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1373
resultados
Última actualización
13/12/2025 [07:31:00]
Resultados 425 a 450 de 1373
Resumen de: US2025372648A1
The present disclosure relates to a secondary battery and a method for preparing the same, a battery pack, an energy storage system, and an electric apparatus. The secondary battery includes cathode active particles. The cathode active particles include a core and a carbon layer coating the core, and the core includes at least one of a lithium transition metal phosphate and a lithium transition metal oxide. Part of the cathode active particles are cracked, an average width of cracks is in a range of 10 nm to 30 nm, and an average length thereof is in a range of 300 nm to 800 nm.
Resumen de: US2025372644A1
The present invention relates to the field of lithium batteries, in particular to a lithium-ion battery positive electrode and a lithium-ion battery. The positive electrode comprises a positive electrode current collector and a positive electrode material on the positive electrode current collector, the positive electrode material comprising a positive electrode active material, the positive electrode active material at least comprising a polycrystalline ternary material and a monocrystalline ternary material.
Resumen de: US2025372626A1
Provided are a composite cathode active material for lithium secondary batteries with excellent coating quality and a method of preparing the same. The composite cathode active material comprises a core portion of a lithium transition metal compound and a shell portion of a sulfide-based solid electrolyte with a cohesive index between about 37 and 46. The shell constitutes about 2% to 10% by weight of the composite, with a thickness of about 50 nm to 500 nm and a planar density of about 0.05 mg/cm2 to 0.3 mg/cm2, determined by X-ray fluorescence spectrometry. The preparation method includes coating the core with the sulfide-based solid electrolyte through controlled mixing, stirring, and heat treatment, ensuring uniform and consistent coating quality. This composite material enhances the performance of lithium secondary batteries by improving the cathode's stability, ion conductivity, and overall electrochemical properties.
Resumen de: US2025372624A1
A negative electrode active material, a method for preparing the same, a negative electrode composition and a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided.
Resumen de: US2025372623A1
The present invention relates to a positive active material including: a lithium transition metal oxide which is in the form of a single particle and divided into a surface part and a core; and a coating part which is formed on the surface part and contains cobalt, wherein the surface part includes an oxidation number gradient layer in which the oxidation number of nickel (Ni) increases toward the outermost surface, and a method for producing the same.
Resumen de: US2025372619A1
The present invention relates to a negative electrode active material, a negative electrode including the same, a secondary battery including the negative electrode, and a method for manufacturing a negative electrode active material.
Resumen de: US2025372841A1
A battery cell may include an electrode assembly in which a first electrode and a second electrode are wound around a winding axis while a separator is interposed therebetween, the first electrode including a first non-coated portion that is not coated with an active material layer, a battery housing accommodating the electrode assembly therein, a collector including a support portion disposed on an upper portion of the electrode assembly, a tap coupling portion, a housing coupling portion including at least one welded portion welded to the inner surface of the between housing, and a housing cover configured to cover the opening, wherein the number of welded portions may be smaller than or equal to the number of tap coupling portions, or wherein a breaking portion configured to have lower strength than the surrounding area may be provided at the boundary between the support portion and the housing coupling portion.
Resumen de: US2025372707A1
Provided is a non-aqueous electrolyte capable of inhibiting an increase in battery resistance when repeating charge/discharge cycles. The non-aqueous electrolyte includes a compound represented by the following Chemical Formula 1:wherein R1 represents a C3-C20 linear or branched alkylene group, and each of R2 to R5 independently represents a hydrogen atom, a halogen atom or a C1-C5 alkyl group.
Resumen de: US2025372604A1
For an electrode sheet manufacturing apparatus, a pressure roll is disposed so as to hold an unformed portion of the electrode sheet between the pressure roll and a support roll, except for a portion of the electrode sheet on which an active material layer is formed. The pressure roll is a rubber roll at least an outer circumferential surface of which is made of a rubber. The rubber satisfies the following expression: y1≥y2>0.8×y1, where y1 is the modulus of longitudinal elasticity of the rubber at 25° C. and y2 is the modulus of longitudinal elasticity of the rubber at 60° C.
Resumen de: US2025372703A1
A method for producing a sulfide solid electrolyte composite includes: adding a metal compound to a solution containing at least one sulfide solid electrolyte raw material and dispersing the metal compound or a compound derived from the metal compound to obtain a metal dispersion liquid; removing a solvent of the metal dispersion liquid to obtain a composite powder of the metal compound or the compound derived from the metal compound and the sulfide solid electrolyte raw material; and obtaining the sulfide solid electrolyte composite using the composite powder.
Resumen de: US2025372594A1
A method for producing a bipolar electrode includes obtaining a bipolar electrode respectively having a positive electrode mixture layer and a negative electrode mixture layer at both surfaces of an electrode foil through: a positive electrode mixture coating step of coating a positive electrode mixture coating liquid on one surface of an electrode foil and drying the positive electrode mixture coating liquid, to form a positive electrode mixture coating film; a first pressing step of pressing the electrode foil having the positive electrode mixture coating film; a negative electrode mixture coating step of coating a negative electrode mixture coating liquid on another surface of the electrode foil by a screen printing method and drying the negative electrode mixture coating liquid, to form a negative electrode mixture coating film; and a second pressing step of pressing the electrode foil having the negative electrode mixture coating film.
Resumen de: US2025372603A1
An electrode sheet manufacturing method includes a stepped roll pressing step of conveying an electrode sheet while pressing the electrode sheet onto a stepped roll that has a larger diameter at a part coming into contact with a boundary region of an uncoated portion with an active material layer than other parts coming into contact with other regions of the electrode sheet.
Resumen de: WO2025251081A1
Aspects of the present disclosure relate to a method of developing a battery charging profile. The method includes performing an experimentation process on a battery, performing a parameterization process on the battery, developing a battery model for the battery based on experimentation data and parameterization data, generating simulated battery data using the battery model, and generating a battery performance report based on the simulated battery data. Other aspects relate to a multi-channel, multi-tenant system for developing a battery charging profile. The system includes a first battery cycler and a second battery cycler, wherein the first and second battery cyclers are configured to deliver a charge signal to a battery disposed therein. The system also includes a data storage infrastructure in communication with the first and second cyclers and a multi-tenant data processing application stored on the data storage infrastructure.
Resumen de: WO2025250852A1
Existing pre-lithiation methods are beset by many limitations, such as non-uniformity, over-lithiation, poor compatibility with battery components, and scaling challenges. This disclosure provides several technical solutions to the problem of effectively pre-lithiating electrodes. Some variations provide an electrochemical method of pre-lithiating a lithium-ion battery containing lithium vanadium oxide. Porous electrodes ameliorate the V2O5 pre-lithiation procedure, enhancing overall efficiency. Various configurations are disclosed, employing two or three electrodes. Other methods pre-lithiate any electrode material for a lithium-ion battery, utilizing a liquid lithium-ion conductor in a transport path with an electrode precursor powder material, to react lithium with the electrode precursor material, thereby generating a pre-lithiated electrode. Still other methods pre-lithiate any electrode material for a lithium-ion battery, mechanically agitating an electrode precursor material with a solid lithium-containing material, to react lithium with the electrode precursor material, thereby generating a pre-lithiated electrode. Experimental data are presented to demonstrate the technology.
Resumen de: WO2025250962A1
An energy storage enclosure including a battery pack, a plurality of battery modules arranged within the battery pack, a plurality of battery submodules arranged within each of the battery modules, and a plurality of battery cells arranged within each of the plurality of battery submodules. Each of the battery submodules includes a structural subcomponent having a first structural plate, a second structural plate, a first structural end plate fixedly attached to the first structural plate and the second structural plate, and a second structural end plate fixedly attached to the first structural plate and the second structural plate.
Resumen de: WO2025250912A1
An energy storage system includes a battery pack, and a plurality of battery modules arranged within the battery pack. Each of the plurality of battery modules includes a battery module enclosure, a plurality of battery cells arranged within the battery module enclosure, and a plurality of cold plates arranged within each of the plurality of battery modules. The plurality of battery cells is arranged in a plurality of layers, and at least one of the plurality of cold plates is arranged adjacent to one of a bottom side of one of the plurality of layers, and at least another of the plurality of cold plates is arranged adjacent to a top side of the one of the plurality of layers.
Resumen de: US2025372844A1
A battery cell, a battery, and an electrical device are described. The battery cell includes a shell, an electrode assembly, a first insulating protective layer, and a second insulating protective layer. The first insulating protective layer is disposed on an inner wall of the shell, and the second insulating protective layer is configured to envelop at least a portion of the electrode assembly. The battery cell provided in the embodiments of the present application uses the first insulating protective layer and the second insulating protective layer to separate the shell from the electrode assembly, thereby increasing the creepage distance between the shell and the electrode assembly. This can achieve the purpose of improving the breakdown voltage resistance between the shell and the electrode assembly, thereby effectively enhancing the high-voltage breakdown resistance of the shell, and consequently reducing the probability of combustion or explosion of the battery cell.
Resumen de: US2025372847A1
A battery cell includes a housing and a protective member. The housing includes a case and an end cover. An opening is formed in at least one end of the case in a first direction, and the end cover closes the opening. The end cover is connected to the case to form a connection portion. The protective member includes a main body portion and a first flange portion. The main body portion surrounds an outer surface of the case. In the first direction, the first flange portion is connected to an end of the main body portion, and the first flange portion is disposed on the end cover and covers at least a part of the connection portion. The main body portion of the protective member surrounds the outer surface of the case such that the case can be protected, thereby reducing the risk of damage to the case.
Resumen de: US2025372701A1
A solid state electrolyte (SSE) including a dense membrane including LLZO having a thickness equal to or lower than 100 μm and a Sb-including coating layer having a thickness between 1 and 20 nm provided on a surface of the dense membrane, the dense membrane having a density equal to or higher than 90% of the theoretical density of the membrane, wherein the surface of dense membrane onto which the coating layer is provided is substantially free of Li2CO3, wherein the SSE comprises a first Li—Sb alloy at the interface of the Sb-including coating layer and the LLZO-including dense membrane, wherein the thicknesses are as calculated from SEM images of the SSE. Also, a solid state battery (SSB) including the SSE and to methods of producing the SSE and the SSB.
Resumen de: US2025372807A1
A battery cell, a battery, a power-consuming apparatus, and a bracket are disclosed. The battery cell includes a housing with an explosion-proof valve, an electrode assembly disposed within the housing, and a bracket. The bracket includes a body having a first side and a second side opposite each other, and an exhaust hole positioned to align with the explosion-proof valve. A first abutting portion is arranged on the first side to abut an end portion of the electrode assembly, such that the exhaust hole and the end portion form a first exhaust channel. The design enhances gas exhaust capability, reduces the risk of combustion or explosion, and mitigates impact on adjacent cells, thereby improving battery reliability and stability.
Resumen de: US2025372762A1
A battery pack assembly and a manufacturing method thereof are disclosed. The battery pack assembly includes a cell cartridge assembly formed by stacking cartridge blocks and battery cells and includes an inlet duct coupled to the cell cartridge assembly to form a flow space therebetween. The flow space allows air introduced through a cooling air inlet to flow therethrough and distributes the air to cooling passages of the stacked cartridge blocks. The battery pack assembly further includes an outlet duct coupled to the cell cartridge assembly and configured to discharge the air therethrough, a blower configured to suction air, and a flow resistance member disposed on the bottom of the inlet duct and configured to partially block the air flowing along the flow space so that the air temporarily stays on the upstream side.
Resumen de: US2025372730A1
A monomer for an electrolyte according to the embodiments of the present disclosure may include a compound represented by Formula 1. A lithium secondary battery according to the embodiments of the present disclosure includes a cathode, an anode, and an electrolyte, wherein the electrolyte may include a polymer of the compound represented by Formula 1.wherein X1, X2 and X3 are each independently a halogen element, R1, R2 and R3 are each independently hydrogen, a halogen element, a substituted or unsubstituted C1 to C6 alkyl group, or a polymerizable group, andat least one of R1, R2 or R3 is a polymerizable group.
Resumen de: US2025372714A1
The present disclosure provides a non-aqueous electrolyte and a lithium secondary battery including the same. The non-aqueous electrolyte of the present disclosure includes a lithium salt, an organic solvent, and an additive. The additive includes a cyclic borate-based compound so as to prevent the decomposition of the non-aqueous electrolyte of the lithium secondary battery in a high-power environment that could lead to negative electrode degradation, or to further improve low-temperature high-rate discharging characteristics, high-temperature stability, overcharging prevention, and high-temperature battery expansion suppression effects
Resumen de: US2025372699A1
A solid electrolyte for an all-solid-state battery designed from a first principle-based calculation and represented by the following Chemical Formula 1 is provided: Chemical Formula 1 LinMCl6-xFx In Chemical Formula 1, M may be at least one trivalent metal among Al, Ga, In, Tl, Bi, Sc, Lu, Y, Yb, Tm, Er, Ho, Dy, Tb, Gd, Sm, Nd, and La, or at least one tetravalent metal among Ti, Zr, and Hf; n may have a value of 3 when M is a trivalent metal and have a value of 2 when M is a tetravalent metal; and x may have a value greater than 0 and less than or equal to 1.5.
Nº publicación: US2025372843A1 04/12/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Resumen de: US2025372843A1
A secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate having a polarity different from the first electrode plate, and a separator between the first electrode plate and the second electrode plate, a case configured to accommodate the electrode assembly, and an adhesive member between the electrode assembly and the case, the adhesive member including a porous film.
BOPI
Sede Electrónica
