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BLADE BATTERY AND BATTERY PACK INCLUDING SAME

Resumen de: EP4708422A1

Provided are a blade battery and a battery pack including the same. The blade battery includes: at least one positive plate, with a first tab and a second tab respectively disposed at two adjacent edges; a plurality of negative electrode plates, each having a third tab and a fourth tab respectively disposed at two adjacent edges, each of two opposite sides of each positive electrode plate being covered by one negative electrode plate, the first tab and the third tab being located at two opposite sides of the blade battery, and the second tab and the fourth tab being located at two opposite sides of the blade battery, respectively; a positive cover plate connected to the first tab and the second tab to form a positive electrode; and a negative cover plate connected to the third tab and the fourth tab to form a negative electrode.

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, CATHODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE SAME AND LITHIUM SECONDARY BATTERY

Resumen de: EP4708394A1

A cathode active material for a lithium secondary battery, a cathode for a lithium secondary battery including the same, and a lithium secondary battery are provided. The cathode active material for a lithium secondary battery includes: a first cathode active material including a lithium-nickel metal oxide in the form of a single particle; and a second cathode active material including lithium manganese iron phosphate. Accordingly, a lithium secondary battery with improved cell safety and high energy density per unit cell volume may be achieved.

POSITIVE ELECTRODE, LITHIUM SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE

Resumen de: EP4707830A1

The present invention relates to a positive electrode comprising a positive electrode active material, wherein a resistance component ratio, as defined by equation 1 below, is 2 or more. Equation 1 R_ct / R_s. In the equation, R_ct means a charge transfer resistance of the positive electrode, which is measured in a first frequency range for a secondary battery comprising the positive electrode, R_s means a surface or interface resistance of the positive electrode, which is measured in a second frequency range for the secondary battery comprising the positive electrode, the first frequency range is from 1 Hz to 1 kHz, and the second frequency range is from more than 1 kHz to 1,000 kHz.

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.

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.

ELECTRONIC DEVICE COMPRISING BATTERY STRUCTURE FOR HEAT DISSIPATION

Resumen de: EP4708513A1

According to an embodiment, an electronic device includes a printed circuit board including an electronic component and a battery. The battery includes a metal can case including a plate and a cover formed from a first metal material, and an electrode assembly disposed in the metal can case. The plate includes a first layer formed from a second metal material, and a second layer, formed from at least the first metal material, disposed on the first layer, and facing the electrode assembly. Heat conductivity of the second metal material is greater than heat conductivity of the first metal material, for dissipating heat, generated by the electronic component, transmitted through a heat-conductive member by thermally contacting with the plate.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4708532A1

A battery module according to one embodiment of the present disclosure includes: a plurality of battery cells; a module casing that accommodates the plurality of battery cells, and having a first venting hole on one side surface, the first venting hole that discharges venting gas to outside; and a rupture member coupled to the module casing so as to cover the first venting hole from both sides, and that is at least partially ruptured by the venting gas.

ELECTRIC VEHICLE RANGE EXTENDER INTEGRATION

Resumen de: EP4707032A1

Example methods to manage a plurality of battery packs of an electric vehicle include initiating a charging process for a primary battery pack and an auxiliary battery pack, determining that an Open Circuit Voltage (OCV) of the primary battery pack matches an OCV of the auxiliary battery pack, and based on determining that the OCV of the primary battery pack matches the OCV of the auxiliary battery, connecting the primary and auxiliary battery packs in parallel and initiating parallel charging of the primary battery pack and the auxiliary battery pack.

MONOMER FOR ELECTROLYTE, ELECTROLYTE FOR SECONDARY BATTERY INCLUDING THE SAME, METHOD OF PREPARING THE SAME AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4707282A1

A monomer for an electrolyte according to the embodiments of the present disclosure may include a compound represented by Formula 1. The lithium secondary battery according to the embodiments of the present disclosure includes a cathode, an anode, and an electrolyte, and the electrolyte may include a polymer formed by polymerizing the compound represented by Formula 1.

ENERGY STORAGE CABINET

Resumen de: EP4708510A1

The present disclosure discloses an energy storage cabinet, including: a cabinet body and a base for supporting the cabinet body; the cabinet body is provided with an accommodating space, and a battery is accommodated in the accommodating space; the base includes two first beams which are opposite in a first direction, and two second beams which are opposite in a second direction; each first beam includes a first supporting portion, a middle connecting portion and a second supporting portion which are sequentially connected in the second direction; one second beam is connected between the two first supporting portions which are opposite in the first direction; the other second beam is connected between the two second supporting portions which are opposite in the first direction; fork through holes are respectively formed in each first supporting portion and each second supporting portion; the fork through holes respectively formed in the first supporting portions define a first fork channel; the fork through holes respectively formed in the second supporting portions define a second fork channel; and the first fork channel and the second fork channel extend in the same direction.

BATTERY ASSEMBLY

Resumen de: EP4708544A1

Disclosed is a battery assembly. The battery assembly includes a case providing an inner space; a first battery array accommodated inside the case and including a plurality of battery cells stacked in a left and right direction; a second battery array accommodated inside the case and including a plurality of battery cells stacked in the left and right direction, the second battery array being stacked with the first battery array in the left and right direction; a first bus bar electrically connected to a front side of the first battery array and electrically insulated from the second battery array; and a second bus bar electrically connected to a front side of the second battery array and electrically insulated from the first battery array.

SEPARATOR AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY

Resumen de: EP4708539A1

The present disclosure provides a separator, a preparation method thereof, and a secondary battery using the same. The separator comprises a substrate layer and a hybrid coating applied to at least one surface of the substrate layer. In parts by weight, the hybrid coating comprises 25 parts to 45 parts of a component A, 13 parts to 16 parts of a component B, and 6 parts to 8 parts of a binder. The component A is cellulose with a characteristic peak for a molecular chain spacing at 2θ of 10° to 35°, and the component B is at least one selected from the group consisting of an oxide, a ceramic fiber, and a metal-organic framework. Compared to the prior art, the separator provided by the present disclosure adopts the hybrid coating in which cellulose with a characteristic peak for a molecular chain spacing at 2θ of 10° to 35° is adopted as the component A and contents of the component A, the component B, and the binder are controlled within the above ranges. As a result, the present disclosure effectively enhances the heat resistance of the separator and guarantees the high safety of batteries even when used under extreme conditions.

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 ASSEMBLY COVER, BATTERY ASSEMBLY, AND VEHICLE INCLUDING SAME

Resumen de: EP4708553A1

Presented are a battery assembly cover, a battery assembly, and a vehicle including same, the battery assembly cover comprising: a base which is coupled to an open surface of a battery assembly case to seal the battery assembly case, has a plurality of first holes formed therein, and allows battery cell leads to pass through each of the first holes to expose the battery cell leads to the outside; and an insulation part which is coupled to the base, is positioned between the edge of the first holes of the base and the battery cell leads to insulate the battery cell leads from the base, and has second holes through which the battery cell leads pass.

BATTERY PACK

Resumen de: EP4708456A1

Disclosed is a battery pack. The battery pack includes a case providing an inner space and having an opening; a plurality of battery cells positioned inside the case; and a cooling channel configured to partition the opening.

BATTERY PACK

Resumen de: EP4708554A1

Disclosed herein relates to a battery pack for accommodating a cell assembly comprising a pair of external terminals, including: a pack case in which a cell assembly is seated, wherein the pack case includes: a base plate supporting a lower part of the cell assembly; and a protective cap coupled to a center part of the base plate, wherein the protective cap covers an external terminal of each cell assembly accommodated.

POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND LITHIUM-SULFUR BATTERY

Resumen de: EP4708373A1

The present application provides a cathode material comprising the following raw materials in parts by weight: 10 parts of a porous carbon conductive agent, 7 to 14 parts of an additive, 38 to 44 parts of an active material, and 32 to 40 parts of a solid electrolyte, wherein the active material comprises sulfur powder, and the additive comprises one or both of phosphorus pentasulfide and phosphorus trisulfide. Elemental sulfur reacts with lithium ions during battery discharge to form lithium sulfide, which can react with the additive to in-situ generate a lithium phosphorus sulfur solid electrolyte. The lithium phosphorus sulfur solid electrolyte not only enables most of the active material to participate in the charge-discharge cycle, improving the utilization rate of the active material, but also forms an ionic conductive network, allowing lithium ions to conduct faster. It also enhances the ionic conductivity of the cathode material, achieving high specific capacity and cycling stability in all-solid-state lithium-sulfur batteries under high areal loading conditions.

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).

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.

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

Nº publicación: EP4708427A1 11/03/2026

Solicitante:

FLEXION CO LTD [KR]
Flexion Co., Ltd

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.