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1196
results.
Updated on
18/08/2025 [07:12:00]
Results 850 to 875 of 1196
Absstract of: US2025253337A1
The present invention pertains to a binder for Li-ion battery positive electrode, to a method of preparation of said electrode and to its use in a Li-ion battery. The invention also relates to the Li-ion batteries manufactured by incorporating said electrode.
Absstract of: US2025253384A1
Systems and methods for manufacturing a battery are disclosed. One system may include: a first cutter configured to cut a first electrode sheet into a first electrode portion having a first length, the first electrode sheet comprising a first coated portion; a second cutter configured to cut a second electrode sheet into a second electrode portion having a second length, the second electrode sheet comprising a second coated portion; a winder configured to wind the first electrode portion, the second electrode portion, and a separator to form an electrode assembly; and an identification information assigning device configured to assign identification information to the electrode assembly based on: a cut count value of the first electrode sheet and/or a cut count value of the second electrode sheet; and/or a first pattern indication of the first electrode sheet and/or a second pattern indication of the second electrode sheet.
Absstract of: US2025253446A1
A battery cooling system may include a battery housing configured to be coupled to a chassis of the battery electric vehicle. A battery cooling system may include a plurality of battery cells positioned within the battery housing, each of the plurality of battery cells including a pole. A battery cooling system may include a liquid cooling plate arranged in thermal communication with the poles of the plurality of battery cells. A battery cooling system may include a liquid cooling system providing coolant to the liquid cooling plate. A battery cooling system may include an airflow passageway defined between the battery housing and the plurality of battery cells. A battery cooling system may include a vehicle heating, ventilation, and air conditioning (HVAC) system providing cooled air to the airflow passageway.
Absstract of: US2025253382A1
A battery end plate includes a cap, a current collector, and a terminal. The cap has an interior face, an exterior face opposite the interior face, and a top side extending between the interior face and the exterior face. A passageway extends in a vertical direction into the top side and a slot extends in a longitudinal direction perpendicular to the vertical direction into the interior face. The passageway communicates with the slot between the interior face and the exterior face. The current collector has a tab and is disposed on the interior face; the tab extends into the slot. The terminal is disposed in the passageway and is electrically connected with the tab of the current collector.
Absstract of: US2025253392A1
Lithium-containing polycrystalline ceramic sheets include grains having an average grain size of less than 5 μm, a relative density greater than 90%, and a thickness of up to 200 μm. In aspects, the lithium-containing polycrystalline ceramic sheets include an outer edge of the sheet that has no height variations greater than 1 mm from baseline in a perimeter trace. In aspects, the lithium-containing polycrystalline ceramic sheets include microstructural features of an outer edge of the sheet are no greater than about 1⁄3 the thickness of the sheet. In aspects, the lithium-containing polycrystalline ceramic sheets include an outer edge of the sheet that is enriched in lithium relative to a bulk of the sheet.
Absstract of: US2025253381A1
The embodiments of the application provide a winding device and a winding method. The winding device includes a winding member, a traction member, a detection mechanism and an adjustment mechanism. The winding member is used to wind an electrode sheet and a separation membrane. The traction member is used to pull the separation membrane passing through the winding member, and the traction member is configured to release the separation membrane when the winding member winds the electrode sheet and the separation membrane. The detection mechanism is used to sense a tension change of the separation membrane located between the winding member and the traction member. The adjustment mechanism is configured to adjust a tension of the separation membrane according to the tension change of the separation membrane sensed by the detection mechanism.
Absstract of: US2025253423A1
The present invention relates to a method for separating the electrode materials from the current collector in a battery electrode, said method comprising: a—providing at least one electrode said electrode comprising a current collector and a layer of electrode material adhered onto said current collector, said layer of electrode material comprising electro active materials in powder form and a binder b—contacting said electrode to a gas or a supercritical fluid at a pressure of (60) to 300 bar, c—rapidly decreasing the pressure of said gas or supercritical fluid of at least (60) bar within (30) seconds or less thereby causing rapid decompression of said gas.
Absstract of: US2025253448A1
Provided are a battery cell, battery, and an electrical equipment. The battery cell includes a housing and a first insulating member. The housing provides a welding mark region. The first insulating member is arranged on an outer surface of the housing, and the first insulating member provides a first thickened region, wherein the first thickened region covers at least a portion of the welding mark region. This reduces the risk of the welding mark region piercing through the first insulating member, which could cause insulation failure of the battery cell. Thus, the insulation performance of the battery cell is improved.
Absstract of: US2025253377A1
The invention relates to an electrochemical cell assembly including a first end plate assembly, a stack of cell repeat units, and a second end plate assembly. The stack is held in a compressed state between the first end plate assembly and the second end plate assembly. The first end plate assembly and/or the second end plate assembly each include an end plate. The electrochemical cell assembly includes an insulation plate located between the end plate and the stack. At least one through-hole is provided in the insulation plate and a sealing insert is provided in the at least one through-hole of the insulation plate, the sealing insert defining a fluid pathway along the stacking direction. The invention also relates to an end plate assembly and a method of manufacturing an electrochemical cell assembly.
Absstract of: US2025253379A1
Provided is a battery cell stacking jig for stacking a plurality of battery cells of a secondary battery. Additionally, the battery cell stacking jig can include a fork supporting both ends of the battery cells so that the plurality of battery cells are seated therein, and the fork is disposed in a plurality at a certain distance apart with respect to a horizontal direction. The battery cell stacking jig can further include a gripper movably provided on an upper portion of the fork, and disposed in a plurality with respect to the horizontal direction, and being configured to load a battery cell perpendicularly to the fork such that the battery cell is seated in the fork, and a transfer connected to the plurality of grippers and configured to move the grippers to the upper portion of the fork.
Absstract of: US2025253442A1
A battery includes a plurality of cells and a plurality of thermal barriers. The plurality of cells is configured to store electrical energy. Each of the thermal barriers is disposed between adjacent cells of the plurality of cells. Each thermal barrier includes solid regions and defines cutouts between the solid regions. Each solid region and each cutout within each thermal barrier are aligned along a plane. Each solid region and each cutout within each thermal barrier have a dimension that is perpendicular to the plane and extends between the corresponding adjacent cells.
Absstract of: US2025253461A1
Disclosed are a battery box and a battery pack applying the same. The battery box includes a bottom plate, a lateral plate, a lower support, a partition, and an upper support, in which a top surface of the bottom plate is provided with a first protrusion, the lateral plates are provided perpendicular to the bottom plate on two opposite edges of the bottom plate, an interior side of the lateral plate is arranged with a first snap-block and a second snap-block along an extension direction, two opposite ends of the lower support are provided on the first snap-block respectively, two opposite ends of the partition are fixedly connected to the second snap-block respectively, a top of the partition is provided with a second protrusion, and two opposite ends of the upper support are provided on the second snap-block respectively.
Absstract of: US2025253467A1
A battery device includes a cell assembly, including a first battery cell and a second battery cell, stacked in a first direction. The first battery cell and the second battery cell respectively include a receiving portion in which an electrolyte and an electrode assembly are received within a case, and a plurality of extension portions protruding outwardly from the receiving portion in the first direction. The second battery cell is disposed to contact at least one of the extension portions of the first battery cell.
Absstract of: US2025253314A1
The 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 between 30% and 70%, including 30% and 70%; and a surface area with at least partially applied first surface coating comprising at least one of the elements of Li, B, Al, Si, P, Ti, Zr, Nb and/or W. Furthermore, the disclosure relates to a method for manufacturing such a surface-coated silicon-carbon composite material, to an anode electrode and to an electrochemical storage device.
Absstract of: US2025253402A1
An electrochemical apparatus includes a positive electrode plate and an electrolyte. The positive electrode plate includes a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material. The positive electrode active material includes a lithium composite oxide. The lithium composite oxide includes the lithium element and at least one element selected from the cobalt element, the nickel element, the manganese element, and the aluminum element. A surface layer of the positive electrode active material has a rock salt phase structure and includes the tungsten element. Based on a total mass of the positive electrode active material, a mass percentage of the tungsten element is B, where 0.01%≤B≤1%. The electrolyte includes an ionic liquid represented by a formula R:
Absstract of: US2025253410A1
The present disclosure provides an electrode stack with a protective member disposed on a side section, which is resistant to peeling, as well as a battery comprising the electrode stack which is resistant to interference between the collector terminal and protective member and also has satisfactory structural efficiency. The electrode stack 10 of the disclosure is formed by stacking a plurality of preliminary electrode stacks 10′. The locations of the third and/or fourth side sections of those do not mutually match in the in-plane direction of the electrode stack, (i) the protective member 20 extends at least partway between the third side section of the innermost preliminary electrode stack and the third side section of the outermost thereof, and/or (ii) the protective member extends at least partway between the fourth side section of the innermost preliminary electrode stack and the fourth side section of the outermost thereof.
Absstract of: DE102025101770A1
Die vorliegende Offenbarung stellt einen Elektrodenstapel mit einem an einem Seitenbereich angeordneten schützenden Bauteil bereit, der gegen Ablösung beständig ist, sowie eine Batterie, die den Elektrodenstapel aufweist, der gegen Interferenzen zwischen dem Sammelanschluss und dem schützenden Bauteil beständig ist und außerdem eine zufriedenstellende strukturelle Effizienz aufweist. Der Elektrodenstapel 10 der Offenbarung wird durch Stapeln einer Vielzahl von vorläufigen Elektrodenstapeln 10' ausgebildet. Die Positionen der dritten und/oder vierten Seitenbereiche stimmen in Richtung in der Ebene des Elektrodenstapels nicht überein, (i) das schützende Bauteil 20 erstreckt sich zumindest teilweise zwischen dem dritten Seitenbereich des innersten vorläufigen Elektrodenstapels und dem dritten Seitenbereich des äußersten davon, und/oder (ii) das schützende Bauteil erstreckt sich zumindest teilweise zwischen dem vierten Seitenbereich des innersten vorläufigen Elektrodenstapels und dem vierten Seitenbereich des äußersten davon.
Absstract of: DE102025103299A1
Eine Batterie beinhaltet eine Vielzahl von Zellen und eine Vielzahl von Wärmebarrieren. Die Vielzahl von Zellen ist dazu konfiguriert, elektrische Energie zu speichern. Jede der Wärmebarrieren ist zwischen benachbarten Zellen der Vielzahl von Zellen angeordnet. Jede Wärmebarriere beinhaltet feste Regionen und definiert Aussparungen zwischen den festen Regionen. Jede feste Region und jede Aussparung innerhalb jeder Wärmebarriere sind entlang einer Ebene ausgerichtet. Jede feste Region und jede Aussparung innerhalb jeder Wärmebarriere weisen eine Abmessung auf, die senkrecht zu der Ebene ist und sich zwischen den entsprechenden benachbarten Zellen erstreckt.
Absstract of: DE102024116040A1
Eine Batterieanordnung eines Fahrzeugs umfasst eine Batterie, die eine Mehrzahl von Batteriezellen und eine Mehrzahl von Kältemittelsprühdüsen aufweist, die funktionell mit einem Heizungs-, Lüftungs- und Klimatisierungs- (HVAC)-System des Fahrzeugs verbunden sind. Die Mehrzahl von Kältemittelsprühdüsen sind so konfiguriert, dass sie im Falle der Detektion eines thermischen Durchbruchs einen Strom von Kältemittel aus dem HVAC-System auf die Mehrzahl von Batteriezellen sprühen. Ein Verfahren zum Kühlen einer Batterieanordnung eines Fahrzeugs umfasst das Detektieren eines thermischen Ereignisses an der Batterieanordnung, Umleiten eines Stroms von Kältemittel aus einem Heizungs-, Lüftungs- und Klimatisierungs- (HVAC)-System als Reaktion auf die Detektion des thermischen Ereignisses und Sprühen des Stroms von Kältemittel aus einer Mehrzahl von Kältemittelsprühdüsen auf eine Mehrzahl von Batteriezellen der Batterieanordnung, um die Batterieanordnung zu kühlen.
Absstract of: DE102024108810A1
Aspekte der Offenbarung umfassen eine bipolare Elektrodenauslegung für Metallionensekundärbatteriezellen und Verfahren zur Herstellung derselben. Ein beispielhaftes Fahrzeug umfasst einen Elektromotor und einen Batteriepack, der elektrisch an den Elektromotor gekoppelt ist. Der Batteriepack umfasst eine Batteriezelle, die einen bipolaren Stromkollektor, eine Anodenüberzugsschicht, die auf einer ersten Oberfläche des bipolaren Stromkollektors gebildet ist, und eine Kathodenüberzugsschicht umfasst, die auf einer zweiten Oberfläche des bipolaren Stromkollektors gebildet ist. Die Batteriezelle umfasst ferner einen Rolle-zu-Rolle-Ionenkanalblocker, der entlang einer ersten Kante des bipolaren Stromkollektors angeordnet ist, und einen Lage-für-Lage-Ionenkanalblocker, der entlang einer zweiten Kante und einer dritten Kante des bipolaren Stromkollektors orthogonal zu der ersten Kante angeordnet ist. Die Batteriezelle umfasst ferner einen ionisch leitenden Gelelektrolyt, der über der Anodenüberzugsschicht und der Kathodenüberzugsschicht gebildet ist.
Absstract of: US2025253312A1
An all-solid-state lithium-ion secondary battery includes a positive electrode, a negative electrode, and a solid electrolyte between the positive electrode and the negative electrode. The negative electrode has a negative electrode current collector and a negative electrode active material layer that comprises a carbon material and Ag.
Absstract of: US2025253355A1
The present application provides a negative current collector and a preparation method thereof, a sodium secondary battery, and an electrical device. The negative current collector includes a matrix and a functional layer disposed on at least one side of the matrix and includes a multifunctional additive. The multifunctional additive includes NaxMNy*zH2O, where: M includes an atom capable of forming an alloy with Na; N includes at least one of atom O, atom S, or atom Se; and 0
Absstract of: US2025253411A1
An electrode assembly including: a first electrode plate including a first electrode substrate having a first electrode active material layer thereon; a first separator; a second electrode plate including a second electrode substrate having a second electrode active material layer thereon; and a second separator. The first electrode plate, the first separator, the second electrode plate, and the second separator are sequentially stacked and wound about a winding axis, and the first electrode substrate, the first separator, and the second separator extend at least one turn beyond a distal end of the second electrode plate in the wound electrode assembly.
Absstract of: US2025253339A1
The disclosure aims to provide a fluororesin for use in electrochemical device binders which enables formation of an electrode mixture sheet with high strength, and an electrochemical device binder, an electrode mixture, an electrode, and a secondary battery. Provided is a fluororesin for use in electrochemical device binders, the fluororesin including a tetrafluoroethylene unit and a hexafluoropropylene unit and being expandable.
Nº publicación: US2025253313A1 07/08/2025
Applicant:
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Absstract of: US2025253313A1
The present disclosure provides an evaluation method and production method for a slurry for batteries designed to obtain a coated film with satisfactory properties, a method for producing a battery that includes producing the slurry for batteries, and a slurry for batteries that can yield a coated film with satisfactory properties. The method of the disclosure for evaluating a slurry for batteries comprises measuring the relaxation time of the slurry using a TDNMR apparatus to evaluate the dispersity of specific components. The method of the disclosure for producing a slurry for batteries comprises evaluating the dispersity of the specific component.
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