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1316
resultados
Última actualización
02/11/2025 [07:11:00]
Resultados 175 a 200 de 1316
Resumen de: US2025337026A1
A battery cell thermal runaway simulation system that includes a protective chamber and an adjustment assembly positioned in the protective chamber that is configured to support a test object that will be exposed to a battery cell undergoing a thermal runaway event, wherein the adjustment assembly is movable to adjust a distance between the test object and the battery cell. The system also includes a first thermal monitoring device that is configured to generate a signal indicative of a temperature of gases emitted by the battery cell undergoing the thermal runaway event, a second thermal monitoring device that is configured to generate a signal indicative of a temperature of the test object when the test object is being exposed to the battery cell undergoing the thermal runaway event, and a heating device configured to heat the battery cell until the battery cell reaches a critical temperature and undergoes thermal runaway.
Resumen de: US2025337029A1
Provided is a structure of a battery module including: a battery cell including an electrode lead protruding and extending forward; a sensing block arranged in front of the battery cell and having a slit through which the electrode lead passes forward and rearward; and a bus bar mounted on a front portion of the sensing block and on one side in a width direction of the slit, wherein the electrode lead is bent toward one side in the width direction at a bent portion located forward of the slit and is connected to the bus bar, the sensing block includes a first flat surface, a second flat surface, and a stepped portion, and a boundary where the inner peripheral surface of the slit and the first flat surface meet is formed as a corner having an internal angle of 90 degrees or less.
Resumen de: US2025337078A1
Battery packs that can provide power to an electronic device, can be easy to use and simple to connect to the electronic device, have a small and efficient form factor, and can readily be powered for use.
Resumen de: US2025337042A1
An electricity storage device includes a plurality of electricity storage stacks and a housing case that houses the electricity storage stacks. The housing case includes a top plate part that is located on an upper side of the electricity storage stacks and has an uneven shape, and demarcation members that demarcate regions where the electricity storage stacks are respectively disposed. The top plate part includes protruding portions that protrude upward and depressed portions that are depressed downward. The demarcation members are each disposed between the electricity storage stacks that lie next to each other. Flow passages through which a gas discharged from the electricity storage stacks flows are provided inside the demarcation members. The demarcation members are in contact with the depressed portion.
Resumen de: US2025337018A1
A cylindrical battery cell, a battery, and an electric apparatus. The cylindrical battery cell includes a metal shell and an electrolyte. The electrolyte is accommodated in the metal shell. The electrolyte includes an electrolytic salt. The electrolytic salt includes a hexafluorophosphate and a sulfonylimide, and a molar concentration of the hexafluorophosphate is less than or equal to 0.9 mol/L.
Resumen de: US2025337044A1
A traction battery pack assembly includes an enclosure assembly providing an interior, and a first cell stack housed within the interior. The first cell stack includes first battery cells having first terminals. A second cell stack is housed within the interior. The second cell stack includes second battery cells having second terminals. A first coolant is within the interior. The first coolant directly contacts the first terminals of the first battery cells within the first cell stack and second terminals of the second battery cells within the second cell stack. A second coolant manages thermal energy within the interior. The second coolant is a different type of coolant than the first coolant.
Resumen de: US2025337051A1
Thermal barrier assemblies are provided for traction battery packs. An exemplary thermal barrier assembly may be configured to inhibit the transfer of thermal energy inside the traction battery pack. The thermal barrier assembly may include a first thermally insulating layer, a second thermally insulating layer, and an air gap extending between the first and second thermally insulating layers. The air gap may be established by integrated features provided at an interface between the first and second thermally insulating layers. The air gap may be configured to increase the thermal resistance across a thickness of the thermal barrier assembly, thereby reducing cell-to-cell and/or cell stack-to-cell stack heat transfer within the traction battery pack.
Resumen de: US2025337059A1
A pouch cell formed of wall plies, each wall ply having a metal foil outer layer, and a polymeric inner layer. An external cathode lead tab with a polymer sealing film containing electrically conductive filler on at least one face of the external lead tab is heat-sealed between the edges of two wall plies. A method of making a pouch cell includes disposing a metallic external cathode lead tab with a polymer sealing film strip containing electrically conductive filler, between the edges of pouch wall plies, each pouch wall ply having a metal foil outer layer, and a polymeric inner layer, and applying heat and pressure to the wall plies to heat seal the external cathode lead tab and provide electrical connectivity between the metal foil layer of the wall ply and the external cathode lead tab.
Resumen de: US2025336923A1
Disclosed are positive electrode active materials for a rechargeable lithium battery, positive electrodes including the positive electrode active materials, and rechargeable lithium batteries including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, and second particles comprising a compound having a spinel structure. The amount of the first particles is greater than the amount of the second particles.
Resumen de: US2025336925A1
Disclosed are positive electrode active materials for a rechargeable lithium battery, positive electrodes including the positive electrode active materials, and rechargeable lithum batteries including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, and second particles having a spinel structure. The amount of the first particles is greater than the amount of the second particles.
Resumen de: US2025336919A1
The present application relates to a positive electrode active materials for a rechargeable lithium battery, positive electrodes including the same, and rechargeable lithium batteries including the same. For example, the positive electrode active material includes first particles including a compound of Chemical Formula 1 and having a first average particle diameter, and second particles including a compound of Chemical Formula 2 and having a second average particle diameter that is greater than the first average particle diameter. The content of the first particles is greater than the content of the second particles.
Resumen de: US2025336921A1
Positive electrode active materials for a rechargeable lithium battery, positive electrodes including the same, and rechargeable lithium batteries including the same are provided. A positive electrode active material includes first particles including a compound represented by Chemical Formula 1 and having an olivine structure, second particles including a compound represented by Chemical Formula 2 and having a spinel structure and third particles including a compound of Chemical Formula 3 and having a layered structure. The first particles and the second particles constitute a main active material of the positive electrode active material, and a content of the main active material is about 95 parts by weight to about 99.5 parts by weight based on about 100 parts by weight of the positive electrode active material.
Resumen de: US2025337120A1
A separator and an electrochemical device including the separator are provided. The separator comprises a porous polymer substrate including a polymer resin, and the polymer resin having specific polymer polydispersity index, weight-average molecular weight, content of a fraction eluted at a specific temperature, and indentation depth, thereby having improved compression resistance and insulation breakdown voltage.
Resumen de: US2025337112A1
The present disclosure relates to a separator and a rechargeable lithium battery including the separator. The separator includes a porous substrate and a coating layer on a surface of the porous substrate. The coating layer includes a heat-resistant layer including a binder and a filler, and an adhesive layer including an adhesive binder on the heat-resistant layer. The binder includes a (meth)acryl-based binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof. The filler includes a mixture of cubic filler having a particle diameter D50 ranging from about 50 nm to about 250 nm and a plate-shaped filler having a particle diameter D50 ranging from about 250 nm to about 350 nm in a weight ratio of about 20:80 to about 80:20.
Resumen de: US2025337109A1
The present invention relates to a heat resistant layer composition, a heat resistant layer formed therefrom, and a separator for a lithium secondary battery, and a lithium secondary battery including same, wherein the heat resistant layer composition includes an acrylic copolymer including a first structural unit derived from (meth)acrylamide, and a second structural unit including at least one of a structural unit derived from (meth)acrylic acid or a (meth)acrylate, a structural unit derived from (meth)acrylonitrile, and a structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof; a cross-linking agent including at least one functional group of an aldehyde group, an epoxy group, an amide group, an imide group, an amine group, and a silane-based group; and a solvent.
Resumen de: US2025337028A1
A battery charging device suitable for portable operation includes a charging box with a grip is provided on one side of the top of the charging box near a first opening, and when the battery charging device is lifted by the grip, the tilt direction of the battery charging device is consistent with the tilt direction of a battery compartment. The battery charging device can thereby reduce the risk of the battery easily falling out of the battery compartment during transportation, which improves the reliability of the battery charging device during transportation.
Resumen de: WO2025222409A1
The present application provides a secondary battery. The secondary battery comprises an electrode sheet, wherein the electrode sheet comprises a current collector and an active material layer arranged on at least one side of the current collector, the active material layer comprises a kinetic additive, the structure of the kinetic additive comprises a cavity, and the average diameter of the cavity is 0.8 to 1.5 nm.
Resumen de: US2025337101A1
A method for producing a monocell for a planar battery, the monocell including a first and second electrode, each electrode having a coated metal foil portion and a non-coated metal tab, the coated foil portions and the tabs having a predefined position relative to each other, as well as a predefined shape and surface area, wherein the first electrode is sandwiched between two separator sheets attached to each other along an attachment lane running along the perimeter of the coated foil portion of the first electrode except at the position of the tab of the first electrode, so that the separator sheets form a pocket with the coated foil portion of the first electrode inserted therein and a portion of the tab of the first electrode extending out of the pocket, and wherein the second electrode is attached to the pocket.
Resumen de: US2025337040A1
The present disclosure relates to a battery assembly comprising: a case; a cell stack in which a plurality of battery cells are stacked and accommodated inside the case; and a heat dissipation pad disposed between the cell stack and the case and comprising a metal foam layer and at least one insulating layer.
Resumen de: US2025337036A1
A battery pack includes: prismatic battery cells arranged in two linear rows; a cooling plate disposed vertically below the battery cells; a thermal interface material disposed between the battery cells and the cooling plate; a thermal insulation material disposed at vertical bottoms of a linear space between the two linear rows of battery cells; a first cooling fluid channel that is configured to receive a cooling fluid, that extends linearly in the direction of the linear space, and that is disposed vertically above the thermal insulation material; and a second cooling fluid channel that is configured to receive the cooling fluid, that extends linearly in the direction of the linear space and parallel to the first cooling fluid channel, and that is disposed vertically above the thermal insulation material.
Resumen de: US2025337046A1
Immersion cooling systems are provided for managing thermal energy levels within a traction battery pack system. An exemplary immersion cooling system may include an injection shield arranged to subdivide an interior volume of a battery enclosure assembly into a first interior volume section and a second interior volume section. The injection shield may include a plurality of injection holes configured to spray a cooling fluid (e.g., a dielectric fluid) onto portions of a battery module that is housed within the second interior volume section. The immersion cooling system may additionally include a fluid manifold extending outside of the interior volume of the battery enclosure assembly, and one or more runner pipes that fluidly connect the fluid manifold to the second interior volume section. Together, the fluid manifold and the runner pipe may establish a dedicated vent gas exit flow path for expelling battery vent byproducts from the enclosure assembly during a battery thermal event.
Resumen de: US2025337262A1
A mobile battery manager for charging or discharging a stored battery system may include a converter, a resistive load, and a controller configured to charge or discharge the stored battery system to a desired state of charge determined at the mobile battery manager.
Resumen de: US2025337008A1
A silica composition can be used in preparation of solid polymer electrolytes, wherein the silica composition has a surface-modified colloidal silica dispersion, or an evaporated product of the dispersion. A polymer electrolyte precursor composition for preparation of a solid polymer electrolyte, use of the polymer electrolyte precursor composition in preparation of a solid polymer electrolyte, a method to in-situ prepare a solid polymer electrolyte, a method to improve performance of a lithium-ion battery, a solid polymer electrolyte, an electrochemical device and a device are also described.
Resumen de: US2025336982A1
A positive electrode for a rechargeable lithium battery, and rechargeable lithium battery including the positive electrode are provided. The positive electrode includes a current collector and a positive electrode active material layer on the current collector, wherein the current collector includes about 0.17 wt % to about 0.24 wt % of Cu based on 100 wt % of the current collector, and the positive electrode active material layer has a density of about 3.9 g/cc to about 4.5 g/cc.
Nº publicación: US2025336978A1 30/10/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Resumen de: US2025336978A1
A positive electrode sheet, a battery cell, a secondary battery, and an electric device are provided. The positive electrode sheet includes a positive electrode active material and a lithium supplement additive. The lithium supplement additive satisfies the relationship: R≤Cmin/(100×m×Q), where m is the loading per unit area of the positive electrode sheet (including the total mass of the active material and the lithium supplement additive), Cmin is the minimum rate value applied to the electrode sheet during actual use, is the theoretical specific capacity of the lithium supplement additive, and R is the mass percentage of the lithium supplement additive in the total loading per unit area. This configuration helps ensure lithium balance during battery operation and contributes to performance stability.
BOPI
Sede Electrónica
