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1719
resultados
Última actualización
07/06/2025 [07:24:00]
Resultados 600 a 625 de 1719
Resumen de: WO2025113502A1
The present application relates to the technical field of lithium battery materials and binders, and discloses a positive electrode edge coating protection hot-press adhesive, preparation therefor and a use thereof. The hot-press adhesive is obtained copolymerizing an acrylic monomer, an acrylate monomer, an oil-soluble monomer and a modified monomer in a solvent NMP, and the mass percentage content of each monomer is as follows: 5-12% of the acrylic monomer, 45-80% of the acrylate monomer, 10-40% of the oil-soluble monomer, and 1-10% of the modified monomer. The hot-press adhesive of the present application is an oil-based polymer binder, which is mainly applied to bonding for positive electrode sheet edge coating, and can achieve effective bonding between a positive electrode and a separator; the electrolyte resistance of the hot-press adhesive is significantly improved, and the problem of unintended mixing with positive electrode slurry is solved.
Resumen de: WO2025115534A1
Provided is an alkaline storage battery having excellent reliability. An alkaline storage battery according to the present disclosure includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution. The negative electrode includes a hydrogen absorbing alloy capable of electrochemically occluding and releasing hydrogen. The separator includes carbon fibers having hydrophobicity on the surface layer on the side that faces the negative electrode.
Resumen de: WO2025113373A1
A silicon negative electrode material, a preparation method therefor, and a use thereof, relating to the technical field of secondary batteries. The silicon negative electrode material comprises porous γ-phase lithium aluminate and a carbon coating layer; a carbon layer and a silicon material layer are sequentially deposited in pores of the porous γ-phase lithium aluminate; and the surface of the porous γ-phase lithium aluminate on which the carbon layer and the silicon material layer are deposited is coated with the carbon coating layer. The silicon negative electrode material can effectively prevent the silicon material from being in direct contact with an electrolyte, and suppresses the volume expansion of silicon during circulation from a material end, thereby effectively mitigating the volume change, and making the structure of the electrode material more stable, improving the electrochemical performance of the material.
Resumen de: WO2025115376A1
This power storage device comprises: a power storage module that has an electrode laminate and a sealing body which seals the electrode laminate; an exterior pack that contains the power storage module; and a cover member that is interposed between the exterior pack and a first side surface of the sealing body which extends in a first direction and a second direction. The sealing body has a liquid injection opening part which includes a plurality of frames that protrude in a third direction. As viewed from the third direction, the first side surface has a first portion region that is provided with the liquid injection opening part and a second portion region that sandwiches the first portion region in the second direction. The cover member has a first surface that faces the first portion region and a second surface that faces the second portion region. As viewed from the first direction, first surface is further recessed than the second surface.
Resumen de: WO2025112495A1
A thermal management system (100), comprising a coolant circulation system, a refrigerant circulation system, and a heat exchange assembly. The refrigerant circulation system comprises a refrigerant flow channel plate (140), wherein a refrigerant flow channel for being communicated with the heat exchange assembly is integrated in the refrigerant flow channel plate (140). The coolant circulation system comprises a first coolant flow channel plate and a second coolant flow channel plate, wherein a coolant flow channel for being communicated with the heat exchange assembly is integrated in each coolant flow channel plate, and the coolant flow channel in the first coolant flow channel plate and the coolant flow channel in the second coolant flow channel plate are communicated with each other. The second coolant flow channel plate, the first coolant flow channel plate, and the refrigerant flow channel plate (140) are sequentially stacked. By stacking the refrigerant flow channel plate (140) and the two coolant flow channel plates, the difficulty of installation and maintenance can be reduced. Additionally, the coolant flow channels are used for being communicated with components in the coolant circulation system, and by distributing the coolant flow channels on the two stacked coolant flow channel plates, the footprint of the coolant flow channel plates can be reduced, and the difficulty of layout of the coolant flow channels can be reduced.
Resumen de: WO2025112481A1
The present application relates to a negative electrode material and a battery. The negative electrode material comprises a silicon-based material, the silicon-based material containing oxygen elements and lithium elements. As measured by a laser particle size analyzer, the negative electrode material has a particle size D10 having a cumulative volume distribution of 10% and a particle size D90 having a cumulative volume distribution of 90%. The ratio of the mass percentage of the lithium elements to the mass percentage of the oxygen elements in particles having a particle size smaller than or equal to D10 in the negative electrode material is recorded as A1, and the ratio of the mass percentage of the lithium elements to the mass percentage of the oxygen elements in particles having a particle size greater than or equal to D90 in the negative electrode material is recorded as A2, where 0.6≤A1/A2<1. In the present application, different ratios of lithium content to oxygen content are set for the material having a smaller particle size and the material having a larger particle size, and the ratio of lithium content to oxygen content of the material having a smaller particle size is less than that of the material having a larger particle size, such that the negative material has improved storage properties, improved rate capability and cycling performance.
Resumen de: WO2025112365A1
A silicon-carbon negative electrode material and a preparation method therefor. The silicon-carbon negative electrode material comprises a carbon skeleton having a pore structure and a silicon-based material arranged in the pore structure, wherein within a region beginning at the surface of the silicon-carbon negative electrode material and ending at interior positions that are 10 nm away from the surface, the content of high-valence silicon is less than 25% relative to the total amount of low-valence silicon and high-valence silicon, the low-valence silicon being silicon with a valence of 0 to 2, and the high-valence silicon being silicon with a valence of 3 to 4. The silicon-carbon negative electrode material can improve the delithiation specific capacity and the initial coulombic efficiency of the silicon-carbon negative electrode material, and can enhance the specific discharge capacity and the initial coulombic efficiency of a secondary battery.
Resumen de: WO2025116427A1
A heater for igniting a battery cell for a thermal propagation test and a thermal propagation test method according to an embodiment of the present invention can prevent side rupture during ignition of a battery cell for a thermal propagation test, thereby preventing errors in the thermal propagation test.
Resumen de: WO2025116428A1
The present invention relates to a composite binder for a silicon electrode of a lithium secondary battery, wherein the composite binder comprises: a polymer composite including a polymer and a furan group bonded to the polymer; and a carbon material bearing a carbon-carbon double bond, and is formed by combining the polymer composite and the carbon material through a chemical reaction by heat.
Resumen de: WO2025116447A1
An isostatic pressurization method for an all-solid-state battery of the present disclosure comprises the steps of: (a) placing a lower jig having an internal space for accommodating an isostatic pressurization fluid and a pouch cell; (b) providing and fixing a ring-shaped first plate having an opening formed at the center inside the lower jig; (c) accommodating the pouch cell in the opening of the first plate while a cup portion faces upward, downward, or in both directions; (d) stacking a second plate having a shape corresponding to the first plate on the upper surface of the first plate to press and fix a sealing portion located on the outer circumference of the pouch cell with the second plate, while continuously keeping the cup portion of the pouch cell exposed outward; and (e) stacking and fixing a plate-shaped upper jig on the upper portion of the lower jig to seal same, and then injecting fluid in the internal space to perform isostatic pressurization.
Resumen de: WO2025116295A1
The present invention relates to a method for preparing ultra-high purity ethylene carbonate, the method comprising: a step of esterifying ethylene oxide and carbon dioxide in the presence of a catalyst to prepare ethylene carbonate; a DEG removal step of converting diethylene glycol (DEG), which is a by-product of the esterification reaction, into monoethylene glycol (MEG) by using pseudobohemite; and an impurity removal step of removing impurities including moisture and the MEG converted from DEG by distilling a product of the DEG removal step under reduced pressure.
Resumen de: WO2025117741A1
A method for making a tray assembly includes providing a first component and a second component. The second component has a lower portion and an upper portion spaced from the first component. A top surface of the lower portion is positioned below a top surface of the first component. A top surface of the upper portion is substantially coplanar with the top surface of the first component such that a gap is defined along the lower portion of the second component. The method also includes filling the gap with an adhesive, and compressing a pad toward the adhesive such that the adhesive becomes substantially coplanar with the top surface of the first component and the upper portion of the second component.
Resumen de: WO2025116476A1
An insert device according to an embodiment of the present invention is an insert device for inserting an electrode assembly into a battery can. The insert device comprises: a can holder that holds the battery can; a lower stopper that supports the electrode assembly from below and is configured to be able to move in a direction parallel to the central axis of the electrode assembly; a side stopper configured to move forward or backward, in a direction perpendicular to the central axis of the electrode assembly, from a side portion of the electrode assembly; a conveying member configured to convey the electrode assembly and the battery can; and a lower holder that supports, from below, the electrode assembly conveyed by the conveying member, and is configured to be able to move in a direction parallel to the central axis of the electrode assembly.
Resumen de: WO2025115838A1
This secondary battery testing method includes a charging step (step S102) for charging a secondary battery to a prescribed charging state by constant voltage charging or constant voltage/constant current charging, an aging step (step S106) for aging the secondary battery charged in the charging step, voltage measuring steps (step S104 and step S108) for measuring the voltage of the secondary battery before and after aging, and a sorting step (step S110) for sorting the secondary battery on the basis of the voltages of the secondary battery measured in the voltage measuring steps, the testing method being characterized in that the prescribed charging state is set in a state of charge (SOC) region in which the slope of the tangent to an SOC-OCV curve indicating a relationship between the state of charge and the open circuit voltage (OCV) of the secondary battery is greater than 0.02.
Resumen de: WO2025116462A1
A battery assembly, according to one embodiment of the present invention, is a battery assembly comprising a plurality of battery cell units, each including at least one battery cell and a cell cover that surrounds the lower surface and both side surfaces of the at least one battery cell, wherein the cell cover includes at least one cell cover venting hole in a bottom portion thereof corresponding to the bottom surface of the battery cell, electrode leads protrude from both end surfaces of the battery cell in the longitudinal direction, and a foam layer is disposed adjacent to at least one of the electrode leads of the at least one battery cell.
Resumen de: WO2025116497A1
Provided is a battery pack comprising: a plurality of cell assemblies each of which includes a cell stack comprising a plurality of battery cells stacked together and a cooling member covering at least one surface of the cell stack; and a pack housing in which the plurality of cell assemblies are accommodated, wherein the cooling member includes: a base plate arranged to be opposite to the bottom surface of the cell stack; at least one side plate arranged to be opposite to the cell stack in the stacking direction of the plurality of battery cells and coupled to the pack housing; and a flow path part provided across the base plate and the at least one side plate and configured to allow a refrigerant to flow therethrough.
Resumen de: WO2025116310A1
The present invention relates to a unit cell transfer apparatus and a stacking apparatus and, more specifically, to a unit cell transfer apparatus capable of transferring and stacking a unit cell in a stable manner, and to a secondary battery manufacturing apparatus comprising same. A unit cell transfer apparatus for a secondary battery, according to one embodiment of the present invention, may be provided, comprising: a plurality of suction modules for suctioning a unit cell; a circulation track along which the suction modules circulate; a pusher module for moving the suction modules downward with respect to the circulation track; and a controller for releasing the suction of the suction modules after the suction modules move downward, such that the unit cell is separated from the suction modules and stacked.
Resumen de: WO2025116710A1
The present invention relates to a cathode active material and a lithium secondary battery comprising same and, more specifically, to a cathode active material and a lithium secondary battery comprising same, the cathode active material comprising lithium and manganese-excess lithium manganese-based oxides that have an improved energy density per unit volume and thus have improved electrochemical properties.
Resumen de: WO2025117587A1
Methods and systems are provided for manufacturing and implementing liquid electrolytes for aluminum-based rechargeable batteries and other secondary batteries. The liquid electrolytes may be formed from electrolyte compositions that are selected for lower corrosiveness in certain environments. In some examples, an electrolyte composition may include a salt at least partially dissolved in a solvent, the salt including Al(TFSI)3, Al(FSI)3, or AlI3. In certain examples, the electrolyte composition is free of chlorine. In additional or alternative examples, the electrolyte composition may further include one or more additives, such as a halide or crown. In some examples, the salt may be formed via a neutralization reaction of a Lewis acid and a Lewis base.
Resumen de: WO2025116682A1
The present document relates to a battery system capable of utilizing independent computing power, and a utilization method thereof. To this end, the battery system comprises: a computing device which is assisted with seamless power from an energy storage system (ESS) and provides independent computing power; a controller for controlling the temperature of the ESS to be maintained in a prescribed temperature range; and a pipe for transferring heat generated in the computing device to the ESS under the control of the controller, wherein the computing device provides the operation of the ESS and the independent computing power.
Resumen de: WO2025116365A1
A battery enclosure according to one embodiment of the present invention comprises: an enclosure having an accommodation space therein; a battery rack fixed within the accommodation space inside the enclosure and including at least one battery; and a control panel electrically connected to the battery rack, wherein the accommodation space includes a power storage space in which the battery rack is located and a control space in which the control panel is located, the enclosure has a plurality of openings formed on different sides, and cables pass through the openings.
Resumen de: WO2025116364A1
Provided is a method for processing lithium metal of a negative electrode in an electrode assembly. The processing method includes: a supply step of separating a first raw material composed of lithium metal having a first protective layer bonded to one surface thereof and a second raw material composed of a second protective layer to supply the raw material so that the lithium metal is positioned between the first protective layer and the second protective layer; a cutting step of pressing the supplied raw materials using a cutter on the first and second protective layers to cut the lithium metal; and a recovery step of separating the first raw material and the second raw material after cutting to recover the raw material. The method for processing lithium metal according to an embodiment of the present invention is effective in processing lithium metal extending in the longitudinal direction applied as a negative electrode to a stack-folding type electrode assembly, and can produce processed lithium metal with high reliability.
Resumen de: WO2025116363A1
A battery enclosure according to an embodiment of the present invention includes: an enclosure having an accommodation space therein; a battery rack fixed in the accommodation space inside the enclosure and including at least one battery; and a control panel which provides an electrical connection between an electrical device located outside the enclosure and the battery rack, wherein the control panel is connected to the battery rack through a first cable, and the first cable extends from the control panel located at one side of the enclosure, toward the other side of the enclosure, within a first distribution space formed in the upper portion of the enclosure.
Resumen de: WO2025116322A1
The present invention relates to: a solid electrolyte for a lithium secondary battery; and a lithium secondary battery comprising same, the solid electrolyte comprising a covalent organic framework (COF) film solid electrolyte represented by chemical formula 1, having unit structures linked by a beta ketoenamine functional group, and comprising a lithium sulfonate functional group.
Nº publicación: WO2025116397A1 05/06/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
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Resumen de: WO2025116397A1
Disclosed is an all-solid-state lithium-ion secondary battery in which, by surface-treating a current collector included in a lithium-free anode with a lithiophilic material, the surface-treated material induces a uniform lithium plating reaction on the current collector even during rapid charging, thereby improving performance. The all-solid-state lithium-ion secondary battery comprises a cathode, a solid electrolyte layer, an anode current collector, and an anode active material layer disposed between the solid electrolyte layer and the anode current collector, wherein the anode current collector includes: a base material; and a lithiophilic layer positioned on the surface of the base material.
BOPI
Sede Electrónica
