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OLIVINE-TYPE COMPOUNDS: METHOD FOR THEIR PREPARATION AND USE IN CATHODE MATERIALS FOR SODIUM-ION BATTERIES

Resumen de: US2025260011A1

This disclosure provides for Olivine-type compounds, their preparation and use in cathode materials for sodium-ion batteries. The olivine-type compounds of the invention are obtained by a direct synthesis embodying a hydrothermal method.

Positive Electrode Material, Positive Electrode Including the Same, and Lithium Secondary Battery

Resumen de: US2025260000A1

A positive electrode material includes a positive electrode active material comprising-including a lithium nickel-based oxide having a mole fraction of nickel of 50 mol % to 90 mol % among metallic elements excluding lithium, and a coating layer including boron (B), which is formed on the surface of the lithium nickel-based oxide, wherein the positive electrode material has a BET specific surface area of 0.2 m2/g to 0.4 m2/g, and the boron (B) is included in an amount of 500 ppm to 1,000 ppm based on the total weight of the positive electrode material.

CYLINDRICAL SECONDARY BATTERY

Resumen de: US2025260143A1

Disclosed is a cylindrical secondary battery in which an insulating member located between a rivet terminal and a can includes protrusions protruding therefrom upward and/or downward, thereby preventing rotation of the rivet terminal. The cylindrical secondary battery may include an electrode assembly including a positive electrode plate, a separator, and a negative electrode plate, a cylindrical can configured to accommodate the electrode assembly and to be electrically connected to the negative electrode plate and including an open lower end portion, a rivet terminal configured to be electrically connected to the positive electrode plate through an upper surface of the cylindrical can, an insulating member located between the cylindrical can and the rivet terminal, and a non-polar cap plate configured to seal the lower end portion of the cylindrical can. The insulating member may include protrusions formed on at least one surface thereof facing the cylindrical can or the rivet terminal.

CYLINDRICAL BATTERY SUITABLE FOR HIGH-SPEED PRODUCTION AND ASSEMBLY PROCESS THEREOF

Resumen de: US2025260139A1

A cylindrical battery suitable for high-speed production includes a case assembly, the case assembly comprises a case; the case is a U-shaped structure; a jelly roll member is provided in the case; two ends of the jelly roll member are respectively provided with tabs; the tab at one end of the jelly roll member is welded with a first current collector; the tab at the other end of the jelly roll member is welded with a second current collector; the first current collector is closely attached to a bottom end of the U-shaped structure of the case; the second current collector is provided at an opening of the U-shaped structure of the case; a side of the second current collector away from the jelly roll member is provided with a cover plate; and the second current collector, the case and the cover plate are welded to form an integrated structure.

FLEXIBLE LAMINATES INCLUDING POLYURETHANE ADHESIVE COMPOSITIONS AND ENERGY STORAGE DEVICES INCLUDING THE SAME

Resumen de: US2025260107A1

The invention features a flexible laminate including a first plastic layer, a polyurethane adhesive composition, and a metal layer bonded to the plastic layer through the polyurethane adhesive composition, the polyurethane adhesive composition comprising a reaction product of a first part comprising an isocyanate terminated polyurethane prepolymer, and a second part comprising an epoxy resin having an equivalent weight of at least 300 g/eq. These flexible laminates have the high temperature resistance and chemical resistance necessary to package challenging materials

METHOD, APPARATUS AND SYSTEM FOR THERMAL RUNAWAY PROCESSING AND STORAGE MEDIUM

Resumen de: US2025260079A1

The embodiments of the present application provide a method, apparatus and system for thermal runaway processing and a storage medium. The method first obtains a battery parameter for each of a plurality of battery modules in a power battery pack, then determines that a thermal runaway is occurred in a first battery module based on the battery parameter for each of the plurality of battery modules; and then obtains a second battery module based on the first battery module, wherein the second battery module corresponds to at least one battery module excluding the first battery module in the power battery pack; and finally supplies power to a chiller system with the second battery module.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025260061A1

A battery cell includes an electrode assembly and an electrolyte solution. The electrode assembly includes a positive electrode sheet, a negative electrode sheet, and a separator. The electrolyte solution includes an organic solvent and an electrolyte salt dissolved in the organic solvent. The electrolyte salt includes a lithium salt and another alkali metal salt different from the lithium salt. A value of the compacted density of the positive electrode sheet is in a range of 2.8 g/cm3 to 4.0 g/cm3. The radii of alkali metal ions in the another alkali metal salt are greater than those of lithium ions, and the alkali metal ions can be intercalated into some lithium sites of a positive electrode in a first discharging process, to improve structural stability, and increase components of organic lithium in an SEI in a formation process of an SEI film during first charging and discharging.

APPARATUS AND CORRESPONDING METHOD FOR PRODUCING AN ELECTRODE STACK FROM ELECTRODE STACK ELEMENTS

Resumen de: US2025260041A1

An apparatus for producing an electrode stack from electrode stack elements is provided. A stacking wheel has at least one stacking wheel disc, which can be rotationally driven about an axis of rotation and which has compartments for receiving the electrode stack elements. A stripper strips the electrode stack elements from the compartments during a rotation of the stacking wheel. A shelf is provided for the electrode stack elements stripped from the stacking wheel. A conveyor conveys the electrode stack elements into the compartments. The conveyor comprises a transfer device for transferring the electrode stack elements into the compartments and a feeding device for feeding the electrode stack elements to the transfer device. A method for producing an electrode stack using the apparatus is also provided.

All-Solid-State Lithium Ion Secondary Batteries And Lithium-Free Negative Electrodes Therefor

Resumen de: US2025259996A1

An all-solid-state lithium ion secondary battery includes the lithium-free negative electrode having two or more carbon materials with different particle sizes to increase the contact area with the solid electrolyte. The all-solid-state lithium ion secondary battery includes a positive electrode, a solid electrolyte layer, a negative electrode current collector, and a negative electrode active material layer disposed between the solid electrolyte layer and the negative electrode current collector, wherein the negative electrode active material layer includes a first carbon material; a second carbon material; and Ag; wherein the first carbon material and the second carbon material have different average particle sizes.

COMPOSITE CURRENT COLLECTOR, POSITIVE ELECTRODE SHEET, ELECTROCHEMICAL DEVICE, AND ELECTRIC APPARATUS

Resumen de: US2025260020A1

A composite current collector, including a metal substrate layer and a functional layer located on a surface of the metal substrate layer; where the functional layer is analyzed using an energy dispersive spectrometer, and based on a total number of atoms of the C element, the O element, and a metal element in the functional layer, an atomic percentage of the C element in the functional layer is x, an atomic percentage of the O element in the functional layer is y, and an atomic percentage of the metal element in the functional layer is z, satisfying: 5%≤x≤25%, 10%≤y≤30%, and 55%≤z≤85%. The functional layer with specific element contents on the surface of the metal substrate layer, a coverage of a coating on a surface of the composite current collector can be effectively improved while electrical performance is ensured, thereby improving the safety of the electrochemical device.

HOUSING FOR BATTERY CELL, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025260147A1

The disclosure provides a housing for a battery cell, a battery cell, a battery, and an electric device. A containment chamber is formed inside the housing for the battery cell for containing electrolyte, the housing includes a gas withdrawal structure, through which gases in the containment chamber can be withdrawn, and the gas withdrawal structure includes: a gas withdrawal hole arranged on the housing; and a liquid retaining structure cooperating with the gas withdrawal hole, arranged in the containment chamber, the liquid retaining structure is configured to prevent the electrolyte from being withdrawn from the gas withdrawal hole, where the liquid retaining structure includes: a first body, which is a hollow structure; and a liquid stopper arranged in the first body.

OUTER PACKAGE MATERIAL FOR POWER STORAGE DEVICES, METHOD FOR PRODUCING IT, APPEARANCE INSPECTION METHOD, AND POWER STORAGE DEVICE

Resumen de: US2025260097A1

An outer package material for power storage devices, the outer package material being configured from a multilayer body that comprises at least a surface coating layer, a base material layer, a barrier layer and a thermally fusible resin layer sequentially from the outer side, wherein the surface coating layer contains a resin and a filler. With respect to the outer surface of the surface coating layer, if the reflectance thereof is measured using a goniophotometer at the incident light angle of 60° for every 0.1° of the light reception angle, the ratio (A/B) of the maximum reflectance A in the light reception angle range from 55.0° to 65.0° to the maximum reflectance B in the light reception angle range from 70.0° to 80.0° is 3.50 or less.

POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF, NEGATIVE ELECTRODE PLATE, ELECTRODE ASSEMBLY, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025256985A1

A positive electrode material includes a laminar lithium-containing metal oxide which includes other positive ions with a radius greater than a radius of lithium ions. The radius of the other positive ions in the positive electrode material is greater than the radius of the lithium ions, so that the other positive ions may play a supporting role in a laminar structure to enhance a misalignment energy barrier, alleviate the problem of aggravated misalignment of metal ions and lithium ions in a laminar negative electrode, and improve the stability of the laminar structure. Moreover, the other positive ions in the positive electrode material may also be embedded into a negative electrode material, where the other positive ions with the greater ionic radius play a supporting role in graphite, so as to reduce expansion/shrinkage of the graphite in the process that the ions with the less ionic radius are intercalated/deintercalated.

POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR MANUFACTURING A POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: US2025256984A1

A positive electrode active material for lithium-ion rechargeable batteries comprises particles having Li, M′, and oxygen. M′ comprises Ni in a content x, wherein x≥80 at %, relative to M′; Co in a content y, wherein 0.01≤y≤20.0 at %, relative to M′; Mn in a content z, wherein 0≤z≤20.0 at %, relative to M′; Y in a content b, wherein 0.01≤b≤2.0 at %, relative to M′; Zr in a content c, wherein 0.01≤c≤2.0 at %, relative to M′; D in a content a, wherein 0≤ a≤5.0 at %, relative to M′. D is selected from B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, V, W, and Zn. The material comprises secondary particles, wherein each of the secondary particles consists of at least two primary particles and at most twenty primary particles.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, LITHIUM-ION BATTERY, AND METHOD OF MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: US2025256982A1

A positive electrode active material has a composition represented by LixNiaCObMncM1dM2eO2 and a TM interlayer distance (D) of 2.02 Å to 2.30 Å. In the composition, 0.1≤x≤1.5, 0.5≤a≤1.0, 0≤b≤0.3, 0≤c≤0.3, a+b+c=1.0, 0.0005≤d≤0.050, and 0.0005≤e≤0.050, M1 represents at least one type of element selected from the group including Ba, Pr, La, Y, Sr, Ce, Se, Hf, Rh, Zr, and Sn, and M2 represents at least one type of element selected from the group including W, Re, Sb, Sn, Ta, Os, Ir, Mo, Nb, Tc, Ru, Ga, Ag, Pd, Ge, As, Zr, In, Pt, Al, and Ti.

CARBON NANOTUBE DISPERSION COMPOSITION, MIXTURE SLURRY, ELECTRODE FILM, AND SECONDARY BATTERY

Resumen de: US2025256969A1

A carbon nanotube dispersion composition includes carbon nanotubes (A), a dispersant (B), and a solvent (C). A particle diameter D50 at a cumulative volume of 50% according to laser diffraction particle size distribution measurement is 0.3 to 7 μm, and (1) and (2) below are satisfied. (1) The dispersant (B) is a polymer that has a weight average molecular weight of 5,000 or more and 360,000 or less and includes a carboxyl group-containing structural unit derived from at least one of (meth)acrylic acid and (meth)acrylate having a carboxyl group. (2) When the particle diameter D50 at a cumulative volume of 50% according to laser diffraction particle size distribution measurement of the carbon nanotube dispersion composition is X μm, and a pH is Y, X and Y satisfy (Formula a) and (Formula b) below:Y≥-0.1⁢4⁢9⁢X+4.545(Formula⁢a)Y≤-0.1⁢3⁢4⁢X+5.1⁢4⁢0.(Formula⁢b)

SEMICONDUCTOR DEVICE AND OPERATING METHOD OF SEMICONDUCTOR DEVICE

Resumen de: US2025260240A1

To provide a battery control circuit with a novel structure, a battery protection circuit with a novel structure, and a power storage device including the battery circuit. The semiconductor device includes n cell-balance circuits (n is an integer greater than or equal to 1). One secondary battery is electrically connected to one cell-balance circuit. The cell-balance circuit includes a comparison circuit, and a memory element is electrically connected to an inverting input terminal of the comparison circuit. The memory element includes a first transistor and a capacitor. A potential is retained. The retained potential changes in accordance with a change in a potential of a negative electrode of the secondary battery. The comparison circuit has a function of comparing the retained potential with a potential of a positive electrode of the secondary battery. Output from the comparison circuit controls a gate voltage of a second transistor electrically connected to the secondary battery in parallel. The first transistor includes a metal oxide including indium in a channel formation region.

THERMAL INTERFACE MATERIAL INSTALLATION WITHIN A TRACTION BATTERY PACK

Resumen de: US2025260085A1

A method of assembling components of a traction battery includes dispensing a thermal interface material onto a release sheet. While the thermal interface material remains on the release sheet, the method applies the thermal interface material to a component of a traction battery pack. The method then separates the release sheet from the thermal interface material while the thermal interface material remains on the component of the traction battery pack.

REPLACEABLE BATTERY

Resumen de: US2025260087A1

According to the present disclosure, a replaceable battery includes a cell stack having a rectangular parallelepiped shape, in which a plurality of battery cells are stacked, a case for accommodating the cell stack, and a pair of rails fixed to a lower side of a bottom plate of the case and extending in a longitudinal direction of the case, in which the replaceable battery is configured to be slid in the longitudinal direction and removably mounted on a vehicle and. A metal member for heat removal is provided in an upper side of the bottom plate and in a lower side of the cell stack, and the metal member is disposed between the pair of rails so as to extend, in a bar shape, in the longitudinal direction of the case.

SEPARATORS FOR HIGH VOLTAGE RECHARGEABLE LITHIUM BATTERIES AND RELATED METHODS

Resumen de: US2025260074A1

In accordance with at least selected embodiments, the present disclosure or invention is directed to improved or novel separators, cells, batteries, and/or methods of manufacture and/or use. In accordance with at least certain embodiments, the present disclosure or invention is directed to improved or novel separators such as a separator for a high energy and/or high voltage lithium ion battery which is stable up to a 4.5 volt, or preferably up to a 5.0 volt or higher charging voltage, such as a novel or improved single or multilayer or multiply microporous separator membrane. In accordance with at least selected embodiments, the present application or invention is directed to novel or improved porous membranes or substrates, separator membranes, separators, composites, electrochemical devices, batteries, cells, methods of making such membranes or substrates, separators, cells, and/or batteries, and/or methods of using such membranes or substrates, separators, cells, and/or batteries. In accordance with at least certain embodiments, the present application is directed to novel or improved microporous membranes, battery separator membranes, separators, energy storage devices, batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries. In accordance with at least certain selected embodiments, the present invention is directed to a novel or improved separator membrane or

SILICON-CARBON COMPOSITE MATERIAL AND ANODE COMPRISING THE SAME

Resumen de: US2025259992A1

The present disclosure relates to a silicon-carbon composite material, comprising: a porous carbon scaffold comprising micropores and mesopores and a total pore volume of more than 0.5 cm3/g; a silicon content in the range of ≥30 wt.-% to ≤75 wt.-%, relating to the silicon-carbon composite material; nanoparticles comprising at least one of the elements Cu, Fe or Ni, wherein the nanoparticles are positioned on the surface of the silicon-comprising carbon scaffold, and nanowires, selected from silicon nanowires and carbon nanowires; wherein the nanowires are grown on the nanoparticles, and wherein a first surface coating is provided which is at least partially applied on a first surface area of silicon-carbon composite material, the surface coating comprising at least one of the elements selected from C, Al, Si, Ti, Zr and Nb.

CATHODE COMPOSITIONS WITH BLENDS OF INTERCALATION MATERIALS FOR USE IN A LITHIUM SULFUR BATTERY

Resumen de: US2025260001A1

Exemplary cathode materials include a mixture of an electroactive sulfur material (e.g., S8) and a blended non-sulfur electroactive material comprising two or more non-sulfur electroactive materials, wherein the blended non-sulfur electroactive material is selected such that a discharge voltage profile of the blend of intercalation materials—considered apart from the sulfur electroactive material—has a discharge voltage profile that has substantial overlap with the discharge voltage profile of the sulfur electroactive material. For example, in typical ether electrolytes commonly used in sulfur batteries the discharge voltage profile of S8-Li2S conversion has multiple plateaus (e.g., two plateaus) due to the multistep conversion of sulfur to soluble/intermediate polysulfides (PS) followed by progression to solid or quasi-solid products (e.g., Li2S2/Li2S). By matching this discharge profile with a provided blend of non-sulfur electroactive materials, the rate and efficiency characteristics of the sulfur cathode can be improved throughout the battery discharge process.

BATTERY MODULE INCLUDING SEALING PORTION

Resumen de: US2025260103A1

A battery module includes a first sub-module and a second sub-module respectively including a cell assembly formed by stacking a plurality of battery cells and a protective cover accommodating at least a portion of the cell assembly, and facing each other in a first direction, and a sealing portion provided on the protective cover and disposed on at least a portion of a peripheral surface of the protective cover. The sealing portion is formed by a plurality of sealing components separable based on the peripheral surface of the protective cover.

LITHIUM-ION CELL HAVING RIGID STRUCTURE WITH PRESSURE

Resumen de: US2025260069A1

A device that includes an electrochemical cell that includes a rigid housing, electrodes that comprises an anode, a cathode, and an adjustable pressure element configured to assert a controlled pressure on at least one of the electrodes. The controlled pressure is set to a first value during a first point in time and is set to a second value during a second point in time. The electrodes and the adjustable pressure element are located within the rigid housing.

VEHICLE

Nº publicación: US2025260068A1 14/08/2025

Solicitante:

TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA

Resumen de: US2025260068A1

ECU performs a process including the steps of acquiring a resistance value of an insulation resistance, determining that a resistance value is equal to or less than a threshold value, determining that an electric leakage occurs on the vehicle body side, turning on a SMR when the resistance value is greater than the threshold value, acquiring a resistance value of the insulation resistance, determining that an electric leakage occurs on the battery pack side when the resistance value is equal to or less than the threshold value, and determining that there is no electric leakage when the resistance value is greater than the threshold value.