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1441
results.
Updated on
07/08/2025 [09:25:00]
Results 100 to 125 of 1441
Absstract of: EP4597716A1
A battery pack according to one embodiment of the present disclosure includes: a cell module assembly including a battery cell stack in which a plurality of battery cells are stacked; a pack case configured to house the cell module assembly and including a venting port on at least one surface; and an outer cover that covers at least one surface of the pack case and is arranged apart from the outer surface of the pack case by a prescribed distance, wherein a space between the pack case and the outer cover forms a venting flow path through which venting gas generated during the thermal event of the battery cell moves, and wherein the venting gas is discharged to the outside through an opened space between the outer cover and the pack case formed on at least one end part of the outer cover.
Absstract of: EP4597684A1
A battery pack according to one embodiment of the present disclosure includes: a cell module assembly including a battery cell stack in which a plurality of battery cells are stacked; a pack case that houses the cell module assembly in its internal space; and a fire extinguishing unit capable of extinguishing the battery cells by supplying a fire extinguishing agent into the pack case when a thermal event occurs in the battery cells, wherein the pack case includes at least one drain port on at least one of a longitudinal edge and a widthwise edge of the bottom surface of the pack case.
Absstract of: EP4597655A1
A rechargeable battery includes a wound-type electrode assembly, a heat pipe, a can, and a cap plate. The heat pipe is disposed inside of the electrode assembly at a distance from a wound center of the electrode assembly, and the heat pipe surrounds the wound center. The can includes an internal space in which the electrode assembly and the heat pipe are positioned. The cap plate is coupled to an end of an opening of the can to close and seal the can, the cap plate is connected heat pipe, and the cap plate is configured to provide dissipation of heat from the heat pipe.
Absstract of: EP4597694A1
A rechargeable battery includes an electrode assembly (130) including a first electrode, a second electrode, and a separator, a current collecting plate (140, 150) electrically connected to one of the first electrode and the second electrode, a case accommodating the electrode assembly (130) and the current collecting plate (140, 150) therein, and a cap plate coupled to an end of the case to seal the case. The current collecting plate (140, 150) includes a flat outer surface (51) and an inner surface including a plurality of welding parts protruding toward the electrode assembly (130).
Absstract of: EP4597595A1
An electrode assembly (100) including: a first electrode plate (110) including a first electrode substrate (111) having a first electrode active material layer (112) thereon; a first separator (120); a second electrode plate (130) including a second electrode substrate (131) having a second electrode active material layer (132) thereon; and a second separator (140). The first electrode plate (110), the first separator (120), the second electrode plate (130), and the second separator (140) are sequentially stacked and wound about a winding axis, and the first electrode substrate (111), the first separator (120), and the second separator (140) extend at least one turn beyond a distal end (130a) of the second electrode plate (130) in the wound electrode assembly (100).
Absstract of: EP4597710A1
A battery pack according to one embodiment of the present disclosure includes: a cell module assembly including a battery cell stack in which a plurality of battery cells are stacked; an electrical connection unit including a connector for electrical connection between the battery packs; a pack case that houses the cell module assembly and the electrical connection unit in the inside thereof and is opened at its upper surface; and a fire extinguishing tank that covers the upper part of the pack case, wherein the pack case includes a connector through-hole portion having an opening shape provided on a lower surface of the pack case to allow the connector to pass through, wherein the fire extinguishing tank includes a connector through-hole portion having a tubular shape that penetrates the fire extinguishing tank and protrudes upward from the upper surface of the fire extinguishing tank, and wherein the connector is located through the connector through-hole portion and the connector through-hole portion, thereby being electrically connected between the plurality of stacked battery packs.
Absstract of: EP4597692A1
A battery module according to an exemplary embodiment of the present invention includes a battery cell stack in which a plurality of battery cells are stacked side by side and adjacent to each other; a top frame covering an upper surface of the battery cell stack; a bus bar frame coupled to the top frame and covering a side of the battery cell stack; and a module frame having a quadrangular tube shape and configured to accommodate a battery cell assembly formed by combining the battery cell stack, the top frame, and the bus bar frame, wherein the top frame includes a first protrusion protruding toward an upper surface of the module frame at one end portion of the top frame, and wherein the module frame includes a second protrusion protruding toward the top frame at a position corresponding to the other end portion located on an opposite side to the one end portion of the top frame on an inner side of the upper surface of the module frame.
Absstract of: EP4597618A1
This negative electrode for alkaline secondary batteries comprises a negative electrode current collector and a negative electrode mixture that is supported by the negative electrode current collector. The negative electrode mixture contains a hydrogen storage alloy that has an Fe content of 200 to 900 ppm by mass, and a carbon black that has an Fe content of 1,000 to 2,800 ppm by mass.
Absstract of: EP4597701A1
A connector is fixed to a fixed member with waterproof structure while manufacturing cost is reduced. The waterproof structure of a connector includes fixed member 2 provided with connector insertion port 2A and a plurality of screw insertion ports 2B, connector 3 including a connector body 31 and flange part 32, screw receiving member 4 disposed facing a second surface of fixed member 2 and into which fixing screw 7 having passed through flange part 32 and fixed member 2 is screwed, packing member 5, and O-ring 6. Screw receiving member 4 includes a plurality of screw fixing parts 41 into which fixing screws 7 are screwed without passing through corresponding screw fixing parts 41, and coupler 42 that couples the plurality of screw fixing parts 41. The waterproof structure is formed in which O-ring 6 seals an opening of each of screw insertion ports 2B while fixing screw 7 having inserted through screw insertion hole 33 of flange part 32 and the corresponding one of the screw insertion ports 2B is screwed into corresponding one of screw fixing parts 41 with O-ring 6 interposed therebetween, and packing member 5 is sandwiched between flange part 32 and fixed member 2 to seal an opening of connector insertion port 2A with packing member 5.
Absstract of: EP4597668A1
In a non-aqueous electrolyte secondary battery according to the present disclosure, a positive electrode comprises a lithium-containing composite oxide, and a sulfonic acid compound which is represented by formula (I) and is present on a particle surface of the lithium-containing composite oxide, and a negative electrode mixture layer of a negative electrode includes first graphite particles having an internal porosity of at most 5% and second graphite particles having an internal porosity of 8% to 20%. A thickness T1 of a first negative electrode mixture layer facing a negative electrode core and a thickness T2 of a second negative electrode mixture layer facing the positive electrode satisfy 0.1≤T1/(T1+T2)≤0.9, and a ratio C1 of the first graphite particles to the total mass of the first and second graphite particles in the first negative electrode mixture layer, and a ratio C2 of the first graphite particles to the total mass of the first and second graphite particles in the second negative electrode mixture layer satisfy C1
Absstract of: EP4597731A1
Spring back is suppressed with a simple configuration. An electric device includes lead plate 30 including bent segment 32 bent along bend line 31, circuit board 3 electrically connected to bent segment 32 of lead plate 30, and holder 20 that holds lead plate 30. Holder 20 includes holder portions 26 that lock part of upper surfaces of bent segments 32. Holder portion 26 is configured to abut on and hold the part of the upper surface of bent segment 32 while the holder portion opposes a direction of spring back caused by bent segment 32 of lead plate 30 being bent along bend line 31. Circuit board 3 includes connection region 4 electrically connected to lead plate 30. Bent segment 32 is electrically connected to connection region 4.
Absstract of: WO2024071147A1
Provided are a method for removing at least one metal that can effectively remove metals from lithium ion battery waste, and a method for recovering metals. A method for removing at least one metal from lithium ion battery waste, wherein the lithium ion battery waste has a cathode material with cathode-derived metals adhering onto a cathode current collector containing aluminum, the aluminum being a metal to be removed, wherein the method includes, in any order: a crushing step of crushing the lithium ion battery waste and separating at least a part of the cathode-derived metals from the cathode current collector; and an alkali separation step of separating at least a part of the cathode-derived metals from the cathode current collector by bring the lithium ion battery waste into contact with an alkaline solution to dissolve the aluminum, wherein the method further includes, after the crushing step, a sieving step of sieving the lithium ion battery waste into a material on sieve and a material under sieve containing the cathode-derived metals separated from the cathode current collector in the crushing step, and wherein, when the sieving step is performed before the alkali separation step, at least a part of the material on sieve obtained in the sieving step is subjected to the alkali separation step.
Absstract of: WO2024069356A1
High voltage modular power distribution unit for electric or hybrid vehicles, the modular power distribution unit being equipped with two or more base electric modules (1) mechanically connected to each other, the base electric module (1) having: - at least one input port connected to an electric power source, - at least one output port connected to an electric user, - a plurality of electric cables and a first plurality of electric connection bus bars, and - a base structure, provided with a plurality of mechanical connection elements, wherein the two or more base electric modules (1) are electrically connected to each other by means of a second plurality of intermodular bus bars (15).
Absstract of: CN119968329A
The invention relates to a device (1) for producing an electrode stack (2) with planar electrode elements (3). The device (1) comprises a stacking wheel (10) which is rotatably mounted about a stacking wheel axis (11) and has a plurality of stacking wheel fingers (12) which define respective intermediate spaces (13) for receiving the electrode elements (3); and a scraping unit (20) which is designed to sequentially remove the electrode elements (3) from the respective intermediate spaces (13) by cooperating with a rotational movement (14) of the stacking wheel (10) about the stacking wheel axis (11). The device comprises a receiving unit (30) for sequentially receiving the electrode elements (3) removed from the intermediate space (13). The receiving unit (30) comprises a base structure (31) on which the electrode elements (3) received in the receiving unit (30) can be stacked, and a limiting element (32) which forms a stop for the electrode elements (3) received in the receiving unit (30) and is arranged stationary with respect to the stacking wheel axis (11).
Absstract of: EP4597641A1
A cathode current collector for a lithium secondary battery according to embodiments of the present disclosure may include an aluminum layer, aluminum-copper alloy layers formed on the aluminum layer, and copper layers formed on the aluminum-copper alloy layer. Accordingly, even when a high-density cathode active material layer is formed on the cathode current collector, deformation or fracture of the cathode current collector may be prevented, thereby improving the cycle life of the secondary battery.
Absstract of: EP4597700A1
The present invention suppresses a temperature rise of a battery cell due to a bus bar plate connected to first and second lead plates. In battery system 1 in which a plurality of battery cells 4A included in battery block 4 are connected in series as well as in parallel by connecting the end-face electrodes of battery cells 4A with first lead plate 7A and second lead plate 7B that are connected by bus bar plates 3, a temperature rise of a specific battery cell 4A caused by bus bar plates 3 is suppressed by ensuring cooling gap 5 between bus bar plates 3 and battery block 4, and enabling the air in cooling gap 5 to rise quickly when the temperature of bus bar plate 3 rises due to the Joule heating of the load current.
Absstract of: EP4597681A1
A method of easily recycling power supply devices is provided. Each power supply device includes battery blocks (10) and a circuit board (30) accommodated in a housing (20), each of the battery blocks (10) including secondary battery cells. The method includes: measuring resistance values based on current and voltage values of the devices before and after starting one of charging and discharging of power supply devices (100) for a predetermined time not longer than 10 seconds and based on current and voltage values after finishing the one of charging and discharging of the devices; grouping one or more power supply devices (10), the one or more power supply devices each having a difference between the resistance values which is within a predetermined range; taking out the battery blocks (10) accommodated in the housing (20) by disassembling the devices; and reproducing, according to a result of the grouping, a power supply device: by constituting a new power supply device (100') by accommodating the battery blocks in a new housing; or by reproducing a power supply device by combining a new battery block with a separated housing (20) and a separated circuit board (30).
Absstract of: EP4597633A1
A positive electrode for a nonaqueous electrolyte secondary battery includes a positive electrode mixture containing a positive electrode active material, and a binder having a polymer structure derived from vinylidene fluoride. An ATR-IR spectrum of the positive electrode mixture has an α peak belonging to an α-type crystal in the polymer structure in a wavelength region of 760 to 764 cm<-1>, and a β peak belonging to a β-type crystal in the polymer structure in a wavelength region of 838 to 842 cm<-1>. A maximum absorption intensity H(α) of the α peak and a maximum absorption intensity H(β) of the β peak satisfy 0.2 ≤ H(α)/H(β) ≤ 5. With this configuration, in the case of using a ferroelectric, it is possible to improve the capacity retention rate while maintaining the capacity of the nonaqueous electrolyte secondary battery.
Absstract of: EP4597632A1
A positive electrode 13 for secondary battery of the present disclosure includes a positive electrode current collector 11 and a positive electrode active material layer 12 supported on the positive electrode current collector 11, where the positive electrode active material layer 12 includes a positive electrode active material and polyvinyl alcohol modified with a phosphorus compound. A method for manufacturing the positive electrode 13 for secondary battery includes: preparing a polymer solution including polyvinyl alcohol, a phosphorus compound, and a solvent; preparing a positive electrode slurry including the polymer solution and the positive electrode active material; and applying the positive electrode slurry to the positive electrode current collector 11 to form the positive electrode active material layer.
Absstract of: CN119923744A
A battery and thermal management system (100; 200); 300); 400, 400; 500), having a battery (104; 204); 304, 304; 404, 404; 504) and a heat transfer arrangement (102; 202); 302; 402, 402; 502). An electrical terminal extends from each cell in the battery, and an adjacent pair of terminals (112; 212, 212; 324; 324; 410, 410; 512) are electrically connected together. The heat transfer arrangement has an inlet channel (120; 310); 420); 520), an outlet channel (122; 312; 312; 414; 414; 522) and a plurality of heat transfer channels (124; 314, 314; 416) is provided. The heat transfer channel (124; 314, 314; 416; 416; 514) is defined between the respective inflow wall (126; 330, 330; 426; 426; 518) and an outflow wall (128; 332; 332; 428; 428; 520) and between the inlet channel (120; 310); 412) and the outlet channel (122; 312; 312; 414). In each heat transfer channel (124) there is a permeable barrier (130; 316; 316; 418, 418; 516), the permeable barrier (130; 316; 316; 418, 418; 516) is inclined such that it is positioned in the heat transfer channel (124; 314, 314; 416; 416; 514) farthest from the inflow wall (126; 330, 330; 426; 426; 518), and in which the heat transfer channel (124; 314, 314; 416; 416; 514) at a second end closest to the inflow wall (126; 330, 330; 426; 426; 518) is provided. Each permeable barrier (130; 316; 316; 418, 418; 516) along the permeable barrier (130; 316; 316; 418, 418; 516) and the length of the terminal (112; 212, 212; 324; 324; 410, 410; 512) of
Absstract of: WO2024068583A1
The technology of the present invention generally relates to the field of battery technology, and more particularly relates to a cell fixture assembly for testing of a single electrochemical cell or a number of electrochemical cells stacked on top of each other, wherein the cell fixture assembly comprises at least one cell fixture and a base station; wherein the cell fixture comprises: at least one fixed base plate; at least two moveable plates arranged parallel to the base plate; whereby the moveable plates have oppositely arranged surfaces for contacting the electrochemical cell mounted between them; whereby the fixed and moveable plates comprise a plurality of apertures that are at least partially aligned to create a plurality of vertical channels that extend through said plates; a pressure sensor means, disposed between the base plate and at least one of the moveable plates, comprising a sensor member arranged to support said moveable plate, and configured for measuring a pressure applied to the electrochemical cells; a plurality of rotatable rods, insertable in the plurality of vertical channels, that are configured to rotatably couple with at least one of the moveable plates; whereby a rotation of the plurality of rotatable rods causes one of the moveable plates to move relative to the other moveable plate, thereby clamping or releasing the electrochemical cell mounted between them; and, a plurality of coupling members in connection with the plurality of rotatable rods;
Absstract of: AU2023352888A1
The present disclosure relates to an electrolyte product (1), formed as a solid or semi-solid layer, comprising a polymer-based matrix, having dispersed therein an amount of an electrolyte salt composition (4) and an amount of an additive salt composition (5). The disclosure further relates to a method of manufacturing a battery cell product, a battery cell product comprising the electrolyte product, and a battery product comprising a plurality of battery cell products.
Absstract of: EP4597626A1
Provided is a positive electrode material for a lithium ion secondary battery, including aggregated particles including aggregated multiple primary particles of a positive electrode active substance containing lithium iron phosphate coated with a carbonaceous film, the positive electrode active substance having a prescribed composition containing lithium iron phosphate, the positive electrode material having a change rate of a lattice area of a b-c axis plane before charging and after full charging (((lattice area before charging-lattice area after full charging)/lattice area before charging) × 100) of 1.10% or more and 1.33% or less. The positive electrode material has excellent cycle characteristics and high input and output characteristics in using as a positive electrode of a lithium ion secondary battery.
Absstract of: EP4597679A1
A non-aqueous electrolyte secondary battery comprises: an electrode body obtained by winding a negative electrode (12) in which a negative electrode mixture layer (32) is formed on a negative electrode core body (30) and a positive electrode, with a separator therebetween; and a non-aqueous electrolyte. The non-aqueous electrolyte secondary battery is characterized in that: the negative electrode (12) has, at the winding direction inner-end side of the electrode body, a non-facing part (12a) which does not face the positive electrode with the separator therebetween; the non-facing part (12a) has a mixture non-facing part (12c) in which the negative electrode mixture layer (32) is formed on at least one surface of the negative electrode core body (30), from the winding direction outer end of the non-facing part (12a) and toward the winding direction inner side; and the average value of a mixture surface distance which is between the mixture non-facing part (12c) and the negative electrode (12e) positioned one turn outward of the mixture non-facing part (12c) is not less than 90 µm.
Nº publicación: EP4597607A1 06/08/2025
Applicant:
PANASONIC IP MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd
Absstract of: EP4597607A1
A disclosed positive electrode is a positive electrode for a nonaqueous electrolyte secondary battery. The positive electrode includes a positive electrode mixture layer. The positive electrode mixture layer contains a positive-electrode active material, a conductive material, a fluorine-containing polymer, and a dispersant. The positive-electrode active material includes a composite oxide represented by a composition formula LiyNixM(1-x)O2-δ (where x, y, and δ satisfy 0.6≤x≤1, 0
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