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1563
resultados
Última actualización
19/12/2025 [07:14:00]
Resultados 450 a 475 de 1563
Resumen de: WO2025251429A1
The present application relates to a packaging device and a packaging method. The packaging device comprises: a conveying mechanism, which is used for driving a first film material to move in a prearranged direction; a first film-laying mechanism, which is arranged on a moving path of the first film material and is used for forming on the first film material a plurality of accommodating positions that are arranged at intervals in the prearranged direction; and a second film-laying mechanism, which is used for laying a second film material onto an electrode assembly at each of the accommodating positions. In the present application, during the movement of the first film material, the first film-laying mechanism successively forms on the first film material in the prearranged direction the plurality of accommodating positions that are arranged at intervals, and then the second film-laying mechanism lays the second film material onto the electrode assembly at each of the accommodating positions, so that the first film material and the second film material jointly coat the electrode assembly. Thus, during the constant-speed movement of the first film material, the first film-laying mechanism can synchronously implement continuous shell punching and form the plurality of accommodating positions, thereby allowing for continuous production in electrode assembly packaging processes and improving production efficiency.
Resumen de: WO2025251427A1
An electrode sheet and a preparation method therefor, and a lithium-ion battery. The electrode sheet comprises a first electrode sheet, which comprises a first current collector and a first active material coating layer coated on one surface of the first current collector, wherein the first active material coating layer comprises a first active substance, a first binder and a first conductive agent. The mass content of the first conductive agent is D1, the mass content of the first binder is P1, and the total mass of the first active material coating layer is CW1; the electrode efficiency of the first electrode sheet is Q1; and Q1, CW1, D1 and P1 satisfy the relational expression: Q1=CW1*(1-D1-P1), and 1≤P1/D1≤8. By reducing the content of a conductive agent, the source of lithium ions is limited, thereby reducing the precipitation ability of lithium ions. Moreover, the content of a binder is increased so as to improve the bonding capability between an electrode sheet and a separator, which reduces lithium precipitation of the electrode sheet. In addition, the warping phenomenon of a single-sided sheet is reduced by controlling the mass of the active material coating.
Resumen de: WO2025251426A1
A roller-pressing pressure control method, apparatus and system. The method comprises: when an edge region of a cathode sheet is located at a roller-pressing position point, which is on an anode strip and is for an upper roller, reducing the roller-pressing pressure of the upper roller for the anode strip, such that the roller-pressing pressure of the upper roller for the anode strip is less than an initial pressure value; and when a non-edge region of the cathode sheet is located at the roller-pressing position point, which is on the anode strip and is for the upper roller, maintaining the roller-pressing pressure of the upper roller for the anode strip at the initial pressure value, wherein the non-edge region of the cathode sheet is the region of the cathode sheet other than the edge region.
Resumen de: US2025379328A1
A battery pack case of the present disclosure includes a base plate forming a surface of the battery pack case and having a through-hole formed to communicate an internal space of the battery pack case with an outside, an external plate spaced apart from an outer surface of the base plate and configured to block the through-hole from being exposed to the outside and to define a separation space between the base plate and the external plate, and a venting valve provided on the external plate to selectively discharge a fluid from the separation space.
Resumen de: US2025379330A1
Discussed is a battery pack including a battery cell stack having a plurality of battery cells stacked in a first direction, a barrier layer disposed on the battery cell stack, the barrier layer having an inner surface facing the battery cell stack, a first refractory part positioned on an outer surface of the barrier layer that is opposite to the inner surface of the barrier layer, and a venting part that extends through the first refractory part. The barrier layer is configured to be fractured or melted from pressure or heat generated in the battery cell stack to open the venting part to allow at least one of heat, gas and flames to pass from the battery cell stack through the venting part. The first refractory part is at the barrier layer.
Resumen de: US2025379327A1
The present disclosure provides a battery pack, etc. that can ensure excellent safety when a thermal event occurs. A battery pack according to one aspect of the present disclosure may include a plurality of battery cells each having an electrode lead; a cell cover configured to at least partially surround at least some of the plurality of battery cells; and a busbar frame assembly configured to be electrically connected to the electrode lead and coupled to at least one side of a cell cover, thereby blocking flame discharge in a particular direction.
Resumen de: US2025379325A1
A venting cover for a battery module, the venting cover configured to be coupled to one side surface of the battery module and cover the battery module. The venting cover includes venting channels. Each venting channel includes a channel shape extending in a longitudinal direction, an inflow hole configured to be directed toward a battery cell embedded in the battery module, a discharge hole located at an end of the each venting channel, each venting channel being configured such that a venting material vented from the battery cell is introduced into the inflow holes, flows in the longitudinal direction, and is discharged through the discharge holes, and a support channel located between adjacent venting channels of the plurality of venting channels, each support channel extending in the longitudinal direction, and having a closed cross-section, each support channel being configured to support the venting channels.
Resumen de: US2025379326A1
Thermal suppression containers are provided for use within traction battery packs. An exemplary thermal suppression container may include an outer pouch and a thermal suppression agent releasably contained within the outer pouch. The thermal suppression container may be configured to release the thermal suppression agent when a temperature near the outer pouch exceeds a predefined temperature threshold. The thermal suppression agent may capture or trap particles associated with battery vent byproducts, thereby managing or even preventing the transfer of thermal energy to nearby structures. The outer pouch of the thermal suppression container may include one or more flag seals that are configured to position the thermal suppression container relative to surrounding structures.
Resumen de: US2025379244A1
A thermal management control apparatus for a fuel cell electric vehicle includes: a stack cooling line configured to cool a fuel cell stack of the fuel cell electric vehicle; a battery cooling line configured to cool a battery of the fuel cell electric vehicle; a valve configured to control an inflow of the stack coolant; and a control apparatus configured to diagnose whether a component of the valve or the battery cooling line has failed based on the battery having overheated, and configured to cool the battery based on a failure of the valve or a component failure of the battery cooling line having occurred.
Resumen de: US2025379312A1
A battery and a vehicle. The battery comprises: a battery box and at least one battery cell. The battery box comprises a box body and a top cover, the top cover is arranged on the top of the box body, and an accommodation cavity is defined between the top cover and the box body. All the battery cells are arranged in the accommodation cavity, and the upper part of at least some of the battery cells is fixedly connected to the top cover.
Resumen de: US2025379264A1
A method is disclosed for manufacturing an electrochemical cell including an anode, an electrolyte, and a cathode including cations that move from the cathode to the anode during charging. The method comprises: (a) obtaining a measurement of an electrochemical feature at a selected time in a formation charging phase for creating the electrochemical cell from a cell structure, wherein the electrochemical feature is other than capacity, resistance, and voltage decay; and (b) maintaining or adjusting, based on the measurement of the electrochemical feature, at least one process parameter of a manufacturing process selected from: a production process for an anode of a later-produced electrochemical cell, a production process for a cathode of the later-produced electrochemical cell, an assembly process for a cell structure of the later-produced electrochemical cell, a filling process for an electrolyte of the later-produced electrochemical cell, and a formation charging process of the later-produced electrochemical cell.
Resumen de: US2025379231A1
A negative electrode active material includes a carbon-based material, where particle surface of the carbon-based material includes an alkali metal element, and the alkali metal element includes element sodium and/or element potassium. The surface of carbon-based material such as a graphite material is treated to obtain an organic substance layer similar to an SEI film on the particle surface, which can effectively improve the quality of the SEI film, thereby improving the initial coulombic efficiency and cycling performance of the secondary battery.
Resumen de: US2025379232A1
A secondary battery and an electric apparatus including the secondary battery. The secondary battery includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector, where the negative electrode film layer includes an additive capable of undergoing a nucleophilic reaction with a cyclic carbonate compound.
Resumen de: WO2025251278A1
The present application relates to a battery cell, an electrode assembly, a battery and an electrical apparatus. The battery cell comprises a casing, an electrode assembly and an end cover assembly; the electrode assembly comprises a first electrode sheet and a second electrode sheet which have opposite polarities, and a separator; the first electrode sheet, the second electrode sheet and the separator are wound in a winding direction to form a winding structure, the winding structure comprising a straight region and a bent region; the first electrode sheet comprises a first current collector and a first active material layer which are connected to each other, the first current collector comprising a base portion and a thickened portion; the thickened portion is located within the bent region and extends toward the straight region for a predetermined length, and the base portion is located within the straight region and connected to the thickened portion, the thickened portion having a thickness greater than the thickness of the base portion and being arranged protruding from the base portion, and the first active material layer covering the base portion and the thickened portion. In the electrode assembly, the battery cell, the battery and the electrical apparatus provided in the present application, the electrode assembly can reduce the risk of short-circuit in the battery cell, thereby ensuring the overall reliability of the battery cell.
Resumen de: WO2025251336A1
A battery (100) and an electric device. The battery (100) comprises a plurality of battery cells (10) and a busbar member (20); the busbar member (20) comprises a first connection portion (21), a second connection portion (22) and a plurality of buffer portions (23); the plurality of buffer portions (23) are at least partially spaced apart in a first direction and are located between the first connection portion (21) and the second connection portion (22) in a second direction; the first connection portion (21) and the second connection portion (22) are respectively connected to different battery cells (10); the second direction is parallel to the arrangement direction of the plurality of battery cells (10); the first direction intersects the second direction. The buffer portions (23) can be stretched or compressed under the action of a pulling force, to absorb part of the external force and achieve a stress relief function, reducing the risks of structural failure or cracking in the busbar member (20) and the battery cells (10), enhancing the operational reliability of the battery (100).
Resumen de: US2025376375A1
A process for producing a sulfamyl fluoride composition includes providing a solution comprising fluorosulfonic acid, urea and a solvent; reacting the solution at a reaction temperature from 80° C. to about 170° C. to produce a mixture including sulfamyl fluoride, bis(fluorosulfonyl) imide, ammonium fluorosulfate and the solvent; separating the ammonium fluorosulfate from the mixture; and separating the mixture into a sulfamyl fluoride composition and a recycle composition, the sulfamyl fluoride composition including a higher concentration of sulfamyl fluoride and bis(fluorosulfonyl) imide than the recycle composition. A mole ratio of the fluorosulfonic acid to the urea in the solution is from about 1.80:1 to about 2.00:1.
Resumen de: US2025376374A1
A method for producing lithium hydroxide includes: reacting lithium carbonate with calcium hydroxide in a liquid to obtain a solution containing lithium hydroxide; subjecting the solution to solid-liquid separation into a liquid component containing the lithium hydroxide and a solid component comprising lithium derived from the lithium carbonate; and recovering the lithium hydroxide from the liquid component.
Resumen de: US2025379324A1
A battery, an electrical device, and an energy storage device. The battery includes: a battery cell, a first wall of the battery cell being provided with a pressure relief mechanism; an attachment component, a first surface of the attachment component being attached to the first wall by an adhesive; an isolation component connected to the attachment component and configured to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism; and a protective component connected to a surface of the isolation component facing away from the pressure relief mechanism to protect the isolation component; where the attachment component is provided with a first through hole corresponding to the position of the pressure relief mechanism.
Resumen de: US2025379321A1
A prismatic power storage device includes a case having a case body and a rectangular plate-shaped lid, an electrode body housed in the case, a positive terminal member extending out through a positive-electrode insert hole provided in the lid, and a negative terminal member extending out through a negative-electrode insert hole. The lid includes a first safety valve provided in a center of the lid and to be opened at a first operating pressure, a second safety valve provided on one side relative to a central region and to be operated at a second operating pressure higher than the first operating pressure, and a third safety valve provided on the other side relative to the central region and to be operated at a third operating pressure higher than the first operating pressure.
Resumen de: US2025379323A1
A cover assembly for a battery module including a cover frame configured to be coupled to one opened side of a battery module casing and to close the opened side of the battery module casing, the cover frame including a plurality of hollow portions extending in a longitudinal direction, and a plurality of venting holes at locations that overlap the plurality of hollow portions, the plurality of venting holes being configured to penetrate the cover frame in a direction toward an inside of the battery module casing, and at least one venting part inserted into a first hollow portion and configured to close a respective venting hole of the plurality of venting holes, each at least one venting part having a portion that corresponds to the respective venting hole, each at least one venting part being configured to be opened when gas or flame is generated in the battery module.
Resumen de: US2025379322A1
A power storage device includes a metal case with a safety valve part. The safety valve part includes a hole surrounding edge portion that forms a valve hole penetrating through the case and a valve member hermetically sealing this valve hole. The valve member includes a plate circumferential edge portion and a ring-shaped resin valve member that is made of thermoplastic resin and hermetically seals a space between the plate circumferential edge portion of the metal seal plate and the hole surrounding edge portion of the case. The safety valve part is a first safety valve part of a temperature opening type to be opened by softening or melting of the resin valve member by heat.
Resumen de: US2025379320A1
Provided are a battery module, and a battery pack and a vehicle including the same. The battery module includes a plurality of pouch-type battery cells, a module case in which the plurality of pouch-type battery cells are accommodated and a venting hole is formed, and a cell cover at least partially surrounding and supporting at least some of the plurality of pouch-type battery cells, in an inner space of the module case, wherein at least a portion of the cell cover is inserted into the venting hole.
Resumen de: US2025379233A1
The present invention relates to a binder composition for a sulfur cathode of a lithium-sulfur secondary battery, comprising at least one selected from a polar monomer, an ionic monomer, a polar polymer, and an ionic polymer, and comprising a counterion that forms a pair with an ion included in the ionic monomer and the ionic polymer; and to a sulfur cathode and a lithium-sulfur secondary battery comprising the same. Accordingly, the shuttle phenomenon of lithium polysulfide can be prevented, and the formation of a three-dimensional lithium sulfide structure on the surface of the sulfur cathode can be induced, thereby preventing the loss of active material and suppressing passivation of the sulfur cathode surface, ultimately enabling the realization of a high energy density lithium-sulfur secondary battery.
Resumen de: US2025379258A1
A secondary battery according to the present disclosure includes an electrode body with a zigzag structure, and an electrolyte solution. The electrode body includes a first outer surface and a second outer surface. The electrolyte solution includes a surplus solution that is disposed at least between the first outer surface and a case. The separator includes a plurality of first protrusion parts including a first bent part on the first outer surface, and a plurality of second protrusion parts including a second bent part on the second outer surface. A plurality of penetration holes are provided at the first protrusion part. A protrusion length of the second protrusion part is larger than a protrusion length of the first protrusion part.
Nº publicación: US2025379230A1 11/12/2025
Solicitante:
ENEVATE CORP [US]
Enevate Corporation
Resumen de: US2025379230A1
Systems and methods utilizing aqueous-based polymer binders for silicon-based anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from a silicon carbon composite or SiOx-based or Si-Carbon-SiOx-based powder and a water soluble polymer and may comprise one or more additional materials. The anode may be in a lithium ion battery.
BOPI
Sede Electrónica
