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CARBON MATERIAL, METHOD FOR PREPARING CARBON MATERIAL

Resumen de: US20260245901A1

0000 The present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes an external region and an internal region disposed on the inside of the external region, the external region being a region formed by extending for a distance of 0.25L from the surface of the particles of the carbon material towards the interior of the particles, L being a short-axis length of the particles of the carbon material; total pore area of the external region being denoted as S<1 >and total pore area of the internal region being denoted as S<2>, and S<2>>S<1>. The carbon material provided in the present application can make the secondary battery have high initial columbic efficiency, high energy density and good cycling performance.

LITHIUM RECOVERY FROM SLAGS

Resumen de: US20260242895A1

0000 A Li recovery process comprises the steps of powdering the metallurgical slag to a particle size distribution having a D50 of less than 100 μm; contacting, in an aqueous medium, the Li-containing metallurgical slag, and an alkaline Ca-compound, provided in amounts selected to obtain a molar ratio of the Ca in the Ca-compound to Li in the slag of at least 0.75, thereby obtaining a suspension; heating the suspension to a temperature of more than 80° C. for at least 30 min, thereby obtaining a leached suspension; and, separating solids from liquids in the leached suspension, thereby obtaining a leach solution containing a major part of the Li, and a solid residue containing Ca. This alkaline leaching process allows for a straightforward recovery of battery-grade LiOH from the leach solution, while consuming fewer reagents than known acidic leaching processes.

HEAT TRANSFER SUPPRESSION SHEET AND BATTERY PACK

Resumen de: US20260246022A1

A heat transfer suppression sheet contains an inorganic particle and an organic fiber. A surface of the heat transfer suppression sheet has a first region and a second region, the first region containing a stripe-like fiber bundle composed of the organic fibers, and the second region does not contain the fiber bundle. The first region may contain the stripe-like fiber bundle passing through at least three continuous virtual frames, each frame being a 5 mm square.

HEAT TRANSFER SUPPRESSION SHEET AND BATTERY PACK

Resumen de: US20260246023A1

A heat transfer suppression sheet contains at least one kind of fiber selected from an inorganic fiber and an organic fiber, and a liquid repellent substance having a surface tension smaller than a surface tension of water. The heat transfer suppression sheet may contain inorganic particles, and at least a part of the inorganic particles may be the liquid repellent substance.

SOLID-STATE BATTERY, AND SOLID-STATE BATTERY MANUFACTURING METHOD

Resumen de: US20260245870A1

A solid-state battery includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer in this order. The negative electrode layer has a negative electrode current collector and a negative electrode active material layer in this order, in a direction from the negative electrode layer toward a side of the solid electrolyte layer. When the solid-state battery is at full charge, the negative electrode active material layer has an Li layer, an Li—Mg layer, or an Li—Mg—X layer and an Li—X layer in this order, in the direction from the negative electrode layer toward the side of the solid electrolyte layer. X is at least one selected from the group consisting of Sn, Zn, and Al. The Li—X layer is formed on a surface of the solid electrolyte layer.

Method for Determining the Ageing of a Single Battery Cell

Resumen de: US20260245996A1

A method for determining an ageing of a single battery cell in a lithium-ion battery composed of a plurality of single battery cells includes recording a cell thickness change of the single battery cell over a charging state and evaluating a curve of the cell thickness change over the charging state during charging and discharging of the single battery cell. The evaluating includes determining a silicon ageing by evaluating a plateau hysteresis of the cell thickness change between a charging plateau and a discharge plateau of the curve, determining a graphite ageing by evaluating a height of the discharge plateau, and/or determining a manganese-nickel-cobalt ageing by evaluating a maximum of the cell thickness change over the charging state.

BATTERY

Resumen de: US20260245973A1

0000 A battery including: an electrode group in which a band-like positive electrode plate and a band-like negative electrode plate are wound with a separator therebetween; an electrolyte; and an outer can. The positive electrode plate, in which a positive electrode mix layer is formed on a band-like positive electrode core, comprises: a positive electrode tab which is connected to an area on one end side of the positive electrode core and not extending beyond the center in the width direction of the positive electrode plate; and a dummy tab which is connected to an area on the other end side of the positive electrode core and not extending beyond the center in the width direction of the positive electrode plate. When the positive electrode plate is viewed in the width direction, the dummy tab is disposed to overlap at least a part of the positive electrode tab.

CONDUCTIVE COMPOSITE FOR LITHIUM-ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY

Resumen de: US20260245907A1

0000 There is provided a conductive composite for a lithium-ion secondary battery, which is a composite of a polymer and a conductive material, where in a case where an aqueous dispersion of the composite is subjected to a particle diameter measurement by a dynamic light scattering method, a 50% cumulative diameter is 140 nm or more and 320 nm or less, and a 90% cumulative diameter is 700 nm or more and 3,400 nm or less.

LITHIUM SECONDARY BATTERY

Resumen de: US20260245895A1

0000 Embodiments of the present disclosure provide a lithium secondary battery. A lithium secondary battery according to exemplary embodiments includes a cathode including a cathode active material including first cathode active material particles and second cathode active material particles that are different from the first cathode active material particles and are represented by Formula 2, and an anode disposed to face the cathode and including an anode active material including a silicon-based active material.

TWO-COMPONENT THERMALLY CONDUCTIVE ADHESIVE

Resumen de: US20260242646A1

Two-component thermally conductive adhesive with high conductive filler loading.

POSITIVE ELECTRODE FOR ALL-SOLID-STATE BATTERY AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: US20260245956A1

The present disclosure relates to a positive electrode for an all-solid-state battery that can improve the performance of the battery by physically optimizing the properties of the positive electrode that directly affect the lifetime and capacity expression of the battery, and an all-solid-state battery comprising same. The positive electrode for an all-solid-state battery comprises a positive electrode active material, a solid electrolyte and a binder, wherein the positive electrode active material is included in the positive electrode more than 70% by weight.

IMPROVED BATTERY MANAGEMENT SYSTEM AND MONITORING DEVICES

Resumen de: US20260244548A1

The present disclosure provides a monitoring device operable to report sensor measurement data in a battery system. The monitoring device comprising: at least one sensor operable to obtain measurement data of one or more modules of the battery system; a receiver operable to receive, from a communications controller, a timing signal defining a transmission time of a reporting frame; and a transmitter operable to report the obtained measurement data to the communications controller; wherein the monitoring device is configured to: use the received timing signal to select a sampling time for the at least one sensor to obtain the measurement data of the one or more modules of the battery system; and transmit the obtained measurement data to the communications controller at the transmission time defined in the received timing signal.

MONOLITHIC HIGH LOADING ELECTRODES

Resumen de: US20260245986A1

0000 Provided are new electrode constructions that allow for improved energy density and robust structure, optionally without the presence of surface cracks. The electrodes as provided include an electrode active material, the electrode active material optionally comprising carbon at 75 wt % or greater, a current collector optionally incorporated into said electrode active material, and a first fluid permeable sheet layer on or in a first surface of the electrode active material. The presence of the fluid permeable sheet layer as provided herein allows for manufacture of electrodes with high levels of active material without formation of flaws, optionally surface cracking, that interrupt the energy storage or delivery characteristics of the resulting electrode.

HOLDING DEVICE

Resumen de: US20260246288A1

A holding device includes a holding portion including a first portion and a second portion, the first portion holding a first surface of a storage device, the first surface facing a first direction, the second portion holding a second surface of the storage device and facing a second direction which intersects the first direction, the holding portion holding the storage device to be detachable. The holding device includes a bottom portion which faces a placement surface when the holding device is placed. An internal space is formed inside the holding device, the internal space including a first space and a second space, the first space being defined by the first portion and the bottom portion, the second space being defined by the second portion and the bottom portion and communicating with the first space. The holding device includes, in the second space, an air-flow generator which promotes a flow of air passing through the first space and the second space.

METHOD FOR CONTROLLING BATTERY OF SERIES HYBRID VEHICLE, AND SERIES HYBRID VEHICLE

Resumen de: US20260241915A1

0000 In a series hybrid vehicle, a controller (6) perform power generation by an internal combustion engine (2) when an SOC of a battery (5) decreases to an SOC lower-limit target value, and ends the power generation when the SOC reaches an SOC upper-limit target value. When a destination is set in a car navigation system (14), a required maximum output of the battery (5) that is predicted on the route to the destination is obtained, and a severity level of the battery (5) is obtained by considering the correlation between battery output and the SOC that corresponds to the battery temperature. When the severity level is low, a low SOC lower-limit target value is selected to extend the distance and time during which EV traveling can continue.

Battery Deterioration Degree Management System

Resumen de: US20260245111A1

0000 An object of the invention is to provide a technique capable of appropriately selecting a measure with a high economic effect and an implementation timing thereof as a measure to be implemented when a secondary battery deteriorates. A battery deterioration degree management system according to the invention calculates a cost necessary for implementing a measure against a decrease of a state of health of a battery based on cost data describing a cost along with implementation of the measure, and determines the measure having a high economic effect and an implementation timing thereof based on the cost (see FIG. 4).

LITHIUM FLUORIDE, PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: US20260242231A1

0000 The present application provides a lithium fluoride, a preparation method therefor and use thereof, where a mass content of carbonate in the lithium fluoride is less than or equal to 1000 mg/kg; a D10 of the lithium fluoride is less than or equal to 10 μm, a D50 is less than or equal to 20 μm, and a bulk density ranges from 0.9 g/cm<3 >to 1.2 g/cm<3>.

ELECTRODE PLATE LAMINATING APPARATUS, BARE CELL WINDING DEVICE, AND BARE CELL WINDING METHOD

Resumen de: US20260245861A1

0000 The electrode plate laminating apparatus includes: a first laminating roller assembly, including a first laminating roller and a second laminating roller. The first laminating roller and the second laminating roller face each other. The first laminating roller and the second laminating roller are configured to sequentially stack and laminate a first separator, a first electrode plate, and a second separator; and a side separator laminating assembly, configured to laminate a portion of the first separator extending beyond a side edge of the first electrode plate with a portion of the second separator extending beyond the side edge of the first electrode plate. Embodiments solve the problem of overlapping of a first electrode plate and a second electrode plate caused by separator folding during a winding process of a first separator, the first electrode plate, a second separator, and the second electrode plate for preparing a bare cell.

Slot Die Coater

Resumen de: US20260241410A1

A slot die coater includes a die block including a first block with a manifold accommodating a coating liquid, a second block on the first block, and a coater shim between the first block and the second block. The coater shim includes a master shim including a first guide plate and a second guide plate spaced apart from each other in a first direction with the manifold therebetween. The manifold is not covered with the first guide plate and the second guide plate. A first auxiliary shim is provided on one side of the first guide plate and includes a first inner region overlapping a first edge portion of the manifold. A second auxiliary shim is provided on one side of the second guide plate and includes a second inner region overlapping a second edge portion of the manifold.

SODIUM-ION BATTERY

Resumen de: US20260245912A1

Provided is a sodium-ion battery, comprising a non-aqueous electrolyte, a positive electrode, and a negative electrode. The non-aqueous electrolyte includes an additive comprising a sodium salt additive. The positive electrode includes a positive electrode active substance layer containing a sodium-supplementing additive and a positive electrode active material. The sodium-supplementing additive is a sodium-rich transition metal oxide. The negative electrode includes a negative electrode active material. The sodium-ion battery satisfies the following relationship: 0.3≤a/(b+c)≤1.5, 5≤a≤10, 1≤b≤10, and 2≤c≤12. A total mass of the sodium-supplementing additive and the positive electrode active material is 100%, a represents a mass content of the sodium-supplementing additive, in %; b represents a mass content of the sodium salt additive in the non-aqueous electrolyte, in %; c represents a particle size of the negative electrode active material, in μm. The sodium-ion battery reduces the internal resistance of the battery and improves initial coulombic efficiency and cycle performance.

SIMPLIFIED MOUNTING OF A BURSTING MEMBRANE BY REINFORCEMENT

Resumen de: US20260246063A1

A membrane arrangement includes a bursting membrane and at least one reinforcing frame, wherein the reinforcing frame is connected to the bursting membrane, wherein the reinforcing frame connected to the bursting membrane is configured to be inserted into a cell housing on the inside and to be connected to the cell housing on the outside by a thermal joining process, and a related method includes connecting a bursting membrane to a battery cell housing and a battery cell with a membrane arrangement.

LITHIUM SECONDARY BATTERY ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: US20260245964A1

0000 The present disclosure relates to a lithium secondary battery electrolyte comprising a phosphorofluoridate compound represented by chemical formula 1 and a lithium secondary battery comprising same. The lithium secondary battery comprising the electrolyte according to one embodiment produces an output that does not degrade even under high voltage, and has excellent lifespan characteristics, a high capacity recovery rate at high temperature, and excellent storage stability. In addition, the lithium secondary battery comprising the electrolyte according to one embodiment has excellent output characteristics resulting from reduced internal resistance of the battery, and exhibits excellent cycle characteristics and stability even when charged under high temperature and high voltage.

METHOD OF DETERMINING RECYCLABILITY OF ELECTRODE OF SECONDARY BATTERY AND PROGRAM FOR DETERMINING RECYCLABILITY OF ELECTRODE OF SECONDARY BATTERY

Resumen de: US20260243838A1

The method determines the degree of deterioration of an electrode to be recycled. The method includes: estimating characteristic parameters of the secondary battery subject to determination at the time of determination (step S1); obtaining the relationship between the electrolyte diffusion coefficient and the discharge capacity (step S2); based on the relationship between the electrolyte diffusion coefficient and the discharge capacity, determining a threshold value Dth of electrolyte diffusion coefficient (step S3); and comparing the threshold value Dth and a threshold value Dth0 of electrolyte diffusion coefficient before deterioration obtained in advance for the secondary battery subject to determination or a secondary battery of the same type as the secondary battery subject to determination, and, based on the difference between the threshold value Dth and the threshold value Dth0, ΔDth=Dth−Dth0, classifying the secondary battery subject to determination (step S4).

Holding Mechanism for Electrode Laminate

Resumen de: US20260246035A1

A holding structure for a laminated body includes the laminated body in which a plurality of electrodes are laminated, and a holder that holds the laminated body to fix the plurality of electrodes to one another. The holder includes an upper cover that covers an upper surface of the laminated body and covers left and right side-surfaces of the laminated body, and a lower cover that covers a lower surface of the laminated body and covers the left and right side-surfaces of the laminated body. The upper cover and the lower cover are joined together on the left and right side-surfaces of the laminated body.

WINDING MECHANISM AND WINDING DEVICE

Nº publicación: US20260242171A1 20/08/2026

Solicitante:

CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Resumen de: US20260242171A1

A winding mechanism and a winding device. The winding mechanism includes at least two sets of unwinding mechanisms and a first clamping assembly. The unwinding mechanism is configured to unwind and convey an electrode sheet and is capable of independently conveying the electrode sheet, and the unwinding mechanism includes an electrode sheet starting end and an electrode sheet free end. The first clamping assembly is configured to enable the electrode sheet free end of any of the unwinding mechanisms to be conveyed to a next process. Each set of unwinding mechanism of the winding mechanism is capable of operating independently, and the electrode sheet free end of each unwinding mechanism is conveyed to a next process through the first clamping assembly.