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LITHIUM SECONDARY BATTERY CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: WO2025225949A1

Provided is a lithium secondary battery cathode comprising: a cathode current collector; a functional layer, which is positioned on the cathode current collector and contains a lithium transition metal phosphorus oxide; a cathode active material layer, which is positioned on the functional layer and contains a cathode active material; and a ceramic insulating layer positioned on a functional-layer-uncoated area of the cathode current collector, wherein the ceramic insulating layer includes inorganic particles and a flame retardant. The lithium secondary battery cathode and the lithium secondary battery comprising same can ensure safety and reliability while minimizing a decrease in energy density during operation.

VANADIUM ELECTROLYTE AND SECONDARY BATTERY COMPRISING SAME

Resumen de: WO2025225942A1

The present invention relates to a vanadium electrolyte and to a secondary battery comprising same and, more particularly, to a vanadium electrolyte having a controlled concentration of an element causing a hydrogen evolution reaction (HER) occurring during charging and discharging of a secondary battery, and to a secondary battery comprising the vanadium electrolyte.

BATTERY MODULE COMPRISING INSULATION PLATE

Resumen de: WO2025225957A1

Provided is a structure of a battery module comprising: a cell laminate in which a plurality of battery cells is stacked in the front-rear direction; a first end plate for supporting the cell laminate from the front side; a second end plate for supporting the cell laminate from the rear side; and a connection member for connecting opposite ends in the widthwise direction of the first end plate and the second end plate in the front-rear direction, wherein an insulating plate is interposed between the cell laminate and the first end plate, and a hook part snap-fitted coupled to the first end plate and a rigidity reinforcing part for reinforcing bending rigidity are provided on the upper end of the insulating plate.

METHOD OF ALKALINE LEACHING OF METALS FROM LITHIUM-ION BATTERIES

Resumen de: WO2025226432A1

This disclosure provides processes for recovering one or more metals or metal compounds from black mass from lithium-ion batteries by alkaline leaching to form an alkaline leachate, and preparing a cathode active material precursor from the alkaline leachate.

DEGASSING PROCESS APPARATUS AND OPERATION METHOD THEREOF

Resumen de: WO2025225827A1

A degassing process apparatus according to one embodiment disclosed in the present document comprises: an information acquisition unit for acquiring an atmospheric pressure; and a controller for correcting a vacuum pressure during the process of degassing a battery on the basis of the atmospheric pressure, wherein the vacuum pressure may be the pressure required to reach a vacuum state during the degassing process.

ELECTRODE CURRENT COLLECTOR, MANUFACTURING METHOD THEREFOR, AND SECONDARY BATTERY ELECTRODE ASSEMBLY COMPRISING SAME

Resumen de: WO2025225857A1

The present invention relates to an electrode current collector, a manufacturing method therefor, and a secondary battery electrode assembly comprising same, the collector comprising: a first metal layer; a polymer resin layer provided on one surface of the first metal layer; and a second metal layer provided on one surface of the polymer resin layer, wherein in some region of an uncoated part corresponding to an electrode tab, the polymer resin layer is removed so that the first metal layer and the second metal layer face each other.

BATTERY SYSTEM AND INTERWORKING METHOD IN BATTERY SYSTEM

Resumen de: WO2025225849A1

A battery system according to an embodiment of the present invention comprises: lower control devices that individually control a plurality of batteries; and an upper control device that manages the plurality of lower control devices, wherein at least one of the lower control devices may identify the operating state of the battery system, and when the battery system is initialized and operating, may identify an identifier pre-stored in a storage space and perform initialization by itself.

BIPOLAR UNIT CELL, MANUFACTURING METHOD THEREFOR, AND BIPOLAR BATTERY COMPRISING SAME

Resumen de: WO2025225906A1

According to one embodiment of the present invention, a bipolar unit cell, a manufacturing method therefor, and a bipolar battery structured as two or more stacked bipolar unit cells are provided, the bipolar unit cell comprising: a positive electrode including a positive electrode current collector and a positive electrode material layer, which is formed on one surface of the positive electrode current collector so that a positive electrode uncoated portion is formed on the edge thereof; a negative electrode including a negative electrode current collector and an negative electrode material layer, which is formed on one surface of the negative electrode current collector so that an negative electrode uncoated portion is formed on the edge thereof; and a separator, wherein the positive electrode material layer and the negative electrode material layer are stacked to face each other with the separator interposed therebetween, and at least one selected from the group consisting of the positive electrode material layer, the negative electrode material layer, and the separator contains a cured gel electrolyte.

SECONDARY BATTERY

Resumen de: WO2025225933A1

The present disclosure relates to a secondary battery. The technical problem to be solved is to provide a secondary battery, wherein a separate terminal is configured to be connected by welding, thereby reducing the overall thickness of the terminal compared to the prior art, and thus ensuring a relatively large battery capacity. To this end, the present disclosure provides a secondary battery comprising: an electrode assembly having a first electrode plate, a separator, and a second electrode plate; a cylindrical case in which the electrode assembly is accommodated; and a terminal coupled to a through-hole formed in the upper surface of the case. The terminal comprises: a first terminal plate coupled to the through-hole of the case; and a second terminal plate and a third terminal plate coupled to one side and the other side of the first terminal plate, respectively. The first terminal plate and the second terminal plate are coupled to each other by welding, and the first terminal plate and the third terminal plate are coupled to each other by welding.

Separator for a rectangular battery cells

Resumen de: KR20250001598U

본 고안은 각형 배터리 셀 분리장치를 제안한다. 본 고안의 장치는, 바디부에 설치되며, 구동력에 의해 좌우 방향으로 이동하는 제품 이송 브라켓과, 상기 제품 이송 브라켓의 내측면에 구비되는 고정구, 상기 고정구에 삽입된 각형 셀을 고정하는 셀 그리퍼(Gripper), 상기 제품 이송 브라켓의 이동 경로상에 설치되며, 상기 제품 이송 브라켓의 이동에 의해 상기 각형 셀의 상단 및 하단 일부를 절단하도록 수직방향으로 소정 간격 이격되어 설치되는 한 쌍의 상하 컷팅 휠, 상기 제품 이송 브라켓의 이동 경로상에 설치되며, 상기 상하 컷팅 휠에 의해 상단 및 하단 일부가 절단된 각형 셀에서 상기 각형 셀의 케이스 및 케이스 내부의 젤리 롤을 분리 배출하도록 추출 브라켓이 구비된 유압 실린더, 및 상기 제품 이송 브라켓, 셀 그리퍼, 컷팅 휠 및 유압 실린더의 구동을 제어하는 제어부를 포함하는 구성이다. 이러한 구성에 따르면 각형 셀의 상단 및 하단 일부가 절단되고, 절단된 케이스 내부의 젤리 롤을 배출시켜 분리한 다음 마지막으로 빈 케이스를 회수하는 일련의 작업을 자동으로 수행할 수 있다.

ENERGY STORAGE BATTERY PACK, BATTERY SYSTEM, AND ELECTRICAL DEVICE

Resumen de: WO2025223374A1

The present application belongs to the technical field of energy storage, and relates to an energy storage battery pack, a battery system, and an electrical device. The energy storage battery pack comprises a module and an interlocking assembly. The interlocking assembly comprises a first connecting member and a second connecting member rotatably connected to the first connecting member. The first connecting member is mounted on the module, and the second connecting member is suitable for being connected to a module of another energy storage battery pack. The alignment and locking of the energy storage battery pack are easier to achieve, so that scratching of the energy storage battery pack can be prevented, thereby ensuring an attractive appearance and preventing an effect on the corrosion resistance of the energy storage battery pack.

CONNECTING PLATE AND EXTENSIBLE MODULE HAVING SAME

Resumen de: WO2025223519A1

Provided in the present application are a connecting plate and an extensible module having same. The connecting plate is used for connecting two adjacent battery modules, and the connecting plate is provided with a first connecting portion and a second connecting portion which are spaced apart from each other, wherein the first connecting portion is connected to one of the two adjacent battery modules, the second connecting portion is connected to the other one of the two adjacent battery modules, and a weight reduction portion is formed between the first connecting portion and the second connecting portion. The connecting plate of the present application is provided with the first connecting portion and the second connecting portion, such that adjacent battery modules form an integral long module; therefore, the connection of the battery modules can be facilitated, and the design freedom of the lengths of the battery modules can also be improved; moreover, the volumes of a plurality of battery modules can be reduced, and the energy density of the extensible module can also be increased.

ELECTRODE SHEET, BATTERY CELL, AND BATTERY

Resumen de: WO2025223228A1

An electrode sheet, a battery cell, and a battery. The electrode sheet is used for the battery cell, and the electrode sheet comprises a first current collector and a first active material layer. The first current collector is suitable for being connected to a first tab. The first active material layer is stacked on the first current collector. The first active material layer comprises a first region and a second region, the first region being closer to the first tab than the second region. The porosity of the first region is a first porosity A, and the porosity of the second region is a second porosity B, satisfying A>B.

ELECTRODE SHEET, ELECTRODE CORE, BATTERY, AND ELECTRICAL DEVICE

Resumen de: WO2025223286A1

An electrode sheet, an electrode core, a battery, and an electrical device. A first coating portion, a second coating portion, and a third coating portion are sequentially arranged on a surface of the electrode sheet in a first direction. A first parameter of the first coating portion and a first parameter of the third coating portion are both larger than a first parameter of the second coating portion. The thicknesses of the first coating portion, the second coating portion, and the third coating portion are the same, and the first parameter is compaction density or surface density.

BATTERY CASING, BATTERY, BATTERY PACK, AND ELECTRICAL DEVICE

Resumen de: WO2025223316A1

A battery casing, a battery, a battery pack, and an electrical device. The battery casing comprises a casing body, a flange edge, and a terminal assembly. The flange edge is arranged on a circumferential edge of the casing body, the terminal assembly is arranged on the casing body, and at least part of the terminal assembly is located on an outer side of a first surface of the casing body. The projection of the terminal assembly towards the first surface at least partially overlaps with the projection of the flange edge towards the first surface, and a clearance portion is arranged on the side of the terminal assembly close to the flange edge of the casing body.

BATTERY CHARGING DEVICE

Resumen de: US2025337028A1

A battery charging device suitable for portable operation includes a charging box with a grip is provided on one side of the top of the charging box near a first opening, and when the battery charging device is lifted by the grip, the tilt direction of the battery charging device is consistent with the tilt direction of a battery compartment. The battery charging device can thereby reduce the risk of the battery easily falling out of the battery compartment during transportation, which improves the reliability of the battery charging device during transportation.

BATTERY STRUCTURE OF ELECTRIC VEHICLE

Resumen de: US2025337085A1

A battery structure for an electric vehicle includes first and second battery arrays. The first battery array includes first walls that are secured to each other to form a first unitized structure that is configured to house first battery cells. One first wall of the plurality of first walls extends in a transverse direction relative to a longitudinal direction of the electric vehicle. The second battery array is adjacent to the first battery array and includes second walls that are secured to each other to form a second unitized structure that is configured to house second battery cells. One second wall of the plurality of second walls is secured to the first wall of the first battery array and includes a first vertical portion, a second vertical portion spaced apart from the first vertical portion and connecting members connecting the first vertical portion and the second vertical portion.

BATTERY PACK

Resumen de: US2025337070A1

A battery pack is provided and including a battery case including a plurality of accommodating portions each accommodating one cylindrical battery cell, the accommodating portions being arranged side by side in one direction, in which each of the accommodating portions has a wall portion defining a space for accommodating the cylindrical battery cell, the wall portion in a state before accommodating the cylindrical battery cell defines an elliptical cylindrical space, a slit is provided in the wall portion in parallel with a central axis of the elliptical cylindrical space, a direction in which the accommodating portions are arranged in one direction is defined as a long axis direction of the elliptical cylindrical space, a direction perpendicular to the long axis direction is defined as a short axis direction, and a direction perpendicular to the long axis direction and the short axis direction and parallel to the central axis of the elliptical cylindrical space is defined as a depth direction, and a longest short axis diameter in the short axis direction of the elliptical cylindrical space in each of the accommodating portions is equal to or smaller than a diameter of the cylindrical battery cell.

SECURED MODIFICATION OF BATTERY PACK PARAMETERS

Resumen de: US2025337025A1

A computer system is provided, including processing circuitry configured to obtain indications of voltages at a plurality of connector pins and/or sockets of a physical port for connecting a diagnostics tool to a battery pack or battery management unit for the battery pack; determine, based on the indications, that the voltages applied match a predefined voltage pattern; and, in response to the determining, authorize the diagnostics tool to modify one or more parameter values of the battery pack.

SYSTEMS AND METHODS FOR SEALING TRACTION BATTERY PACKS

Resumen de: US2025337072A1

Systems and methods are provided for sealing interfaces of a traction battery pack. An enclosure assembly of the traction battery pack may include a protective blanket configured for insulating portions of the enclosure assembly. A sealing portion of the protective blanket may be arranged to seal an interface between a first enclosure section and a second enclosure section of the enclosure assembly. The sealing portion may be compressed by one or more mechanical fasteners for sealing a gas exchange between an interior area of the enclosure assembly and an ambient environment outside of the enclosure assembly.

TRACTION BATTERY PACK IMMERSION THERMAL MANAGEMENT SYSTEM WITH MULTIPLE OUTLET PORTS

Resumen de: US2025337048A1

A traction battery pack immersion thermal management system includes a coolant delivery system that communicates a coolant from an coolant supply to a battery case that houses a cell stack. The coolant delivery system includes at least one inlet port to the battery. The thermal management system additionally includes a coolant return system that communicates the coolant from the battery case back to the coolant supply. The coolant return system including a plurality of outlet ports and a return manifold. The outlet ports each separately fluidly connect the battery case to the return manifold. The return manifold is configured such that coolant received from each of the plurality of outlet ports is mixed within the return manifold prior to reaching the coolant supply.

THERMAL REGULATION DEVICE FOR COOLING AN ELECTRICAL ENERGY STORAGE MEMBER

Resumen de: US2025337041A1

A thermal regulation device for cooling of an energy storage unit, including a first stage and a second stage. The first stage includes a first support plate and a first distribution plate. The thermal regulation device includes at least one additional plate positioned against the first support plate, and delimiting at least one duct for circulation of the cooling fluid. The first stage and the second stage are in fluidic communication via the additional plate and a connection means.

BATTERY CASE

Resumen de: US2025337076A1

A battery case is provided and including a plurality of accommodating portions each accommodating one cylindrical battery cell, the accommodating portions 11 being arranged side by side in one direction, in which each of the accommodating portions has a wall portion defining a space for accommodating the cylindrical battery cell, the wall portion in a state before accommodating the cylindrical battery cell defines an elliptical cylindrical space, a direction in which the accommodating portions are arranged in one direction is defined as a long axis direction of the elliptical cylindrical space, a direction perpendicular to the long axis direction is defined as a short axis direction, and a direction perpendicular to the long axis direction and the short axis direction and parallel to a central axis of the elliptical cylindrical space is defined as a depth direction, and a longest long axis diameter in the long axis direction of the elliptical cylindrical space in each of the accommodating portions 11 is equal to or larger than a diameter of the cylindrical battery cell.

SECONDARY BATTERY PACK

Resumen de: US2025337069A1

A secondary battery pack includes a plurality of secondary batteries; a lower frame configured to support a lower portion of each of the plurality of secondary batteries; a side frame provided in plurality to be spaced apart from each other to vertically extend from the lower frame so as to define a plurality of separation spaces; and an upper frame provided above the side frame to open and close each of the plurality of separation spaces.

PRESSURE RELIEF DEVICE AND HOUSING

Nº publicación: US2025337090A1 30/10/2025

Solicitante:

ELRINGKLINGER AG [DE]
ElringKlinger AG

Resumen de: US2025337090A1

A pressure relief device for opening a relief opening in a housing, in particular a battery storage housing, said pressure relief device providing a safe mode of functioning and having a simple structure, it is proposed that the pressure relief device has a main body which can be arranged in the relief opening and has a passage which connects an inlet and an outlet through which a medium can flow, a closing element which, if a defined activation pressure is exceeded, can be transferred from a closed position, in which the closing element closes the passage, to an open position in which the closing element releases the passage, and a cover which at least partly covers the closing element and/or passage and performs a setting movement with the closing element in order to release the passage.