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1797
resultados
Última actualización
13/10/2025 [15:43:00]
Resultados 875 a 900 de 1797
Resumen de: WO2025205856A1
An objective of the present invention is to provide a binder composition for non-aqueous secondary battery electrodes that makes it possible to reduce the internal resistance of a non-aqueous secondary battery. The present invention is a binder composition for non-aqueous secondary battery electrodes that contains a particulate polymer, wherein, when a least square method is used to waveform-separate a free induction decay curve of transverse relaxation of 1H measured by a pulse NMR solid echo method into two curves derived from two components, component A and component B, in ascending order of a transverse relaxation time T2, the component fraction αA of the A component of the particulate polymer is 1.0%-10.0%.
Resumen de: US2025305979A1
To accurately evaluate a coating state of a solid electrolyte in a positive electrode active material in a positive electrode slurry for an all-solid-state battery. A device for evaluating a positive electrode slurry for an all-solid-state battery, including a flow path through which the positive electrode slurry flows and a measurement unit configured to measure an AC impedance of the positive electrode slurry, wherein the measurement unit includes a first channel unit configured to measure the AC impedance at a first predetermined frequency and a second channel unit configured to measure the AC impedance at a second predetermined frequency, and the measurement unit includes an evaluation unit configured to evaluate the quality of the coating state of a solid electrolyte in a positive electrode active material based on an imaginary axis parameter of the AC impedance and a real axis parameter of the AC impedance measured by the first channel unit and the second channel unit.
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.
Resumen de: US2025305618A1
This disclosure describes inspection tools and methods to inspect and maintain the interior of vent gas manifold channels. A magnetically-coupled probe, (e.g., a ball, cylinder, rectangular cube, or disc), is inserted inside the vent gas manifold channel. A magnetically-coupled head then magnetically drags the magnetically-coupled probe through the channels of the vent gas manifold. The inspection tool uses a sensor to monitor the position of the magnetically-coupled probe inside of the channel. If an obstruction is encountered, the sensor monitors local changes in one of more physical or electrical properties of the inspection tool and alerts an operator. The magnetically-coupled probe may be a steel bucket with sharp leading edges that detaches and scoops up the obstruction. A programmed robot manipulator arm or human operator may move the head across the surface of the vent gas manifold parallel to the channel.
Resumen de: US2025303422A1
A system for carrying out size reduction of battery materials under immersion conditions can include a housing containing an immersion liquid and at least a first comminuting device submerged in the immersion liquid and configured to cause a size reduction of the battery materials to form first reduced-size battery materials, and at least a first outlet through which a size-reduced feed stream comprising a black mass solid material and an electrolyte materials entrained within the immersion liquid can exit the comminuting apparatus. At least a first separator may be configured to separate the size-reduced feed stream into at least a first stream that comprises the black mass solid material liberated from the battery materials and a retained portion of the immersion liquid having entrained electrolyte materials, and a second stream comprising a second portion of the immersion liquid having entrained electrolyte materials.
Resumen de: WO2025205658A1
This sulfide solid electrolyte contains a lithium (Li) element, a phosphorus (P) element, a sulfur (S) element, and a halogen (X) element, and has peaks at 2θ = 24.9° ± 0.3°, 29.2° ± 0.3°, and 30.6° ± 0.4° in an X-ray diffraction pattern. It is preferable that the half-value width of each peak observed at 2θ = 24.9° ± 0.3°, 29.2° ± 0.3°, and 30.6° ± 0.4° in an X-ray diffraction pattern is 0.1° or greater. It is also preferable that the halogen (X) element contains at least an iodine (I) element.
Resumen de: WO2025199893A1
The present application relates to the technical field of energy storage, and provides an energy storage device. The energy storage device comprises a battery and a protection system acting on the battery; the protection system comprises a conductive member, a detection module and a control module; the conductive member is fixedly and electrically connected to a pole of the battery; the conductive member is used for fixing the pole, so that the battery is located at an initial position; the conductive member is electrically connected to a power supply device or an electric device; the detection module is used for detecting parameter information during charging and discharging of the battery; the control module is used for controlling electrical separation between the conductive member and the pole when the parameter information is abnormal, and controlling the conductive member to loosen the pole, so that the battery leaves the initial position. The energy storage device can effectively improve the safety during the charging and discharging of the battery.
Resumen de: WO2025201114A1
Provided are a battery cell, a battery cell manufacturing method, an electrode sheet, and an electrode sheet manufacturing method. The battery cell comprises an electrode assembly, wherein the electrode assembly comprises a plurality of first electrode sheets and a plurality of second electrode sheets, each first electrode sheet is provided with a first empty foil region, the first empty foil region is located at a first corner of the first electrode sheet, each second electrode sheet is provided with a first notch, and observed in a first direction, the first empty foil region at least partially overlaps with the first notch; and a plurality of first empty foil regions are stacked and folded in the first direction, and in the first direction, the maximum projection area of the plurality of first empty foil regions is S1, the overlapping portion between a region among the plurality of first empty foil regions that has the maximum projection area and a region among the plurality of first empty foil regions that has the minimum projection area is a first overlapping region, the area of the first overlapping region is S2, and 55%≤S2/S1≤100%. By means of the battery cell of the structure, the current-carrying capacity of a plurality of first empty foil regions can be improved while the influence on the energy density of the battery cell is relatively small.
Resumen de: WO2025206359A1
Provided is an all-solid-state battery capable of suppressing abnormal deposition of lithium metal due to localization of battery reaction or a reduction in the capacity of the all-solid-state battery by suppressing stress concentration to an end in the lamination direction of an electrode laminate against expansion and contraction of a negative electrode due to charging and discharging of the all-solid-state battery while suppressing damage to a positive electrode end against application of compressive stress due to a compression input. The all-solid-state battery comprises an electrode body in which a positive electrode current collector, a positive electrode layer, a solid electrolyte layer, a negative electrode layer, and a negative electrode current collector are laminated in this order, and is provided with an electrode laminate in which a plurality of electrode bodies are laminated. The all-solid-state battery comprises a laminate film including the electrode laminate, wherein a resin coat is disposed in at least a portion corresponding to a sealing part of the laminate film.
Resumen de: WO2025204936A1
The present disclosure provides a quasi-solid electrolyte composition comprising: an electrolytic solution that contains an alkali metal salt and an organic solvent; and a porous material. In a quasi-solid electrolyte, the content of the alkali metal salt is 11 mol% or more based on the sum of substance amounts of the alkali metal salt and the organic solvent. The pore size of the porous material is 7-13 Å. The content of the porous material is 20-33 mass% with respect to the total amount of the quasi-solid electrolyte composition.
Resumen de: WO2025205858A1
An objective of the present invention is to provide a binder composition for non-aqueous secondary battery electrodes that is capable of imparting excellent peel strength to non-aqueous secondary battery electrodes. The present invention is a binder composition for non-aqueous secondary battery electrodes that contains a particulate polymer, wherein at least one combination of a transverse relaxation time T2A, measured using CPMG pulse NMR at one point in the range of pH 3.0 to 4.5, and a transverse relaxation time T2B, measured using CPMG pulse NMR at one point in the range of pH 6.5 to 8.0, of the particulate polymer satisfies the relationship in the following formula (1): T2B/T2A≥1.5.
Resumen de: WO2025200343A1
Disclosed is an electric energy device, comprising a distribution box and/or a battery pack, wherein the distribution box comprises a battery management system. Further disclosed are a method for correcting the state of charge of a battery, and a non-volatile readable storage medium. The method for correcting the state of charge of a battery comprises: on the basis of a preset interval to which a real-time power capacity characteristic parameter of a battery belongs, determining a target tolerance range of the state of charge of the battery, wherein target tolerance ranges corresponding to any adjacent preset intervals are different; and on the basis of the target tolerance range, correcting the currently detected state of charge of the battery.
Resumen de: WO2025205393A1
A coated active material 100 according to the present disclosure comprises: a positive electrode active material 110; and a coating layer 120 that coats at least a portion of the surface of the positive electrode active material 110. The coating layer 120 has a first layer 111 containing a first solid electrolyte, and a second layer 112 containing a second solid electrolyte and a first conductive assistant. The first layer 111 is located between the second layer 112 and the positive electrode active material 110. The first solid electrolyte contains Li, Ti, M1, and F, where M1 is at least one selected from the group consisting of Ca, Mg, Al, Y, Zr, and Nb. The second solid electrolyte has a composition different from that of the first solid electrolyte.
Resumen de: US2025309414A1
A molded element for arranging on a temperature-controllable element, wherein the temperature-controllable element may preferably be an energy storage element, for example an electrochemical energy storage cell, wherein the molded element comprises: at least one receiving zone for receiving at least one section of the temperature-controllable element in the molded element and a molded element material having a density of at most 0.75 g/cm3, preferably at most 0.65 g/cm3, particularly preferably at most 0.55 g/cm3.
Resumen de: US2025309406A1
A battery pack is disclosed according to the present disclosure. The battery pack includes: a housing, a cover, a cell set and a bus bar. The housing includes a receiving cavity with an opening on a side of the housing. The cover is provided over the side of the housing with the opening to close the receiving cavity. The cell set is provided in the receiving cavity, and electrodes of the cell set face the cover. The bus bar is provided between the cell set and the cover, and a pressure relief space is reserved between the bus bar and the cover. The receiving cavity is filled with insulating cooling oil, and the electrodes of the cell set and the bus bar are submerged in the insulating cooling oil.
Resumen de: US2025309404A1
A power storage device includes a power storage module and a heat exchanger whose heat exchange object is the power storage module. The power storage module is joined to the heat exchanger with an adhesive. The heat exchanger exchanges heat with the heat exchange object using refrigerant flowing through a main flow path and a sub-flow path. The heat exchanger includes a base member and an outer wall. The outer wall is provided in the base member. The main flow path is formed inside the base member. The sub-flow path is formed of the base member and the outer wall. The outer wall deforms more easily than the base member and the power storage module.
Resumen de: US2025309412A1
A battery housing includes a bottom case and a top cover. The bottom case includes a main case and a reinforcing rib. The main case is provided with an accommodating cavity and an opening, the accommodating cavity being located at an inner side of the main case, and the opening being located on the outer surface of the main case and communicated with the accommodating cavity. The reinforcing rib is fixedly connected to a side wall surface of the accommodating cavity, is spaced apart from both the opening and the bottom wall surface of the accommodating cavity, and extends along the circumferential direction of the main case. The first sub-reinforcing portion of the reinforcing rib includes a step surface facing the opening, the second sub-reinforcing portion is located on a side of the first sub-reinforcing portion facing away from the step surface and fixedly connected to the first sub-reinforcing portion.
Resumen de: US2025309399A1
In a power storage device, a first heat transfer member is adjacent to a first cell on a second direction side opposite to a first direction side of the first cell. A second heat transfer member is adjacent to a second cell on a second direction side of the second cell. A heat insulating member is made of a material having a thermal conductivity lower than that of each of the first heat transfer member and the second heat transfer member. The heat insulating member is located on a first direction side of the battery cell group. A cooling portion is in contact with the first heat transfer member and the second heat transfer member. In a third direction, a thermal resistance of the first heat transfer member is lower than a thermal resistance of the second heat transfer member.
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).
Nº publicación: US2025309398A1 02/10/2025
Solicitante:
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Resumen de: US2025309398A1
A battery module, wherein: the battery module includes battery cells, a heat insulation member, and first heat dissipation members as heat dissipation members; the battery module includes, as the battery cells, at least a first battery cell and a second battery cell; the first heat dissipation members are disposed respectively adjacent to the battery cells; the heat insulation member is disposed between the first battery cell and the second battery cell; and a ratio of the thermal resistance of the heat insulation member to the thermal resistance of the heat dissipation member (the thermal resistance of the heat insulation member/the thermal resistance of the heat dissipation member) is 0.0102 or higher.
BOPI
Sede Electrónica
