupled to each other. A pair of parting sides of the upper cover and the lower cover that contact each other when the upper cover and the lower cover are coupled together extend diagonally.

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