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1900
resultados
Última actualización
05/10/2025 [07:18:00]
Resultados 375 a 400 de 1900
Resumen de: WO2025200657A1
A composite material, a preparation method therefor, a positive electrode sheet, a secondary battery and an electric device, relating to the technical field of batteries. The composite material comprises: a lithium-containing compound, a catalyst and a conductive agent, wherein the lithium-containing compound comprises a lithium element, a carbon element and an oxygen element; the catalyst comprises one or more of an oxide of a transition metal, a carbide of the transition metal, a nitride of the transition metal or a phosphide of the transition metal; and the average particle size D1 of the lithium-containing compound satisfies: D1≤200 nm. The technical solution can improve the battery capacity.
Resumen de: WO2025205674A1
Provided is a negative electrode active material comprising: graphite powder; and Si/C powder that includes Si-C composite particles which contain silicon and a carbon material, wherein the value of ID/IG of the graphite powder, as obtained by the following method 1, is 0.09-0.50. Method 1: In accordance with JIS K 0137:2010, a laser Raman spectrometer is used to irradiate the graphite powder with an argon laser and measure the Raman spectrum, wherein the excitation wavelength is 532 nm, entry slit width is 200 μm, exposure time is 15 seconds, the number of integrations is two, and a diffraction grating has 600 elements per mm. Next, ID and IG, which are the peak intensities at 1360 cm-1 and 1580 cm-1 are determined from the Raman spectrum. Then, the value of ID/IG is determined from ID and IG.
Resumen de: WO2025205444A1
The present invention reduces the possibility of an electrode body being damaged by bending a laminate outer packaging. A bending device (6) bends a peripheral portion (2b) provided on the outer periphery of an accommodation section (2a) of a laminate outer packaging (2), said accommodation section (2a) accommodating an electrode body. The bending device (6) comprises: a bending mechanism (7) that bends the peripheral portion (2b) at a first bending position in the vicinity of the accommodation section (2a) and a second bending position more distant from the accommodation section (2a) than the first bending position, the bending being done while the peripheral portion (2b) passes through a passing region (74); and a movement mechanism (8) that moves the laminate outer packaging body (2). The bending mechanism (7) bends the peripheral portion (2b) such that the bending angle of the peripheral portion (2b) at the second bending position becomes smaller as the peripheral portion (2b) travels farther through the passing region (74), and bends the peripheral portion (2b) at the first bending position in accordance with the bending of the peripheral portion (2b) at the second bending position.
Resumen de: WO2025203613A1
The present invention provides a method for manufacturing a bonded body constituting part of battery in which Na is used for the positive electrode and/or the negative electrode, the method including performing solid-phase bonding of a ceramic component for providing insulation between the positive and negative electrodes of the battery and a metal component on the positive-electrode side or the negative-electrode side via an Al-Si alloy brazing material. The solid-phase bonding includes the following steps. In a high vacuum atmosphere of no more than 10-2 Pa (absolute pressure), a laminated part comprising a bonded part formed from the ceramic component, the Al-Si alloy brazing material, and the metal component, in that order, is heated without applying pressure so that the temperature of the Al-Si alloy brazing material rises to a prescribed maintenance temperature range. Next, the laminated part is highly pressurized in the lamination direction for at least 2 minutes while maintaining the temperature of the Al-Si alloy brazing material in the maintenance temperature range, with the average rate of temperature increase of the Al-Si alloy brazing material from 400°C until reaching the maintenance temperature range is 3.5°C/min or less. Next, after stopping the pressurization of the laminated part, the laminated part is cooled so that the temperature of the Al-Si alloy brazing material descends from the maintenance temperature range to room temperature over at least 10 minu
Resumen de: WO2025200630A1
A wound-type battery cell and a battery pack. The battery cell (3) comprises a casing (5), an electrolyte (6) located in the casing (5), and a positive electrode sheet (10), a negative electrode sheet (20) and a separator (30) which are stacked in the casing (5). The separator (30) is located between the positive electrode sheet (10) and the negative electrode sheet (20), and the positive electrode sheet (10), the negative electrode sheet (20) and the separator (30) are wound to form a battery cell body (4). The negative electrode sheet (20) comprises corners (21), and holes (211) are provided at the corners (21). By providing the holes (211) at the corners (21) of the negative electrode sheet (20), tension at the corners (21) is released; in addition, a polymer coating layer (40) is used to release stress and retain electrolyte, thereby alleviating carbon loss at the corners (21), improving the wettability of the electrolyte (6), and alleviating sodium plating at the corners (21) during cycles.
Resumen de: WO2025204255A1
The present invention addresses the problem of providing a partition member capable of suppressing degradation of heat insulating performance. A partition member (1) is interposed between any pair of cells (92) that, in a stacked body (91) of the plurality of cells (92), are adjacent to each other in the stacking direction. The partition member (1) comprises: a heat insulation layer (2); a spacer layer (5, 5a) which is interposed between the heat insulation layer (2) and a cell (92) and is made of a material different from that of the heat insulation layer (2); and an infiltration suppression layer (6, 6a) which is interposed between the heat insulation layer (2) and the spacer layer (5, 5a) and suppresses the material forming the spacer layer (5, 5a) from infiltrating into the heat insulation layer (2).
Resumen de: WO2025200938A1
Disclosed in the present application are a solid-state electrolyte material and a preparation method therefor, a positive electrode active material, a positive electrode sheet, a solid-state battery and an electric device. The solid-state electrolyte material is of a NASICON crystal structure. In an X-ray diffraction pattern of the solid-state electrolyte material, characteristic diffraction peaks appear at positions where the values of the diffraction angle 2θ are 14.5-14.8º, 19.5-19.7º, and 22.5-22.8º, respectively, wherein the ratio of the peak intensity I1 of the characteristic diffraction peak at the position where the value of the diffraction angle 2θ is 14.5-14.8º to the peak intensity I2 of the characteristic diffraction peak at the position where the value of the diffraction angle 2θ is 22.5-22.8° satisfies: 1.5≤I2/I1≤3. Therefore, the ionic conductivity and structural stability of the solid electrolyte are improved.
Resumen de: WO2025205031A1
This battery pack comprises: a plurality of battery blocks in which block through-holes passing through a pair of block main surfaces are opened on each of the block main surfaces; a plurality of heat radiation plates in which plate opening holes are opened at positions facing the end surfaces of the block through-holes between adjacent battery blocks; a plurality of heat radiation tubes each of which is inserted into each of the block through-holes and in which a tube through-hole is formed; and a connection shaft that is inserted into the series of tube through-holes while the heat radiation tubes are arranged in coaxial orientations on front and rear surfaces of the plurality of heat radiation plates so that each of the tube through-holes in the front and rear surfaces communicate via the plate opening holes, the connection shaft connecting the plurality of battery blocks via the series of heat radiation tubes while the heat radiation tubes and the heat radiation plates are thermally coupled.
Resumen de: WO2025205257A1
A secondary battery negative electrode (12) is characterized by: comprising a long negative electrode core (30), and a negative electrode mixture layer (32) disposed on the negative electrode core (30); including a first end region (12a) on one end side in the longitudinal direction of the negative electrode mixture layer (32), and a second end region (12b) on the other end side in the longitudinal direction of the negative electrode mixture layer (32); the first end region (12a) having a negative electrode plate charge swelling rate smaller than that of the second end region (12b); and the ratio (E1 / E2) of a negative electrode plate charge swelling rate (E1) of the first end region (12a) to a negative electrode plate charge swelling rate (E2) of the second end region (12b) being 0.80 or less.
Resumen de: WO2025200220A1
Provided is a current collector stamping and welding production line, comprising: a stamping device (9), a first feeding device (2), a second feeding device (3), a welding device (1) and a sorting device (5); the stamping device (9) is used for blanking current collectors, feeding the current collectors onto a current collector supporting assembly (7), and sorting the current collectors; the first feeding device (2) is used for feeding sorted qualified current collectors to the welding device (1); the second feeding device (3) is used for feeding battery cells to the welding device (1); the welding device (1) is used for welding the current collectors to the top surfaces of the battery cells; the sorting device (5) is used for sorting the welded battery cells, so as to remove unqualified products. The present application forms and feeds the current collectors, separates same from the current collector supporting assembly (7), welds same to battery cell tops, tests the quality of the welded battery cells, implements compact arrangement of the devices, and involves short material transfer paths, thus improving battery cell production efficiency.
Resumen de: WO2025200373A1
A cover plate assembly of a battery cell, a battery cell, a battery assembly, and an electric device. The cover plate assembly (2000) of the battery cell (1000) comprises a cover plate body (210) and at least one explosion-proof valve (700), wherein the outer peripheral wall of the cover plate body (210) is adapted to be connected to a shell (300) of the battery cell (1000); and the at least one explosion-proof valve (700) is arranged on the cover plate body (210), and the minimum spacing between the at least one explosion-proof valve (700) and the outer peripheral wall of the cover plate body (210) ranges from 0.5 mm to 3.05 mm.
Resumen de: WO2025205673A1
A negative electrode active material comprising a graphite powder (A) and a Si/C powder that includes Si-C composite particles including silicon and a carbon material, wherein the value of DA/DSiC is 3.20 or less, where DA and DSiC are the respective median diameters D50 in a volume-frequency particle size distribution of the graphite powder (A) and the Si/C powder based on a laser diffraction scattering method.
Resumen de: WO2025200218A1
Provided in the present application are a battery case, a battery and an electrical device. The battery case is used for accommodating a battery. The battery comprises a plurality of battery cells and a connector for electrically connecting the battery cells. The battery case comprises a plurality of side beams which are connected end to end and enclose to form an accommodating cavity. At least one side beam has a recessed portion formed on the side surface facing the accommodating cavity by being recessed away from the side of the accommodating cavity. Thus, when the plurality of battery cells are electrically connected by means of the connector, the connector can at least partially pass through the inside of the recessed portion, such that, by means of the recessed portion, a rate of space utilization in the battery case is improved, the arrangement of the connector is achieved, and the impact of an increase in the size of the side beams on the internal structure of the battery is thereby reduced, improving the battery performance.
Resumen de: WO2025203816A1
The present invention is for stably manufacturing a joined body that constitutes a part of a battery using Na for a positive electrode and/or a negative electrode and that has excellent durability and corrosion resistance. Provided is a manufacturing method for a joined body, the method including solid-phase bonding of a ceramic component for insulating between the positive electrode and the negative electrode of the battery and a metal component on the positive-electrode side or the negative-electrode side via an Al-Si alloy-based brazing material. The solid-phase bonding includes: a step for heating, without pressurizing, a laminated part that includes the ceramic component, the Al-Si alloy-based brazing material, and a joined part of the metal component in this order, under a predetermined high vacuum atmosphere, such that the temperature of the Al-Si alloy-based brazing material rises to a prescribed holding temperature range; a step for applying a high pressure to the laminated part for a prescribed time in the lamination direction while keeping the temperature of the Al-Si alloy-based brazing material in the holding temperature range; and a step for cooling the laminated part such that the temperature of the Al-Si alloy-based brazing material falls within a prescribed time from the holding temperature range to the room temperature after the pressurization to the laminated part is stopped.
Resumen de: WO2025200484A1
A battery, an electrical system, and an energy storage system. The battery comprises: an electrolyte, the electrolyte comprising lithium hexafluorophosphate and lithium bisfluorosulfonyl imide, and the mass ratio in the electrolyte of lithium hexafluorophosphate to lithium bisfluorosulfonyl imide being γ; and a positive electrode plate, the positive electrode plate being at least partially immersed in the electrolyte, and the positive electrode plate comprising a positive electrode current collector and a positive electrode active layer. The positive electrode active layer is disposed on a surface of the positive electrode current collector, and the positive electrode active layer comprises a positive electrode active material and a carbon material, the mass fraction of the carbon material in the positive electrode active layer being B. The battery satisfies the relational expression: 1.31 wt% ≤ γB ≤ 10.74 wt%. The present battery has high dynamic performance and safety performance.
Resumen de: WO2025201079A1
Disclosed in the present application are a secondary battery and an electronic device. The secondary battery comprises an electrode assembly, a pouch and an insulating adhesive, wherein the pouch comprises a main body portion and a first side sealed edge. The main body portion accommodates the electrode assembly, and comprises a first side wall and a second side wall, which are arranged in the direction of thickness of the secondary battery. The first side sealed edge comprises a first connection portion and a second connection portion, which are arranged in sequence, wherein the first connection portion is connected to the main body portion; the second connection portion is bent towards the main body portion relative to the first connection portion; and an included angle θ is formed between the first connection portion and the first side wall, and meets 0°＜θ＜90°. The thickness of the main body portion is smaller than the width of the first connection portion; and the insulating adhesive covers the end of the second connection portion that faces the main body portion, and the insulating adhesive bonds the first connection portion to the second connection portion, and also bonds the second connection portion to the main body portion. The secondary battery of the present application is conductive to improving energy density, and is conductive to reducing the risk of deformation of the first side sealed edge while the end of the second connection portion is sealed.
Resumen de: WO2025200392A1
Provided in the present application are a terminal post assembly of a battery cell, a battery cell, a battery assembly, and an electric device. The terminal post assembly of a battery cell comprises a terminal post, wherein an electrolyte injection channel is provided in the terminal post and has an electrolyte outlet; the terminal post comprises a protruding portion, which is arranged around the electrolyte outlet; and a blocking channel that communicates with the electrolyte injection channel is formed in the protruding portion. In the terminal post assembly of a battery cell in the embodiments of the present application, by means of providing the protruding portion that surrounds the electrolyte outlet and forming in the protruding portion the blocking channel that communicates with the electrolyte injection channel, an electrolyte in the battery cell can be prevented, to a certain extent, from flowing back to the electrolyte injection channel through the electrolyte outlet, thereby ensuring the electrolyte injection performance of the terminal post assembly, and thus improving the working performance of the battery cell.
Resumen de: WO2025203708A1
This battery pack is provided with: a first battery module that, in a side surface, has a first port through which a heat transfer medium passes; a second battery module that, in a side surface that faces the side surface having the first port in the first battery module, has a second port through which the heat transfer medium passes; a pack case that accommodates the first battery module and the second battery module; a connector that has a third port that is connected to the first port, a fourth port that is connected to the second port, a fifth port, and an internal channel that is formed in the interior of the connector and mutually communicates between the third port, the fourth port, and the fifth port; and a hose that is connected to an inner surface of the pack case and the fifth port of the connector.
Resumen de: WO2025205026A1
The present invention relates to a battery mixture containing an oxime, a vinylidene fluoride polymer, and a solid electrolyte. The present invention also relates to a method for adjusting the viscosity of a battery mixture, the method comprising: a step for preparing a composition containing a vinylidene fluoride polymer, a solid electrolyte, and a nonaqueous solvent; and a step for adding an oxime to the composition. The present invention also relates to a method for manufacturing a battery mixture, the method comprising: a step for preparing an oxime, a vinylidene fluoride polymer, a solid electrolyte, and a nonaqueous solvent; and a step for mixing the oxime, the vinylidene fluoride polymer, the solid electrolyte, and the nonaqueous solvent.
Resumen de: WO2025203707A1
A battery module production method according to the present invention comprises: adhering, with an adhesive, a first component and a second component included in a battery module together; and adjusting the temperature of the adhesive.
Resumen de: US2025303922A1
To restrain performance deterioration of a secondary battery caused by peeling-off of a negative electrode active material, a control apparatus for a secondary battery includes a state of charge (SOC) sensor and a controller. The controller determines whether or not, for at least one of a plurality of battery modules, an SOC is not less than a predetermined first reference value, and when the SOC is not less than the first reference value, performs a first control of connecting the plurality of battery modules one by one to a motor and causing the plurality of battery modules to discharge one by one until the SOC of each battery module has decreased to the first reference value.
Resumen de: US2025303842A1
A vehicle includes a first heat exchange plate having a first refrigerant layer and a first coolant layer, and a second heat exchange plate having a second refrigerant layer and a second coolant layer. The first and second exchange plates are respectively capable of exchanging heat with first and second battery packs. When a first temperature of the first battery pack and the second battery pack is lower than a first threshold temperature, a vehicle control device causes a refrigerant to circulate through the first refrigerant layer at a first flow rate, and causes the refrigerant to circulate through the second refrigerant layer at a second flow rate. When a third temperature of the first battery pack is higher than a second threshold temperature, the vehicle control device charges the first battery pack and causes the coolant to circulate through the first and second coolant layers in this order.
Resumen de: US2025303813A1
A battery chiller for a vehicle includes a housing having a first inlet, a second inlet opposing the first inlet, a first outlet having a toroid structure surrounding the second inlet, and a second outlet having a toroid structure surrounding the first inlet. A lattice is disposed within the housing defining a first plurality of channels and a second plurality of channels. The lattice defines a first inlet duct in fluid communication with the first inlet and the first channels, and a second inlet duct in fluid communication with the second inlet and the second channels. A first flow path is defined from the first inlet, through the first inlet duct, through the first plurality of channels and to the first outlet, and a second flow path is defined from the second inlet, through the second inlet duct, through the second plurality of channels and to the second outlet.
Resumen de: US2025303919A1
A battery control system for an electric vehicle includes a plurality of battery packs each including an authorized battery pack having authority to output electric power to drive an electric motor to generate drive power for the electric vehicle, and an unauthorized battery pack not having the authority. A plurality of controllers of the plurality of battery packs are configured or programmed to mutually transmit/receive internal information on states of the respective battery packs. At least one of the plurality of controllers is configured or programmed to change the authorized battery pack to another battery pack among the plurality of battery packs based on the internal information.
Nº publicación: US2025303489A1 02/10/2025
Solicitante:
HONDA MOTOR CO LTD [JP]
HONDA MOTOR CO., LTD
Resumen de: US2025303489A1
The busbar clamping apparatus includes a base member, a moving device, a first actuation part, a second actuation part, a drive device, and a control device. The first actuation part is mounted to the base member and arranged closer to the X+ side than the busbars that should be clamped. The second actuation part is mounted so as to be movable in the X direction relative to the base member and arranged closer to the X− side than the busbars that should be clamped. The control device causes the moving device to move the base member toward the X− side to move the first actuation part toward the X− side, and then causes the drive device to move the second actuation part toward the X+ side. This allows the first actuation part and the second actuation part to clamp the busbars in the X direction.
BOPI
Sede Electrónica
