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Publicaciones de los últimos 15 días/Last 15 days publications (excluidas pubs. CN y JP /CN and JP pubs. excluded)
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ANODE FOR SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

NºPublicación:  US20260066307A1 05/03/2026
Solicitante: 
SK ON CO LTD [KR]
SK ON CO., LTD
US_20260066307_PA

Resumen de: US20260066307A1

An anode for a secondary battery includes an anode current collector, an anode mixture layer disposed on at least one surface of the anode current collector and including an anode active material and an anode binder, and at least one gap that is open on a surface of the anode mixture layer and extends toward the anode current collector. An angle (θ) between the gap and a surface of the anode current collector is 70° to 110°. A method of manufacturing an anode for a secondary battery includes coating by applying an anode slurry containing an anode active material, a binder, and a magnetic material to at least one surface of an anode current collector, recovering the magnetic material contained in the anode slurry using a magnet spaced apart on the anode slurry, and drying the anode slurry and manufacturing an anode mixture layer.

CATHODE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

NºPublicación:  US20260066302A1 05/03/2026
Solicitante: 
SK ON CO LTD [KR]
SK ON CO., LTD
US_20260066302_PA

Resumen de: US20260066302A1

A cathode for a secondary battery according to embodiments of the present disclosure includes a cathode current collector and a cathode active material layer, and the cathode active material layer includes a cathode active material and a binder. The cathode active material includes first particles including lithium iron phosphate. The binder includes a first fluorine-based polymer and a second fluorine-based polymer having a hydrophilic functional group bound to the first fluorine-based polymer.

SILICON-BASED ENERGY STORAGE DEVICES WITH CYCLIC CARBONATE CONTAINING ELECTROLYTE ADDITIVES

NºPublicación:  US20260066350A1 05/03/2026
Solicitante: 
ENEVATE CORP [US]
Enevate Corporation
US_20260066350_PA

Resumen de: US20260066350A1

Electrolytes and electrolyte additives for use in energy storage devices, comprising cyclic carbonate compounds.

SECONDARY BATTERY

NºPublicación:  US20260066361A1 05/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
US_20260066361_PA

Resumen de: US20260066361A1

A secondary battery, includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator wherein the electrode assembly is wound; a can for accommodating the electrode assembly and an electrolyte; a finishing tape including a film layer comprising a nylon material and an adhesive layer for attaching the film layer to the electrode assembly, wherein the finishing tape at least partially surrounds the electrode assembly; and a cap assembly that seals the can.

ELECTRODE WETTING APPARATUS

NºPublicación:  US20260066352A1 05/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_20260066352_PA

Resumen de: US20260066352A1

An electrolyte wetting apparatus includes a first mold configured to wrap a case of a secondary battery, an interior of the case accommodating an electrode assembly and an electrolyte that impregnates the electrode assembly; a magnetorheological fluid configured to wrap the first mold; and a magnetic field application device configured to apply a time-varying magnetic field to the magnetorheological fluid so that the secondary battery vibrates.

SYSTEMS AND METHODS FOR LITHIUM METAL DEPOSITION

NºPublicación:  US20260066338A1 05/03/2026
Solicitante: 
PURE LITHIUM CORP [US]
Pure Lithium Corporation
US_20260066338_PA

Resumen de: US20260066338A1

Provided are a conformable polymer coated lithium metal electrode, a solid electrolyte, and an inorganic molten salt electrolyte for a rechargeable lithium metal battery. Systems and methods are also provided for controlling the electroplating of lithium metal onto negative electrodes to allow for more rapid recharging of lithium metal batteries while minimizing dendrite formation.

BATTERY

NºPublicación:  US20260066304A1 05/03/2026
Solicitante: 
OHNO SANEYUKI [JP]
HUEBNER JAN FRYDERYK [JP]
ASAKURA RYO [JP]
SHIOTANI SHINYA [JP]
TOYOTA JIDOSHA KK [JP]
TOHOKU UNIV [JP]
OHNO Saneyuki,
Huebner Jan Fryderyk,
Asakura Ryo,
Shiotani Shinya,
TOYOTA JIDOSHA KABUSHIKI KAISHA,
TOHOKU UNIVERSITY
US_20260066304_PA

Resumen de: US20260066304A1

A battery with excellent cycle characteristics, the battery comprising a cathode layer, an electrolyte layer and an anode layer, wherein the cathode layer comprises a cathode active material and an add-in material; the cathode active material comprises a S element; the add-in material comprises a Cl element and at least one metal element selected from the group consisting of a Mn element, a Y element, a Sn element, a V element, a Nb element and a Ta element; and the add-in material is less than 10% by mass of the cathode layer.

ELECTRODE PLATE, ELECTRODE BODY, AND BATTERY

NºPublicación:  US20260066356A1 05/03/2026
Solicitante: 
PANASONIC ENERGY CO LTD [JP]
Panasonic Energy Co., Ltd
US_20260066356_PA

Resumen de: US20260066356A1

A disclosed electrode plate includes: a band-shaped core body having a first principal surface and a second principal surface; and an active material layer formed on each of the first principal surface and the second principal surface. The core body includes a double-side coated part on which the active material layer is formed on each of the first principal surface and the second principal surface, and an exposed part provided continuously with the double-side coated part and on which the active material layer is not formed at least on the first principal surface. The first principal surface on the exposed part has an identification indication part formed thereon in a region within 90% of an area located toward a center in a width direction of the core body.

BATTERY PACK

NºPublicación:  US20260066382A1 05/03/2026
Solicitante: 
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
US_20260066382_PA

Resumen de: US20260066382A1

A battery pack includes a battery stack and a band body that binds battery cells of the battery stack between the battery stack and a cooler that cools the battery cells. In the battery pack, a plurality of heat conductive sheets is provided between the battery cells and the band body and between the cooler and the band body. Between the battery cells and the band body, one end portion of each curved heat conductive sheet is brought into surface contact with and joined to the battery cells, and another end portion thereof is brought into surface contact with and joined to the band body. Thereby, even when a curve or the like arises on the band body and distances between the battery cells and the band body vary, since elastic deformation of the heat conductive sheets follows, deterioration of cooling efficiency for the stacked battery cells can be restrained.

VEHICLE

NºPublicación:  US20260066376A1 05/03/2026
Solicitante: 
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
US_20260066376_PA

Resumen de: US20260066376A1

The vehicle is provided with a circuit portion capable of transmitting thermal energy to the air conditioner by flowing the coolant warmed by the water heater to the air conditioner side, a circuit portion capable of transmitting thermal energy to the battery device side by flowing the coolant warmed by the water heater to the battery device side, and a flow rate adjusting valve capable of adjusting the flow rate of the coolant flowing to these circuit portions, and the control unit controls the flow rate adjusting valve, based on the measurement result of the first thermometer for the coolant flowing through the circuit portion to which the thermal energy is supplied from the circuit portion via the heat exchanger from the circuit portion, the state of the circuit portion and the circuit portion is determined.

POWER STORAGE DEVICE

NºPublicación:  US20260066385A1 05/03/2026
Solicitante: 
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
US_20260066385_PA

Resumen de: US20260066385A1

A power storage device includes a plurality of power storage cells, a first heat conduction member, a second heat conduction member, a first connecting member, and a second connecting member. The first heat conduction member faces a portion on one side of a safety valve in a second direction. The second heat conduction member faces a portion on another side of the safety valve in the second direction. The first connecting member is provided between the valve mounting surface of each power storage cell disposed in odd-numbered positions from one end side power storage cell to another end side power storage cell, and the first heat conduction member. The second connecting member is provided between the valve mounting surface of each power storage cell disposed in even-numbered positions from the one end side power storage cell to the other end side power storage cell, and the second heat conduction member.

ULTRAHIGH-MOLECULAR-WEIGHT POLYOLEFIN SEPARATOR AND METHOD FOR PREPARING SAME

NºPublicación:  US20260062506A1 05/03/2026
Solicitante: 
SHANGHAI ENERGY NEW MATERIALS TECH CO LTD [CN]
SHANGHAI ENERGY NEW MATERIALS TECHNOLOGY CO., LTD
US_20260062506_A1

Resumen de: US20260062506A1

The present application provides an ultrahigh-molecular-weight polyolefin separator, including ultrahigh-molecular-weight polyethylene. ultrahigh-molecular-weight polyethylene has an average molecular weight of ≥1 million. The ultrahigh-molecular-weight polyolefin separator has a median aperture of 0.04 μm-1 μm, the maximum aperture of no more than 1.2 μm, and a puncture strength of ≥50 gf. Further, the present application further provides a method for preparing an ultrahigh-molecular-weight polyolefin separator. Because the polyolefin separator is safer than an ordinary non-woven separator, and has higher ionic conductivity and larger median aperture, the problems that an ordinary non-woven separator of a lithium-ion battery, although having a high lithium-ion passage rate, has a high degree of danger, and is prone to cause a short circuit of the battery are exactly solved.

Composite Sodium Ferrous Sulfate Cathode Material, and Preparation Method and Application Thereof

NºPublicación:  US20260062310A1 05/03/2026
Solicitante: 
HUBEI WANRUN NEW ENERGY TECH CO LTD [CN]
HUBEI WANRUN NEW ENERGY TECHNOLOGY CO., LTD
US_20260062310_PA

Resumen de: US20260062310A1

The present disclosure belongs to the field of sodium batteries. Provided are a composite sodium ferrous sulfate cathode material, and a preparation method and application thereof. The composite sodium ferrous sulfate cathode material includes a core. A chemical formula of the core is NaxMyFez(PO4)k(SO4)(0.4-0.6) xOt, where M includes at least one of manganese, vanadium, or titanium, 16≤x≤17, y=1, 4≤z≤5, 2≤k≤2.6, and y+z−0.1x−1.5k≤t≤y+z+0.1x−1.5k. According to the present disclosure, sulfate decomposition is reduced, the material performance of the composite sodium ferrous sulfate cathode material is improved, and a secondary battery using the composite sodium ferrous sulfate cathode material is improved in terms of performance such as cycling performance.

LITHIUM SUPPLEMENT AND PREPARATION METHOD THEREOF, CATHODE SLURRY, AND BATTERY

NºPublicación:  US20260062308A1 05/03/2026
Solicitante: 
BEIJING EASPRING MATERIAL TECH CO LTD [CN]
BEIJING EASPRING MATERIAL TECHNOLOGY CO., LTD
US_20260062308_PA

Resumen de: US20260062308A1

A lithium supplement includes a core and a coating layer located on at least part of a surface of the core. The core satisfies a chemical formula LixM1yM21−yO6, where: 6≤x≤8; 0

POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, BATTERY CELL, AND POWER CONSUMING APPARATUS

NºPublicación:  US20260062298A1 05/03/2026
Solicitante: 
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
Contemporary Amperex Technology Co., Limited
US_20260062298_PA

Resumen de: US20260062298A1

The present application discloses a positive electrode active material, a preparation method thereof, a battery cell, and a power consuming apparatus. The positive electrode active material includes a lithium-containing phosphate, a charge capacity per gram of the positive electrode active material at 25° C. is denoted as C1, the charge capacity per gram of the positive electrode active material at 60° C. is denoted as C2, both units are mAh/g, and C2/C1≥1.020. The positive electrode active material provided in the present application can improve a cycle performance of a battery.

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

NºPublicación:  US20260066335A1 05/03/2026
Solicitante: 
SK ON CO LTD [KR]
SEOUL NATIONAL UNIV R&DB FOUNDATION [KR]
SK ON CO., LTD,
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
US_20260066335_PA

Resumen de: US20260066335A1

A cathode active material for a lithium secondary battery according to exemplary embodiments includes lithium metal oxide particles and a coating portion attached to a surface of the lithium metal oxide particles through a chemical bond. The coating portion includes a thiol group. The cathode active material for a lithium secondary battery according to exemplary embodiments may suppress the decomposition of the electrolyte, thereby improving the cycle life characteristics of the secondary battery.

PRESS PLATE FOR FLATTENING POUCH-TYPE CELL AND METHOD OF MANUFACTURING POUCH-TYPE CELL USING THE SAME

NºPublicación:  US20260066331A1 05/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
US_20260066331_PA

Resumen de: US20260066331A1

Disclosed are a press plate capable of effectively flattening a pouch-type cell and also a method of manufacturing a pouch-type cell using the same. The press plate for flattening a pouch-type cell includes a surface facing the pouch-type cell, and the surface facing the pouch-type cell includes at least a portion made of an elastic material.

PRISMATIC TYPE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF

NºPublicación:  US20260066400A1 05/03/2026
Solicitante: 
LG ELECTRONICS INC [KR]
LG ELECTRONICS INC
US_20260066400_PA

Resumen de: US20260066400A1

A prismatic type secondary battery includes an electrode assembly including an electrode tab, a pouch that accommodates the electrode assembly and includes a joint portion formed open at a location corresponding to the electrode tab, a prismatic can having one side open to accommodate the pouch, and a cap assembly including a metal current collector and inserted into the open side of the prismatic can, and in this case, the pouch includes the joint portion joined to the cap assembly while the electrode tab is connected to the metal current collector, and the prismatic type secondary battery improves the efficiency of an electrolyte injection process through a sealing structure in which a pouch accommodating an electrode assembly is inserted into a prismatic can and a joint portion of the pouch is joined to a cap assembly.

SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

NºPublicación:  US20260066402A1 05/03/2026
Solicitante: 
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
US_20260066402_PA

Resumen de: US20260066402A1

A secondary battery includes an electrode assembly including a first electrode, a second electrode, and a separator, an inner case including an upper opening of which a first surface is open, a lower opening of which a second surface facing the first surface is open, and a tubular inner sidewall surrounding the electrode assembly, an upper terminal plate joined to the upper opening and electrically coupled to the first electrode, a lower terminal plate joined to the lower opening and electrically coupled to the second electrode, and an outer case including a tubular outer sidewall surrounding the inner case, an upper part extending inwardly from the outer sidewall and joined to the upper terminal plate, and a lower part extending inwardly from the outer sidewall and joined to the lower terminal plate, wherein the inner case and the outer case include an insulating material.

FOLDING PROCESSING APPARATUS FOR BATTERY CELL AND BATTERY CELL MANUFACTURING METHOD USING THE SAME

NºPublicación:  US20260066401A1 05/03/2026
Solicitante: 
SK ON CO LTD [KR]
SK ON CO., LTD
US_20260066401_PA

Resumen de: US20260066401A1

A folding processing apparatus for a battery cell includes a first guide member defining a first folding line on a first surface of a sealing portion of a battery cell, a second guide member defining a second folding line on the first surface of the sealing portion, a first bending member defining the first folding line on a second surface of the sealing portion and bending the sealing portion along the second folding line, and a second bending member bending the sealing portion by 180 degrees along the first folding line.

BATTERY AND BATTERY MANUFACTURING METHOD

NºPublicación:  US20260066380A1 05/03/2026
Solicitante: 
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
US_20260066380_PA

Resumen de: US20260066380A1

A battery of the present disclosure has an electrode body, a case accommodating the electrode body, and a resin body electrically insulating the electrode body and the case. The electrode body includes a positive electrode current collector, a positive electrode active material layer, an electrolyte, a negative electrode active material layer and a negative electrode current collector. The case includes a metal tube having a first opening and a second opening, and covers that seal the first opening and the second opening respectively. The resin body includes plural concave regions extending from the first opening toward the second opening.

LITHIUM METAL COMPOSITE OXIDE POWDER, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, POSITIVE ELECTRODE, AND LITHIUM SECONDARY BATTERY

NºPublicación:  US20260066280A1 05/03/2026
Solicitante: 
SUMITOMO METAL MINING CO LTD [JP]
Sumitomo Metal Mining Co., Ltd
US_20260066280_PA

Resumen de: US20260066280A1

A lithium metal composite oxide powder has a layered structure, and includes at least Li, Ni, an element X, and an element M. The element X is at least one element selected from the group consisting of Co, Mn, Fe, Cu, Ti, Mg, Al, W, Mo, Nb, Zn, Sn, Zr, Ga and V. The element M is at least one element selected from the group consisting of B, Si, S and P. A molar ratio of Ni to a sum of Ni and the element X, Ni/(Ni+X), is 0.40 or more. A molar ratio of the element M to a sum of Ni and the element X, M/(Ni+X), is more than 0 and 0.05 or less. The lithium metal composite oxide powder has core particles and coatings. The coatings including the element M at a concentration of more than 0.0185 mol/cm3 and 0.070 mol/cm3 or less.

MEMBER FOR POWER STORAGE DEVICE, ALL-SOLID-STATE BATTERY, AND METHOD FOR MANUFACTURING MEMBER FOR POWER STORAGE DEVICE

NºPublicación:  US20260066266A1 05/03/2026
Solicitante: 
NIPPON ELECTRIC GLASS CO LTD [JP]
NIPPON ELECTRIC GLASS CO., LTD
US_20260066266_PA

Resumen de: US20260066266A1

Provided is a member for a power storage device that, even when the amount of electrode active material supported is increased, enables charge and discharge and thus achieves a high capacity. A member 6 for a power storage device includes: a solid electrolyte layer 1; and an electrode layer 2 provided on the solid electrolyte layer 1 and made of a sintered body of an electrode material layer 2A containing an electrode active material precursor powder having an average particle diameter of not less than 0.01 μm and less than 0.7 μm.

COMPOSITION FOR POSITIVE ELECTRODE OF NON-AQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY, POSITIVE ELECTRODE SHEET, AND NON-AQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY

NºPublicación:  US20260066291A1 05/03/2026
Solicitante: 
FUJIFILM CORP [JP]
FUJIFILM Corporation
US_20260066291_PA

Resumen de: US20260066291A1

Provided are a composition for a positive electrode containing a positive electrode active material consisting of a large particle group A having a particle diameter of 5.0 μm or more and a small particle group B having a particle diameter of less than 5.0 μm, in which, in a number-based particle size distribution of the positive electrode active material, in a case where the total frequency is set to 100%, a frequency of the large particle group A is 60% or more and a frequency of the small particle group B is 40% or less, and a surface tension γB (mN/m) of the small particle group B with respect to N-methylpyrrolidone satisfies an expression B1: 15.0≤γB≤40.0; a positive electrode sheet including a positive electrode active material layer formed of the composition for a positive electrode; and a non-aqueous electrolytic solution secondary battery using the positive electrode sheet.

METHOD FOR MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY AND APPARATUS FOR MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY

Nº publicación: US20260066264A1 05/03/2026

Solicitante:

HONDA MOTOR CO LTD [JP]
HONDA MOTOR CO., LTD

US_20260066264_PA

Resumen de: US20260066264A1

A method for manufacturing a membrane electrode assembly includes an applying step of applying a catalyst ink to a first surface of a polymer electrolyte membrane, and a drying step of drying the applied catalyst ink. The applying step is performed in a state where a second surface of the polymer electrolyte membrane opposite to the first surface is in contact with a swelling solvent that swells the polymer electrolyte membrane.

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