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DEVICE AND METHOD FOR BATTERY COMMUNICATION MANAGEMENT

Resumen de: EP4708625A1

A battery communication management device, including a rack battery management part including a microcontroller and an interface converter, and a plurality of module battery management parts in serial connection with the rack battery management part and managed by the rack battery management part, wherein each of the plurality of module battery management parts manages a battery module, each of the plurality of module battery management parts includes an analog front end, and the microcontroller determines a type of communication failure between the rack battery management part and the plurality of module battery management parts.

POLYMER ELECTROLYTE, SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: EP4707313A1

Disclosed is a polymer electrolyte, including: a polymer substrate; and a copolymer, wherein the polymer substrate includes a support material, and the copolymer contains cyano groups, ester groups, and sulfonic acid groups. In the present disclosure, the polymer substrate serves as a support material to provide a mechanical strength, and the function of the copolymer is to form a stable interface with positive electrodes and negative electrodes. Furthermore, the copolymer contains cyano groups, ester groups, and sulfonic acid groups, all of which are polar groups that enable improvement of the mechanical properties of the electrolyte, while having high a reduction resistance and an oxidation resistance, enabling formation of a stable SEI film with the negative electrodes and a stable CEI film with the positive electrodes, which may enable the prepared secondary battery to have a high energy density and to be able to operate cycles in the long term.

LITHIUM-ION SECONDARY BATTERY

Resumen de: EP4708400A1

Disclosed is a lithium-ion secondary battery, where the lithium-ion secondary battery includes a positive electrode current collector, which is provided with N positive electrode tabs, N ≥ 2, and at least a part of a functional surface of the positive electrode current collector is provided with a positive electrode functional layer including a positive electrode active material. The positive electrode active material includes a monocrystal ternary material with a chemical composition of LipMem(NixCoyMnz)O2 and a polycrystal ternary material with a chemical composition of LiqMen(NiaCobMnc)O2, and the lithium-ion secondary battery satisfies 0.2 ≤ (C × N)/W ≤ 7.5, where C is a molar content of nickel of the positive electrode active material; and W is a width of the positive electrode tabs.

COMPOSITE SODIUM IRON SULFATE POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET OF SODIUM-ION BATTERY, AND SODIUM-ION BATTERY

Resumen de: EP4708392A1

The present invention provides a composite sodium iron sulfate positive electrode material and a preparation method thereof, a sodium-ion battery positive electrode plate, and a sodium-ion battery, relating to the technical field of batteries. In the preparation method of the composite sodium iron sulfate positive electrode material provided by the present invention, the conductivity of the conductive agent can be improved by doping boron during the preparation process of the conductive agent, reducing the amount of conductive agent; adding the conductive agent during the preparation process of the positive electrode materials can improve the dispersion uniformity of the conductive agent; and high-temperature sintering can enable the contact between the conductive agent and the active material to be more reliable, and the dry-process electrode plate prepared using the material has a lower resistance value of electrode plate.

APPARATUS AND METHOD FOR CONTROLLING BATTERY

Resumen de: EP4708620A1

A battery control device according to an embodiment of the present invention is located in a battery system including a plurality of batteries, and may include: at least one processor; and a memory that stores at least one command executed through the at least one processor. The at least one command may comprise: a command for monitoring the voltage of each of the batteries in a process in which the batteries are connected in parallel to a DC link and charged; a command for sequentially dropping, from the DC link, batteries that have reached a predefined target voltage; and a command for stopping a charging process in a state in which the N batteries are connected to the DC link when only N preset batteries remain connected to the DC link.

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

Resumen de: EP4708407A1

Disclosed are an electrode current collector including 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 the polymer resin layer is removed from a part of an uncoated portion corresponding to an electrode tab such that the first metal layer and the second metal layer face each other, a method of manufacturing the same, and a secondary battery electrode assembly including the same.

ELECTRICAL CELL MODULE, AND A METHOD OF ASSEMBLING AN ELECTRICAL CELL MODULE

Resumen de: EP4708496A1

The present invention relates to an electrical cell module, particularly an electrical cell module including at least two cell stacks. A method of manufacturing the electrical cell module is also disclosed. The electrical cell module comprises: an opposing pair of module end plates spaced apart from one another along a longitudinal axis; a first cell stack; and a second cell stack. Each of the first cell stack and second cell stack comprises: a series of cells stacked along the longitudinal axis, and a pair of stack end plates, arranged at opposing ends of the series of cells, and configured to be fixed to one another in an assembled position. In the assembled position, the pair of stack end plates apply to the series of cells a compressive force along the longitudinal axis, and define a stack length of the respective cell stack. The compressive force applied to the first cell stack and the compressive force applied to the second cell stack are each within a predetermined operable range. The electrical cell module is configured so that each of the opposing pair of module end plates is fixedly engaged, in a use position, with one corresponding stack end plate of each of the first cell stack and the second cell stack. In the use position the module end plates are spaced apart from one another along the longitudinal axis by a predetermined distance, and the first stack length is different to the second stack length.

AUTOMATIC SPINDLE ADJUSTMENT APPARATUS

Resumen de: EP4706846A1

An automatic spindle adjustment apparatus includes a base frame, a spindle adjuster on the base frame, the spindle adjuster being configured to adjust an upper spindle mover to set a moving range of an upper spindle corresponding to a target occlusal thickness of a battery cell, a vertical mover on the base frame, the vertical mover being configured to move the spindle adjuster in an up-and-down direction, and a horizontal mover on the vertical mover, the horizontal mover being coupled to the spindle adjuster and configured to move the spindle adjuster in a forward-backward direction.

INJECTION HOLE COVER, AND BATTERY CELL AND BATTERY MODULE INCLUDING THE SAME

Resumen de: EP4708470A2

A battery cell includes a cell case including a case body and a cap plate, an electrode assembly, an electrode terminal, and an injection hole cover covering an injection hole formed in the cap plate. The cap plate includes a step portion recessed toward an inside of the cell case, and a recessed space formed on at least a portion of a periphery of the step portion and recessed toward an outside of the cell case, the injection hole cover includes a cover body installed on the step portion, and a convex portion extending from the cover body to be inserted into the injection hole, and the recessed space has a shape overlapping at least a portion of the cover body when the cover body is projected in a lateral direction of the cover body.

VENT PLATE, METHOD FOR MANUFACTURING THE SAME, AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4708531A1

A vent plate includes a first vent member in an electrolyte injection port of a case of a secondary battery and a second vent member coupled to the first vent member. The first vent member includes a head portion on an outside of the case and a protrusion protruding from the head portion toward an inside of the case and in the electrolyte injection port.

SECONDARY BATTERY AND BATTERY PACK INCLUDING THE SECONDARY BATTERY

Resumen de: EP4708483A2

The present disclosure relates to a secondary battery and a battery pack including the secondary battery, with the secondary battery being capable of reliably venting gas. The secondary battery including a case, an electrode assembly accommodated inside the case, a cap assembly facing the electrode assembly, a clamping part extending from the case and surrounding the cap assembly, and a notch formed from an inner side surface of the clamping part.

CAP ASSEMBLY WITH INJECTION MOLDED GASKET

Resumen de: EP4708484A2

The present disclosure provides a cap assembly (130) that provides improved sealing, a secondary battery including the cap assembly, and a method of manufacturing the secondary battery. The cap assembly (130) includes a upper cap (132), a safety vent (134) below the upper cap (132) and surrounding at least a portion of an edge of the upper cap (132), a lower cap (138) below the safety vent (134), an insulator (136) between the safety vent (134) and the lower cap (138), and an injection molded gasket (139) integral to the safety vent (134) and surrounding at least a portion of an edge of the safety vent (134).

TAPING APPARATUS FOR ELECTRODE SHEET

Resumen de: EP4708424A1

The present disclosure relates to a taping device for an electrode sheet, and the taping device for an electrode sheet according to one aspect of the present disclosure may include an electrode sheet supply unit that supplies an electrode sheet including a foil-shaped current collector portion and a plurality of pattern portions arranged along the length direction of the current collector portion on one surface of the current collector portion; a taping unit that forms a tape portion attached to one surface of the current collector portion to overlap at least a part of two neighboring pattern portions among the plurality of pattern portions, respectively; and an electrode sheet recovery unit that recovers an electrode sheet on which the tape portion is formed, wherein the taping unit may include a gripper capable of gripping or releasing a tape and being moved in the width direction of the current collector portion; and a pressurizing block capable of pressurizing the tape toward the current collector portion through an area having a width wider than a spacing between the two pattern portions.

WEARABLE DEVICE

Resumen de: EP4708921A1

A wearable device includes a housing assembly and a movement assembly. The housing assembly includes a first housing and a second housing, the first housing being connected to the second housing to form an accommodating cavity between the first housing and the second housing; the movement assembly being provided in the accommodating cavity and including a first assembly and a second assembly in electrical connection with the first assembly, the first assembly being connected to the first housing, and the second assembly being connected to the second housing. By dispersedly connecting the movement assembly to the first housing and the second housing, the housing assembly may be designated as a structural mounting carrier of the movement assembly, not only reducing the number of related connecting parts but also making full use of the housing structure and space, which is conducive to the miniaturization and lightweight design of the device.

BATTERY MANAGEMENT APPARATUS AND METHOD OF CONTROLLING CHARGING/DISCHARGING USING THE SAME

Resumen de: EP4708618A1

A battery management apparatus includes a measuring unit including at least one sensor, the measuring unit configured to measure a cell voltage of each of a plurality of battery cells in a battery module, and a processor configured to adjust a charging threshold voltage or a discharging threshold voltage based on a difference in cell voltage between the plurality of battery cells and a current state of charge (SOC) of the battery module if charging or discharging the battery module.

POSITIVE ELECTRODE ACTIVE MATERIALS, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: EP4708379A1

A positive electrode active material is provide, the positive electrode active material including a first positive electrode active material including a lithium iron phosphate-based compound; and a second positive electrode active material including lithium nickel-based composite oxide; wherein the second positive electrode active material is included in an amount of ≥ 1 wt% to ≤ 15 wt% based on 100 wt% of the first positive electrode active material and second positive electrode active material. The positive electrode active material, the positive electrode including the same, and the rechargeable lithium battery according to some example embodiments may achieve high capacity and excellent or suitable stability.

BATTERY DIAGNOSTIC DEVICE AND METHOD

Resumen de: EP4707838A1

A method for diagnosing a battery according to one aspect of the present disclosure includes: generating a battery profile representing a relationship between a capacity and a voltage of the target battery for each predetermined number of charge cycles or discharge cycles; obtaining a negative electrode profile estimating a relationship between a negative electrode capacity and a negative electrode potential of the target battery based on the battery profile; obtaining a diagnostic factor value representing an available capacity per unit area of the negative electrode based on the negative electrode profile; and diagnosing a state of the negative electrode based on diagnostic factor values sequentially obtained as the charge cycle or the discharge cycle is repeated.

나트륨 이온 배터리용 하드 카본 음극재료의 제조장치

Resumen de: WO2025102477A1

A hard-carbon negative electrode material preparation device for a sodium-ion battery, the preparation device relating to the technical field of battery preparation. The preparation device comprises feeding parts, a crushing module, a mixing module and a final processing module. The feeding parts can drive hard-carbon raw materials to sequentially pass through the crushing module, the mixing module and the final processing module. After the feeding parts feed the hard-carbon raw materials into the crushing module, the crushing module can crush the hard-carbon raw materials, and possible magnetic impurities in the hard-carbon raw materials are removed by means of a first demagnetization part. A first mixing part can thoroughly mix the crushed hard-carbon raw materials, and a second mixing part can mix the hard-carbon raw materials in batches, so as to further make the hard-carbon raw materials unform in content. A first screening part and a second screening part can perform multiple instances of screening on the hard-carbon raw materials, such that the hard-carbon raw materials are screened more thoroughly; and a second demagnetization part can perform demagnetization on the hard-carbon raw materials again, thereby further reducing the magnetic impurities in the hard-carbon raw materials.

MANUFACTURING APPARATUS AND MANUFACTURING METHOD FOR SECONDARY BATTERY

Resumen de: KR20260034440A

본 개시의 이차전지의 제조장치는 회전 가능하게 대상물을 지지하는 받침부, 하부에 승강 가능한 가압부를 구비하고, 상기 받침부에 안착된 상기 대상물의 상부를 상기 가압부로 가압 고정하는 고정부, 상기 대상물의 상단 둘레부에 접착부재를 제공하는 접착부재 유닛, 상기 접착부재를 상기 대상물의 상단 둘레부에 부착하는 부착부 및 상기 접착부재를 절단하는 절단부를 포함할 수 있다.

manufacturing method of a secondary cell

Resumen de: WO2026054436A1

The present invention relates to an apparatus and a method for manufacturing a secondary battery and, more specifically, to a method and an apparatus for manufacturing a secondary battery by easily checking the degree of impregnation by an electrolyte. To this end, according to one embodiment of the present invention, a method for manufacturing a pouch-type secondary battery may be provided, the method comprising: a pre-aging step for inserting an electrode assembly into a pouch case and assembling same, and injecting an electrolyte into the pouch case and sealing the pouch case; and an impregnation checking step for, after the pre-aging step, pressing the outer surface of the pouch case through a pad sensor having a plurality of nodes, and checking the degree of impregnation of the electrode assembly by the electrolyte on the basis of the deviation of pressures sensed through the plurality of nodes.

SECONDARY BATTERY DEVICE FOR MANUFACTURING SAME AND METHOD FOR MANUFACTURING SAME

Resumen de: US20260066499A1

A secondary battery includes an electrode assembly include a side that extends in a first direction, a case accommodating the electrode assembly, a lead tab protruding from the side of the electrode assembly, and a strip terminal connected to the lead tab. The lead tab is bent in the first direction. The strip terminal includes a first section connected to the lead tab and extending in the first direction, and a second section connected to the first section and bent in a second direction that intersects the first direction. An angle between the first section and the second section is 90 degrees or less.

POWER BATTERY PACK AND ELECTRIC VEHICLE

Resumen de: JP2025114617A

To provide a battery pack having advantages such as a high space utilization factor, high energy density, high cruising capability, high reliability, low cost, and high quality.SOLUTION: The present disclosure relates to a battery pack and an electric vehicle. The battery pack includes: a pack body; and a plurality of battery cells provided in the pack body. A sum V1 of a volume of the plurality of battery cells and a volume V2 of the battery pack satisfy V1/V2≥55%. The battery pack has a first direction and a second direction that are perpendicular to each other. The battery cell is arranged such that a longitudinal direction thereof aligns with the first direction of the battery pack. The plurality of battery cells are arranged along the second direction of the battery pack. The battery cell includes a battery body having a length of 400 to 2500 mm.SELECTED DRAWING: Figure 2

Elemental metal and carbon mixtures for energy storage devices

Resumen de: US2025266430A1

An energy storage device can include a first electrode, a second electrode and a separator between the first electrode and the second electrode wherein the first electrode or the second electrode includes elemental lithium metal and carbon particles. A method for fabricating an energy storage device can include forming a first electrode and a second electrode, and inserting a separator between the first electrode and the second electrode, where forming the first electrode or the second electrode can include combining elemental lithium metal and a plurality of carbon particles.

BATTERY MANAGEMENT APPARATUS AND MEHTHOD FOR CHARGING/DISCHARGING CONTROL USING THE SAME

Resumen de: US20260066687A1

A battery management apparatus includes a measuring unit including at least one sensor, the measuring unit configured to measure a cell voltage of each of a plurality of battery cells in a battery module, and a processor configured to adjust a charging threshold voltage or a discharging threshold voltage based on a difference in cell voltage between the plurality of battery cells and a current state of charge (SOC) of the battery module if charging or discharging the battery module.

Renewable Energy Portable Battery Rental Service

Nº publicación: KR20260034348A 11/03/2026

Solicitante:

문혜지

Resumen de: KR20260034348A

본 발명은 에코 보조배터리 대여 서비스에 관한 것으로서 배터리 셀에 의하여 압전소자에서 발생한 전기 에너지를 저장할 수 있게 하고, 충전 회로에 의하여 압전 소자에서 나오는 불규칙한 전압을 안정적인 전기 에너지 변환할 수 있게 함으로써 충전 과정에서 화석 연료 기반 전력 사용으로 탄소배출을 증가시키는 문제점을 해소하도록 함으로써 기존의 충전 과정에서 화석 연료 기반 전력 사용으로 탄소배출을 증가시키는 문제점을 해소 하도록 한 것이다.즉 본 발명은, 보조배터리에 있어서 압전소자에서 발생한 전기 에너지를 저장할 수 있게 에너지저장시스템(ESS)을 이용한 배터리 셀, 압전 소자에서 나오는 불규칙한 전압을 안정적인 전기 에너지 변환할 수 있게 정전압 회로로 변경한 충전 회로로 구성한 것이다.따라서, 본 발명은 배터리 셀에 의하여 압전소자에서 발생한 전기 에너지를 저장할 수 있게 하고, 충전 회로에 의하여 압전 소자에서 나오는 불규칙한 전압을 안정적인 전기 에너지 변환할 수 있게 함으로써 충전 과정에서 화석 연료 기반 전력 사용으로 탄소배출을 증가시키는 문제점을 해소하도록 함으로써 기존의 충전 과정에서 화석 연료 기반 전력 사용으로 탄소배출을 증가시키는 문제점을 해소하도록 한