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1057
resultados
Última actualización
21/11/2025 [07:10:00]
Resultados 250 a 275 de 1057
Resumen de: US2025349977A1
This application relates to a solid-state electrolyte membrane and a preparation method thereof, a solid-state battery, and an electric apparatus. The solid-state electrolyte membrane includes a solid-state electrolyte material layer and a phase-change toughening agent and a fiber material dispersed in the solid-state electrolyte material layer, where the solid-state electrolyte material layer includes an inorganic ceramic solid-state electrolyte material. The foregoing solid-state electrolyte membrane, through the synergistic effect between the phase-change toughening agent and the fiber material in the solid-state electrolyte material layer, can effectively enhance the mechanical properties of the solid-state electrolyte membrane, particularly its fracture toughness, thereby reducing problems such as dendrites and short circuits caused by fracture.
Resumen de: US2025349975A1
Disclosed are a separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator. The separator includes a substrate, and a heat resistant adhesive layer on one surface of the substrate. The heat resistant adhesive layer includes inorganic particles, a heat resistant binder, and a swellable adhesive binder. The swellable adhesive binder includes a first structural unit derived from a vinyl aromatic monomer, a second structural unit derived from an alkyl acrylate, and a third structural unit derived from a phosphonate-based monomer, and the swellable adhesive binder is distributed in the surface of the heat-resistant adhesive layer to 40% to 60% of the total thickness of the heat resistant adhesive layer.
Resumen de: US2025349976A1
This application relates to a solid-state electrolyte membrane and a preparation method thereof, a solid-state battery, and an electric apparatus. The solid-state electrolyte membrane includes a solid-state electrolyte material layer and a fiber material layer disposed within the solid-state electrolyte material layer, where the solid-state electrolyte material layer includes an inorganic ceramic solid-state electrolyte material, and the fiber material layer includes ceramic fibers. The solid-state electrolyte membrane exhibits better mechanical properties, particularly fracture toughness, which can reduce membrane layer fracture.
Resumen de: US2025349836A1
A positive electrode and a rechargeable lithium battery including the positive electrode are disclosed. The positive electrode may include a positive electrode current collector, a first positive electrode active material layer provided on the positive electrode current collector and including a first positive electrode active material, and a second positive electrode active material layer provided on the first positive electrode active material layer and including a second positive electrode active material, wherein the first positive electrode active material may include a lithium iron phosphate-based compound, the second positive electrode active material may include a lithium cobalt-based oxide, and a weight ratio of the second positive electrode active material to the first positive electrode active material may be about 40 to about 55.
Resumen de: US2025349831A1
The pouch cell includes a positive electrode, a negative electrode, and a diaphragm placed between the positive electrode and the negative electrode. The positive electrode material includes a ternary material coated with lithium manganese iron phosphate; the negative electrode material includes a silicon carbon-mesophase carbon microsphere composite material; the diaphragm is a polyimide nanofiber diaphragm. The present disclosure uses silicon carbon-mesophase carbon microsphere composite material as the negative electrode, lithium manganese iron phosphate coated ternary positive electrode as the positive electrode material, and polyimide nanofiber separator. The safety is obviously improved during piercing. Meanwhile, it may take into account the electrical performance, improve the capacity, charge and discharge rate, long cycle performance and wide temperature range performance of lithium-ion cells; it also improves the service life and cycle life; it has low calorific value, good safety, high stability, and is not prone to dangerous situations such as combustion or explosion.
Resumen de: US2025349833A1
An electrode assembly of a rechargeable battery includes a separator, and a positive electrode and a negative electrode with the separator interposed therebetween, the positive electrode and the negative electrode being wound together with the separator. The negative electrode may include a negative substrate, a first active material layer disposed on one surface of the negative substrate, and a second active material layer disposed on the other surface of the negative substrate. The first active material layer may include a carbon-based active material, a silicon-based active material, and a carbon nanotube. The second active material layer may include the carbon-based active material.
Resumen de: US2025349825A1
The current disclosure includes a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the negative electrode. The negative electrode for the rechargeable lithium battery includes a negative active material layer including a negative active material and a current collector on the negative active material layer, wherein a PCR (Plane angel Change Ratio) value is about 5.0 or less.
Resumen de: US2025349970A1
The positive electrode plate has a positive electrode active material, that includes LiaNixCoyMzO2, where 0.2≤a≤1.2, 0.85≤x≤1, 0≤y<0.15, and x+y+z=1, and M includes one or more of Mn and Al; and a coating weight of the positive electrode active material is 19 mg/cm2 to 45 mg/cm2, and a compacted density is 3.2 g/cm3 to 3.8 g/cm3. The negative electrode plate has a negative electrode active material, where a mass percentage of a silicon-based material in the negative electrode active material is 20% to 100%, a coating weight of the negative electrode active material is 5 mg/cm2 to 13 mg/cm2, and a compacted density is 1.1 g/cm3 to 1.9 g/cm3; and an electrolyte, where an amount of the electrolyte is 0.8 g/Ah to 1.5 g/Ah, and includes an electrolytic solution, and an amount of the electrolytic solution outside a bare cell is less than or equal to 0.1 g/Ah.
Resumen de: US2025349972A1
The present application relates to a battery cell, a battery, and an electrical apparatus. The battery cell comprises an electrode assembly, the electrode assembly comprising a first electrode plate, a second electrode plate and a separator. The polarities of the first electrode plate and the second electrode plate are opposite, and the separator is arranged between the first electrode plate and the second electrode plate. At least one of the first electrode plate, the second electrode plate and the separator comprises a swelling polymer, the swelling polymer satisfying: 300%≤m2/m1≤10000%, and m3/m2≤50%.
Resumen de: US2025346150A1
A method and a system for predicting a battery capacity degradation for an electric vehicle having a battery are provided. The method comprises extracting and pre-processing a raw dataset comprising a plurality of battery loss indicators and a plurality of battery loss values each corresponding to a plurality of time steps to obtain a pre-processed dataset. The method further comprises selecting a loss indicator subset from the pre-processed dataset at a first time step and a second time step based on a smart feature selection (SFS) algorithm. The method further comprises training a machine learning model with each battery loss indicator at the first and second time steps and the battery loss value at the first time step. The method further comprises determining the battery loss value at the second time step with the machine learning model to predict the battery capacity degradation.
Resumen de: US2025349971A1
Disclosed is a separator for an electrochemical device. The separator includes a porous polymer substrate, a porous coating layer formed on at least one surface of the porous polymer substrate and including a polymer binder and inorganic particles, and a dopamine coating layer formed on the porous coating layer and including polydopamine and dextrin. The separator has reduced thermal shrinkage even in a high temperature wet state.
Resumen de: US2025349969A1
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a housing with an inner cavity, an electrode assembly positioned within the cavity, and an exhaust structure located between the electrode assembly and a first wall of the housing. The exhaust structure includes a fluid channel configured to guide airflow. By positioning the exhaust structure within the inner cavity and between the electrode assembly and the housing wall, the airflow can pass through the fluid channel with reduced obstruction. This design allows airflow to reach a designated area more efficiently, thereby enhancing the reliability of the battery cell.
Resumen de: US2025349879A1
Positive electrode active material particles that inhibit a decrease in capacity due to charge and discharge cycles are provided. A high-capacity secondary battery, a secondary battery with excellent charge and discharge characteristics, or a highly-safe or highly-reliable secondary battery is provided. A novel material, active material particles, and a storage device are provided. The positive electrode active material particle includes a first region and a second region in contact with the outside of the first region. The first region contains lithium, oxygen, and an element M that is one or more elements selected from cobalt, manganese, and nickel. The second region contains the element M, oxygen, magnesium, and fluorine. The atomic ratio of lithium to the element M (Li/M) measured by X-ray photoelectron spectroscopy is 0.5 or more and 0.85 or less. The atomic ratio of magnesium to the element M (Mg/M) is 0.2 or more and 0.5 or less.
Resumen de: US2025349875A1
The present disclosure relates to a battery manufacturing apparatus and a controlling method thereof. The battery manufacturing apparatus includes a plurality of cell processors arranged in a first direction, the plurality of cell processors each including a heating unit to heat a battery cell, and a movement adjuster adjusting a distance between the plurality of cell processors by moving the plurality of cell processors in the first direction, wherein one cell processor among the plurality of cell processors maintains a distance between the one cell processor and another cell processor adjacent to the one cell processor at a predetermined target distance by the movement adjuster, and heats the battery cell mounted on the one cell processor together with the another cell processor adjacent to the one cell processor.
Resumen de: US2025349878A1
In a disclosed lithium ion secondary battery, a positive electrode active material includes a lithium-transition metal complex oxide, containing Li, Ni, and Mn and being formed in a layered structure, and includes a covering part, a lithium-transition metal complex oxide has a Ni containing rate being equal to or more than 75 mol % with respect to the total of metal elements other than Li and is a secondary particle, an average void rate of the secondary particle is equal to or more than 2% and not more than 10%, and a covering part contains a boron chemical compound. A negative electrode active material contains a carbon material and a Si containing material, and a containing ratio of a Si element in the negative electrode active material is equal to or more than 5 mass % and not more than 10 mass % of a total amount of the negative electrode active material.
Resumen de: US2025349882A1
This disclosure relates to a flexible membrane of sulfide solid electrolyte. In one embodiment, the flexible membrane has a bending strain of no less than 0.1%. In one embodiment, the flexible membrane has a lithium-ion conductivity of no less than 0.5 mS/cm. The bending strain is calculated according to the formula εM=h/(2r), wherein h is thickness of the membrane and r is a bending radius corresponding to the membrane without any observable kinks, wrinkles, cracks, or damages.
Resumen de: US2025349968A1
Provided are a housing assembly, a battery pack, and an energy storage power supply. The housing assembly includes a housing having a receiving chamber. The receiving chamber is provided with a first support at an inner wall of the receiving chamber. The first support is configured for mounting a battery cell provided with a first explosion-proof valve. The first support is provided with a supporting structure configured to support the battery cell and allow a spacing to be formed between the first explosion-proof valve and the inner wall of the receiving chamber to form a pressure relief space. The pressure relief space is in communication with the receiving chamber. A valve port of the first explosion-proof valve is oriented towards the pressure relief space.
Resumen de: US2025349981A1
A separator, a battery cell, a battery, and an electric device. The separator comprises a liquid retention polymer, and the separator satisfies the following formula: (m2−M)/(m1−M)≥25%, wherein M represents the mass of the electrolyte not absorbed by the separator, and the unit thereof is g; m1 represents the mass of the separator weighed under an ambient pressure after having been immersed in the electrolyte for 2 h, and the unit thereof is g; and m2 represents the mass of the separator weighed under a pressure of 10,000 N in the ambient pressure after having been immersed in the electrolyte for 2 h, and the unit thereof is g.
Resumen de: US2025349967A1
A battery cell, a battery, and an electric apparatus are provided, capable of reducing the impact of the formation process of a pressure relief score on a surface of a housing of the battery cell. The battery cell includes a first wall and a second wall perpendicular to the first wall, where a pressure relief score is integrally formed on the first wall, an isolation groove is provided in a region on the first wall between the pressure relief score and the second wall, the pressure relief score includes a main body portion, and the main body portion is opposite to the isolation groove in a direction perpendicular to the second wall. In the direction perpendicular to the second wall, a ratio of a distance between the main body portion and the second wall to a dimension of the main body portion is greater than or equal to 10.
Resumen de: US2025349966A1
The battery cell includes an outer shell, the outer shell has a wall portion, and along a thickness direction of the wall portion, the wall portion has a first surface and a second surface opposite to each other. The first surface is provided with a first groove, the second surface is provided with a second groove at a position corresponding to the first groove, a bottom surface of the first groove is provided with a scored groove, and the wall portion is capable of rupturing along the scored groove during pressure relief of the battery cell. This battery cell can reduce the depth required to provide the scored groove on the wall portion. It can reduce the forming force exerted on the wall portion in processing the scored groove. It can improve the morphology of a flow material during the formation of the scored groove.
Resumen de: US2025349965A1
The present disclosure relates to a terminal covering film and a secondary battery including the terminal covering film. The terminal covering film according may include an outermost layer in contact with a case of the secondary battery, an innermost layer in contact with the electrode terminal of the secondary battery, and an intermediate layer disposed between the outermost layer and the innermost layer. A melting point of the innermost layer is lower than a melting point of the outermost layer and a melting point of the intermediate layer. The terminal covering film facilitates venting of gases from the secondary battery.
Resumen de: US2025349874A1
An electrode supply device includes: an electrode magazine unit in which a plurality of electrodes are stacked; and an electrode pick-up unit configured to pick up an uppermost first electrode among the plurality of electrodes, wherein at least one of the electrode magazine unit and the electrode pick-up unit includes a heating unit configured to heat the first electrode and a second electrode adjacent to the first electrode to expand an air layer between the first electrode and the second electrode.
Resumen de: US2025349876A1
An electrode assembly having a first electrode, a second electrode, and a separator interposed therebetween are wound, and the first electrode includes an insulation layer that covers a boundary of an uncoated portion and a coated portion along a winding direction of the electrode assembly. A plurality of segments are bent along a radial direction of the electrode assembly to define a bent surface. When a line parallel with the winding direction and passing through a point having a smallest height of the first uncoated portion of the first electrode at lower ends of the plurality of cutting lines with respect to the first coated portion of the first electrode is a datum line, a separation distance between one end of the separator and the datum line along the winding axis is 1.5 mm or less.
Resumen de: US2025349873A1
A process unit for secondary cell battery manufacture according to the present invention provides a structure and method for selecting a pivot structure to provide precise horizontal movement of the degassing device.
Nº publicación: US2025349885A1 13/11/2025
Solicitante:
BELENOS CLEAN POWER HOLDING AG [CH]
Belenos Clean Power Holding AG
Resumen de: US2025349885A1
A glass ceramic solid electrolyte mixture including glass ceramic solid electrolyte including a ternary glass ceramic of borate, Li2SO4 and a lithium halide. Also, a glass ceramic solid electrolyte obtained from the mixture, a solid state battery including the glass ceramic solid electrolyte, and methods of producing the glass ceramic solid electrolyte and the solid state battery.
BOPI
Sede Electrónica
