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Conductive biopolymer material

Resumen de: GB2644160A

A method of preparing an ionically conducting biopolymer material and a biopolymer material prepared or preparable by the method. The invention further relates to use of the biopolymer material as a solid-state electrolyte as well as a battery wherein the solid-state electrolyte is a biopolymer material of the present invention. The method comprises the steps of: a) providing an aqueous mixture comprising water, pectin, and gelatine; b) causing the aqueous mixture formed in step a) to undergo gelation to form a gel; and c) contacting the gel with an aqueous solution of at least one water soluble salt such that dissociated positive and negative ions of the at least one water soluble salt passively diffuse into the gel. The preferred salts are potassium citrate, aluminium potassium sulphate or potassium sulphate. Surfactants and/or plasticisers may also be included.

BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: EP4715965A2

Disclosed is a battery pack including a plurality of battery cells; a bus bar assembly having a first side and a second side, the second side of the bus bar assembly provided to a first side of the plurality of battery cells and electrically connected to the plurality of battery cells; a cooling unit disposed at the second side of the bus bar assembly and arranged between the plurality of battery cells along a longitudinal direction of the battery pack; and a side structure unit configured to accommodate the cooling unit and the plurality of battery cells, wherein opposite ends of the cooling unit are fixed to the side structure unit.

BATTERY TOP COVER ASSEMBLY WITH WELDED TERMINAL POSTS

Resumen de: EP4715977A2

Disclosed is a battery top cover assembly with welded terminal posts, which includes a top cover plate, terminal post structures, caps, sealing rings, upper insulating parts, and a lower insulating part. Two ends of the top cover plate are provided with mounting holes in the length direction; a terminal post structure is mounted in each mounting hole through a cap, a sealing ring, an upper insulating part, and the lower insulating part; a terminal post portion of the terminal post structure in one mounting hole includes a copper part and an aluminum part; and the terminal post structure in the other mounting hole is an aluminum terminal post, thereby improving production quality and yield and reducing production cost.

BIPOLAR UNIT CELL AND BIPOLAR BATTERY COMPRISING SAME

Resumen de: EP4715925A1

According to an embodiments of the present disclosure, provided is a bipolar unit cell comprising:a laminate which includes a positive electrode current collector, a positive electrode material layer formed on one surface of the positive electrode current collector, a negative electrode current collector, a negative electrode material layer formed on one surface of the negative electrode current collector, and a separator, and in which the positive electrode material layer and the negative electrode material layer are stacked so as to face each other while interposing a separator between them, anda sealing portion that is attached form the other surface of the positive current collector to the other surface of the negative current collector to integrally form the laminate and seal the inside,wherein a conductive layer is formed on the outside of at least one of the positive electrode current collector and the negative electrode current collector, and a bipolar battery having a structure in which two or more of the bipolar unit cells are stacked.

ELECTRODE SHEET MANUFACTURING METHOD AND COATING APPARATUS

Resumen de: EP4715893A1

An electrode sheet manufacturing method and a coating apparatus. The electrode sheet manufacturing method comprises the steps of: coating a surface to be coated of a current collector with a first active material so as to form a first film layer; coating said surface with a second active material to form a second film layer; coating said surface with a third active material so as to form a third film layer; and after the first film layer, the second film layer and the third film layer are all formed, the second film layer and the third film layer being both connected to the first film layer, the second film layer and the third film layer being sequentially distributed at intervals in a first direction, the second film layer and the third film layer being located on the same side of the first film layer, and the first film layer, the second film layer, the third film layer and said surface jointly defining a tab welding slot. In the method, the tab welding slot is manufactured by coating, without the need to manufacture the tab welding slot by laser cleaning, and the method is beneficial to reducing the manufacturing cost of electrode sheets.

BATTERY CELL AND METHOD AND SYSTEM FOR MANUFACTURING SAME, AND BATTERY AND ELECTRIC DEVICE

Resumen de: EP4715974A1

Embodiments of this application provide a battery cell (7), a method and system for manufacturing same, a battery, and an electrical device. The battery cell (7) includes: a housing (20), on which an opening (21) is made; an electrode assembly (10), accommodated in the housing (20), where a first tab (12) is disposed on the electrode assembly (10) at an end oriented toward the opening (21); and an end cap (30), configured to fit and cover the opening (21). The end cap (30) includes a cap body (31) and a first protruding portion (32) connected to the cap body (31). A fragile portion (311) is disposed on the cap body (31). The end cap (30) is configured to rupture along the fragile portion (311) when an internal pressure of the battery cell (7) reaches a threshold, so as to release the internal pressure. The first protruding portion (32) protrudes from the cap body (31) toward the electrode assembly (10), and is configured to support the first tab (12) so that an avoidance clearance (G) configured to avoid the fragile portion (311) is formed between the first tab (12) and the cap body (31). This application reduces the risk that the first tab (12) crushes the fragile portion (311), and improves the sealing performance and safety performance of the battery cell (7).

ELECTRODE SURFACE ANALYSIS METHOD AND ELECTRODE SURFACE ANALYSIS SYSTEM

Resumen de: EP4715372A1

The present disclosure relates to a method and system for analyzing an electrode surface, and more specifically, to a method and system for analyzing an electrode surface that can precisely analyze foreign substances remaining on the electrode surface during an electrode manufacturing process using a hyperspectral CCD to increase process efficiency and product reliability.

BATTERY PACK AND DEVICE COMPRISING SAME

Resumen de: EP4715987A1

A battery pack according to an embodiment of the present disclosure comprises: a battery module; a pack frame in which the battery module is housed and one side thereof is open; a pack cover that covers the open one side of the pack frame; and a fire-resistant sheet attached to one end of the pack cover. The battery module comprises a battery cell stack in which a plurality of battery cells are stacked; a venting part formed on one surface of the battery module to discharge venting gas; and a protruding pin that protrudes toward the pack cover on one surface of the battery module.

BATTERY PACK AND AUTOMOBILE COMPRISING SAME

Resumen de: EP4715992A1

Disclosed is a battery pack and a vehicle including the same. The battery pack includes a plurality of battery modules in which a plurality of battery cells are stacked; a pack case in which the plurality of battery modules are accommodated; and a fastening member configured to fasten the pack case, wherein the fastening member is configured to be separated by an internal pressure of the pack case.

OPTICAL SENSOR

Resumen de: EP4715358A1

Various embodiments of optical sensors such as optical leak sensors are provided. Example embodiments of the optical sensors described herein may include an optical prism comprising a plurality of substantially semicylindrical grooves, a plurality of wires disposed within the plurality of substantially semicylindrical grooves (wherein the plurality of wires is configured to provide heat to the sensing surface of the optical prism in response to application of power), and/or a microcontroller configured to provide the power to the plurality of wires.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE COMPRISING BATTERY MODULE

Resumen de: EP4715986A1

Disclosed is a battery module with improved manufacture efficiency, and a battery pack and a vehicle including the same. The battery module includes a plurality of battery cells, and a plurality of module frames configured to accommodate the plurality of battery cells, respectively, and provided as sharable frames to be coupled to each other.

ELECTROLYTE ADDITIVE, ELECTROLYTE, AND BATTERY

Resumen de: EP4715939A1

The present disclosure provides an electrolyte additive, an electrolyte, and a battery. The electrolyte additive comprises: a first additive and a second additive. The structure of the first additive is as represented by formula 1, and the second additive comprises a trinitrile substance.

SECONDARY BATTERY, PACK AND ELECTRONIC APPARATUS

Resumen de: EP4715920A1

A secondary battery (100), a pack, and an electronic apparatus are provided. The secondary battery (100) includes an electrode assembly (120) formed by a first electrode sheet (121), a first separator (141), a second electrode sheet (122), and a second separator (142) and an insulating film (300). A protruding end of a tail end (141e) of the first separator (141) and a tail end (142e) of the second separator (142) constitutes the tail end (120e) of the electrode assembly (120). A tail end (122e) of the second electrode sheet (122) extends beyond a tail end (121e) of the first electrode sheet (121). The tail end (120e) of the electrode assembly (120) extends beyond the tail end (122e) of the second electrode sheet (122). A starting end (300s) of the insulating film (300) extends beyond the tail end (120e) of the electrode assembly (120).

POLE, POLE COMPONENT AND BATTERY

Resumen de: EP4715978A1

A pole (11), a pole component (10), and a battery are provided. The pole (11) includes a first pole portion (111) and a second pole portion (112). An outer periphery of the first pole portion (111) is convexly provided with a first flange (1114). An end of the second pole portion (112) is provided with a mating groove (1121), and the first end (1111) is provided in the mating groove (1121) and engages with the second pole portion (112). An outer periphery of the second pole portion (112) is convexly provided with a second flange (1125), the second flange (1125) is provided with a first connecting groove (1126), and the first flange (1114) is at least partially located in the first connecting groove (1126) and engages with the second flange (1125). The pole improves a bonding force between the first pole portion and the second pole portion.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND METHOD OF PREPARING THE SAME

Resumen de: EP4714906A2

The present application relates to a positive electrode active material for a rechargeable lithium battery, and a method for preparing a positive electrode active material for a rechargeable lithium battery, the positive electrode active material including: a core particle comprising a lithium nickel-based composite oxide represented by Chemical Formula 11; and a coating layer located on a surface of the core particle and comprising one element or a combination thereof selected from the group consisting of Al, B, Ba, Ca, Ce, Co, Cr, Cu, Fe, Mg, Mn, Mo, Nb, Si, Sn, Sr, Ti, V, W, Y, Zn, and Zr, wherein the positive electrode active material has a value defined by Mathematical Formula 1 of greater than or equal to about 5.        Chemical Formula 11     Lia11Nix11M<11>y11M<12>z11O2-b11Xb11wherein, in Chemical Formula 11, 0.9≤a11≤1.2, 0.3≤x11<1, 0 and M<12> are each independently one or more elements selected from Al, B, Ba, Ca, Ce, Co, Cr, Cu, Fe, Mg, Mn, Mo, Nb, Si, Sn, Sr, Ti, V, W, Y, Zn, and Zr, and X is one or more elements selected from F, P, and S, ∑MxEP-EDS/MxICPwherein Mx denotes a metal component contained in the coating layer, Mx (EP-EDS) denotes a mol% of the metal component Mx relative to total metals excluding lithium, present on the surface of the positive electrode active material as measured by Electron Probe - Energy Dispersive Spectroscopy (EP-EDS), a

MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES

Resumen de: EP4714476A2

A peritoneal dialysis system for performing peritoneal dialysis using a pre-determined total volume of dialysate and arranged to employ a plurality of therapy cycles comprising a fill phase in which dialysate is delivered from the dialysis system via a patient line, a dwell phase, and a drain phase in which fluid is drained via the patient line, the system comprising: at least one pump chamber controllable to move fluid; a patient line in fluid communication with the at least one pump chamber to receive dialysate from the at least one pump chamber for delivery and to deliver fluid to the at least one pump chamber; a plurality of valves to selectively control flow in flow channels of the dialysis system; and a control system arranged to control the dialysis system to perform the following: control the at least one pump chamber and the plurality of valves to deliver a first infusion volume of dialysate to the patient line as part of a therapy cycle; measure the first infusion volume of dialysate delivered to the patient line during the therapy cycle; control the at least one pump chamber and the plurality of valves to receive fluid from the patient line as part of the therapy cycle; measure a volume of fluid received from the patient line during the therapy cycle; estimate a volume of ultrafiltration fluid produced during the therapy cycle; estimate a volume of residual fluid for the therapy cycle based on the measured volume of fluid received, the estimated ultrafiltration flu

DIE ASSEMBLY FOR NOTCHING ELECTRODE PLATE OF SECONDARY BATTERY AND METHOD OF MANUFACTURING DIE ASSEMBLY

Resumen de: EP4714621A1

The present disclosure relates to a die assembly used for notching or cutting an electrode plate of a secondary battery and a method of manufacturing the die assembly. The present disclosure provides a method of manufacturing a punch holder and a die holder of a die assembly for notching an electrode plate of a secondary battery, which includes fixedly overlapping a punch holder and a die holder, simultaneously polishing side surfaces of the punch holder and the die holder overlapping each other, setting a center point of each of the punch holder and the die holder overlapping each other, and generating a reference hole passing through each of the punch holder and the die holder overlapping each other at a position spaced from the center point, and a notching die assembly manufactured by the method.

BATTERY SYSTEM WITH SAME WIRELESS COMMUNICATION PERFORMANCE

Resumen de: EP4715955A1

The present disclosure relates to a battery system with identical wireless communication performance, and the battery system for performing wireless communication using a frequency hopping method according to an embodiment includes: battery modules; a single antenna; slave BMSs connected to the battery modules, generating battery information by sensing states of the battery modules, and providing sensing signals including the battery information to the single antenna; and a master BMS connected to an antenna, receiving the sensing signals transmitted through the single antenna through the antenna, obtaining the battery information according to the sensing signals, generating control signals for controlling the battery modules by using the obtained battery information, and transmitting the control signals to the single antenna through the antenna.

ELECTRODE STACKING DEVICE FOR BATTERY CELL ASSEMBLY

Resumen de: EP4715924A1

An electrode stacking device includes a battery frame configured to stack at least one electrode and a separator, the battery frame including: a base part configured to support the at least one electrode and the separator; and a guide part provided on one side of the base part, the guide part including: a first guide part having at least one first accommodation part configured to accommodate an electrode terminal part of the at least one electrode; and a second guide part having at least one second accommodation part configured to accommodate an auxiliary guide part. The first guide part and the second guide part are located at opposite ends of the base part.

BATTERY PACK

Resumen de: EP4715988A1

Disclosed is a battery pack. A battery pack according to one embodiment of the present disclosure may include a base plate; a battery assembly including a case installed on an upper surface of the base plate and a plurality of battery cells positioned inside the case; a partition wall installed on the upper surface of the base plate; and a heat-resistant member provided on one surface of the partition wall.

ELECTRODE ASSEMBLY AND MANUFACTURING METHOD THEREOF

Resumen de: EP4715954A1

An electrode assembly includes a separator sheet including a folding part folded in a zigzag shape to define a plurality of accommodation spaces separated in the vertical direction, and a cover part extending from the folding part and a cell structure accommodated in the plurality of accommodation spaces of the separator sheet. The cell structure includes a first electrode and a second electrode. The cover part of the separator sheet includes a first side cover part covering a first side surface of the cell structure, and the first side cover part includes a first through-hole communicating with at least one accommodation space of the plurality of accommodation spaces of the separator sheet.

WALL-MOUNTING STRUCTURE FOR ENERGY STORAGE DEVICE

Resumen de: EP4715984A1

A wall mounting structure for an energy storage device may include a coupling bracket disposed on the energy storage device and including a support protrusion, and a wall mounting bracket including a rack bracket, on which the support protrusion is supported, and configured to be fixed to a wall.In the wall mounting structure of the energy storage device according to an embodiment of the present disclosure, structural rigidity for supporting the energy storage device may be secured, installation may be made easy by hanging the energy storage device on the wall mounting bracket fixed to the wall, and the need for a structure for supporting the bottom of the energy storage device may be eliminated.

POSITIVE ELECTRODE ACTIVE MATERIALS FOR ALL-SOLID-STATE RECHARGEABLE BATTERIES, PREPARATION METHODS OF POSITIVE ELECTORDE ACTIVE MATERIALS, AND ALL-SOLID-STATE RECHARGEABLE BATTERIES

Resumen de: EP4715888A1

Disclosed are a positive electrode active material for an all-solid-state rechargeable battery, a method of preparing the positive electrode active material, and an all-solid-state rechargeable battery. The positive electrode active material includes a first positive electrode active material including a first lithium nickel-based composite oxide particle in a form of secondary particles formed by agglomeration of primary particles. A first coating layer is disposed on surfaces of the first lithium nickel-based composite oxide particles and includes boron. A second coating layer is disposed on the first coating layer and includes zirconium. The positive electrode active material also comprises a second positive electrode active material comprising a second lithium nickel-based composite oxide particle in a form of single particles. A third coating layer is disposed on surfaces of the second lithium nickel-based composite oxide particles and includes zirconium.

BATTERY MODULE AND BATTERY PACK

Resumen de: EP4715961A1

Provided are a battery module and a battery pack. The battery module includes a casing (1) having a liquid cooling chamber (11); two liquid cooling assemblies (2) disposed on two opposite sides of the liquid cooling chamber (11), respectively; a cell group (3) having multiple cells (31) disposed in the liquid cooling chamber (11); and a cells contact system, CCS, assembly (4) disposed between the cell group (3) and any one of the two liquid cooling assemblies (2). A liquid cooling assembly (2) has a cooling flow channel (21) communicating with the liquid cooling chamber (11).

POSITIVE ELECTRODES AND RECHARGEABLE LITHIUM BATTERIES INCLUDING THE SAME

Nº publicación: EP4715884A1 25/03/2026

Solicitante:

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

Resumen de: EP4715884A1

Provided is a positive electrode including a positive electrode current collector; and a positive electrode active material layer located on the collector and including a positive electrode active material, a copolymer binder, and an amine. The copolymer binder includes a first structural unit including a carboxyl group and a nonionic second structural unit, and the carboxyl group and the amine are present in a form of a salt. The positive electrode increases capacity while reducing production cost, thereby ensuring long cycle-life characteristics and improving high-voltage characteristics and high-temperature storage characteristics. The rechargeable lithium battery including the positive electrode may exhibit high initial charge/discharge capacity and efficiency even under high voltage driving conditions, and can achieve long cycle-life characteristics.