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149
resultados
Última actualización
10/02/2026 [06:58:00]
Resumen de: US20260038877A1
A lithium ion secondary battery includes a positive electrode including a positive electrode active material, a negative electrode, and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution includes LiPF6 and a lithium imide salt as an electrolyte, and includes a carbonate-based solvent as a solvent, the lithium ion secondary battery includes or does not include a surplus electrolyte solution, the ratio of the positive electrode capacity to the negative electrode capacity is adjusted to less than 1, the nominal voltage is adjusted to less than 3.6 V, and the content of lithium imide salt included in the non-aqueous electrolyte solution per unit battery capacity and the ratio of the positive electrode capacity to the negative electrode capacity are adjusted to satisfy a specific relationship.
Resumen de: US20260038874A1
Example embodiments include a solid electrolyte layer for an all-solid-state rechargeable battery, and an all-solid-state rechargeable battery including the solid electrolyte layer. The solid electrolyte layer for an all-solid-state rechargeable battery include a sulfide-based solid electrolyte, and a composite of a plasticizer that is solid at room temperature and liquid at greater than or equal to about 60° C. and a lithium salt, and a content of the composite is in a range of about 1 wt % to about 4 wt % based on 100 wt % of the solid electrolyte layer.
Resumen de: US20260038908A1
A secondary battery according to embodiments of the present invention includes an electrode assembly including cathodes and anodes repeatedly stacked, a case configured to accommodate the electrode assembly, and a positive temperature coefficient (PTC) heating sheet disposed between the case and the outermost surface of the electrode assembly. Accordingly, operation stability and output properties of the secondary battery may be improved.
Resumen de: US20260038899A1
The invention relates to a method for recycling rechargeable batteries, especially lithium rechargeable batteries and/or sodium rechargeable batteries containing a conducting salt dissolved in a conducting salt solvent, comprising the steps: (a) short-circuiting the rechargeable batteries until at least 75% of the galvanic elements have a regeneration cell voltage of at most 0.3 volts, particularly at most 0.2 volts, and (b) subsequently comminuting the rechargeable batteries, thereby obtaining comminuted material.
Resumen de: US20260038809A1
A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a binder, and an additive solution or conductive paste, the additive solution or conductive paste being in an amount less than 5% by weight of the mixture and including a polymer additive and a liquid carrier, as well as a conductive material in the case of a conductive paste. The mixture may have total solid contents greater than 95% by weight. Preparing the mixture may include mixing the additive solution or conductive paste with the electrode active material to lubricate the electrode active material and subsequently adding and mixing in the binder. The method may further include subjecting the mixture to a shear force and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film.
Resumen de: US20260038820A1
A main object of the present disclosure is to provide an electrode layer of which resistance increase due to charge and discharge is little. The present disclosure achieves the object by providing an electrode layer including an electrode active material including a Si element, and a binder including an unsaturated bond, wherein when the binder is dyed by Os dyeing and then an overlapping degree D of the Si element and the Os element is calculated based on an element mapping image obtained by a SEM-EDX measurement, the D is larger than 0.047.
Resumen de: US20260038816A1
An anode active material for a lithium secondary battery based on some embodiments of the disclosed technology includes composite particles that include: carbon-based particles including pores; and a silicon-containing coating formed on a surface of the carbon-based particles, wherein a weight increase start temperature of the composite particle, measured by thermogravimetric analysis (TGA) at a heating rate of 10° C./min, is from 440° C. to 580° C.
Resumen de: US20260038812A1
An electrode is provided. The electrode includes an electrode material comprising a plurality of electrode active material particles. Each of the plurality of electrode active material particles includes a core, a first coating layer formed on a first surface of the core, a shell formed on a second surface of the first coating layer, and a second coating layer formed on a third surface of the shell. The core is formed of a lithium manganese iron phosphate material having the formula LiMnyFe1-yPO4, where 0<y<1. The first coating layer includes first carbon nanofibers. The shell includes LiFePO4. The second coating layer includes second carbon nanofibers.
Resumen de: US20260038995A1
Disclosed is a battery, which includes an electrode assembly; a battery housing having an open portion formed at one side and a closed portion formed at a side opposite to the open portion and configured to accommodate the electrode assembly through the open portion; and an insulator having a cover portion interposed between the closed portion and the electrode assembly and a side portion interposed between an outer circumference of the electrode assembly and a sidewall of the battery housing, the side portion having a stress relieving portion formed in a predetermined depth from an end thereof.
Resumen de: US20260038804A1
A carbon nanotube dispersion solution, a slurry for manufacturing an electrode containing carbon nanotubes, and a secondary battery fabricated using the same are provided. The performance of a secondary battery comprising carbon nanotubes can be improved by controlling the particle size and amount of the carbon nanotubes.
Resumen de: US20260038865A1
An electrode supply device, an electrode assembly manufacturing apparatus using the same. The electrode supply device includes: a magazine part; an electrode pick-up part; and an air supply part. An electrode supply method, and an electrode assembly manufacturing method using the same. The electrode supply method includes: lowering a pressure on an upper surface of a first electrode, which is disposed at an uppermost side among a plurality of electrodes stacked in a magazine part, and also lowering a pressure on a lower surface of a second electrode adjoining the first electrode; and picking up the first electrode to transfer and supply the first electrode to a stack table. The lowering of the pressure on the upper surface of the first electrode and on the lower surface of the second electrode includes injecting air toward the upper surface of the first electrode and the lower surface of the second electrode.
Resumen de: US20260038872A1
In one aspect, the present invention provides a solid-state electrolyte material. The solid-state electrolyte material comprises a composition of Formula (XX), (XX-A), (XX-B), (XX-C), (I), (Ia), and/or (Ib), as described herein. Another aspect provides a method of making a green body. A further aspect provides a method of making a sintered solid-state electrolyte material.
Resumen de: US20260038914A1
A battery module includes a plurality of battery cells, a housing accommodating the plurality of battery cells, and a protective layer on an inner surface of the housing to face the plurality of battery cells, the protective layer including a thermal insulation material. In an example, each of the plurality of battery cells may include an electrode assembly, a case accommodating the electrode assembly, and a cap plate including a vent, the cap plate being coupled to an opening of the case, wherein the protective layer faces the vent.
Resumen de: US20260038871A1
Solid lithium-ion ceramic electrolyte membranes have an average thickness of less than 200 micrometers. A constituent electrolyte material has an average grain size of less than 10 micrometers. The solid lithium-ion ceramic electrolyte is free-standing. Alternatively, solid lithium-ion electrolyte membranes have a composition represented by Li1+x−yMxM′2−x−yM″y(PO4)3, where M is a 3+ ion, M′ is a 4+ ion, M″ is a 5+ ion, 0≤x≤2 and 0≤y≤2.
Resumen de: US20260038918A1
The present invention relates to an apparatus for molding a secondary battery pouch and a secondary battery pouch manufactured therethrough, and more particularly, to an apparatus for molding a secondary battery pouch, which allows a pouch bridge part to be unfolded well when the pouch is folded so as to prevent cell damage, improve cell positioning precision, and prevent wrinkles on a cell sealing part, thereby producing a secondary battery having excellent quality, and a secondary battery pouch manufactured therethrough.
Resumen de: US20260038869A1
The present disclosure relates to a rechargeable lithium battery module including two or more cell structures and a polymer-metal composite film between the cell structures, wherein the polymer-metal composite film includes a polymer film; and metal coating layers on both surfaces of the polymer film, and the polymer-metal composite film is exposed longer than the cell structure in a height direction or a width direction of the cell structure.
Resumen de: US20260038806A1
A battery pack for powering a power tool includes: a housing including a tool interface detachably coupled to the power tool; a terminal assembly electrically connected to the power tool; and a battery unit including a positive electrode plate, where the positive electrode plate includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material is lithium iron manganese phosphate. The energy density of the battery pack is greater than or equal to 50 Wh/kg. The capacity loss of the battery pack is less than or equal to 15% after one thousand charge-discharge cycles are performed at room temperature, where each of the charge-discharge cycles is defined as the process in which the battery pack is discharged from a full voltage to a cut-off voltage and is charged from the cut-off voltage to the full voltage.
Resumen de: US20260038994A1
A cap assembly, including a current interruption device, and a cap down plate electrically connected to the current interruption device, wherein the current interruption device includes a metal plate, a connection located in a center of the metal plate, and at least one bridge along a perimeter of the connection, and the at least one bridge brakes if a current equal to or greater than a set value flows.
Resumen de: US20260038808A1
The invention relates to lithium-based battery systems and, more particularly, to electro-spinable solution compositions, electro-spun sulfur-polymer fibers, e.g., wires and yarns, and their use in preparing high performance sulfur mattes, e.g., electrodes, for lithium-sulfur batteries with potential applications in small-scale mobile devices. The sulfur-polymer fibers have nanoscale dimensions and yarn-like morphology. The sulfur-polymer fibers can be prepared by co-dissolving sulfur and polymer in a solvent for forming the electro-spinable solution, and electrospinning the solution. The electrospun fibers can be used to form a composite that includes alternating layers of the electrospun fibers and polymer on a current collector.
Resumen de: US20260038939A1
A battery case including an electrochemical cell inside the case. A first face of the battery case includes a first, a second and a third band, which are mutually distinct, the first, the second and the third band being delimited by two parallel straight lines passing entirely through the face of the case. The first face of the battery case includes a fluid inlet opening situated within the first band, a fluid outlet opening situated within the second band, and a first and second opening situated within the third band, the first and the second opening forming an interface with a first and a second pole of the electrochemical cell. The present invention also relates to a connection beam for the battery cases and to an electric battery including the beam and at least two battery cases.
Resumen de: US20260038805A1
A negative electrode for a lithium secondary battery according to the present invention comprises a negative electrode current collector layer, and a negative electrode active material layer disposed on one or both surfaces of the negative electrode current collector layer and including a negative electrode active material layer composition, wherein the negative electrode active material layer composition includes a silicon-based active material, the negative electrode active material layer has a porosity of 10-50%, and an electrical conductivity of the negative electrode for a lithium secondary battery satisfies a range of 1 S/cm2 or greater and 3,000 S/cm2 or less.
Resumen de: US20260038903A1
A cooling system includes a compressor that compresses a refrigerant, a heat exchanger that cools the refrigerant from the compressor, heat exchangers that use the refrigerant cooled by the heat exchanger, a refrigerant passage that supplies the refrigerant from the heat exchanger to a battery and returns this refrigerant to the compressor, and an expansion valve provided on the refrigerant passage upstream of the battery, and processing circuitry maintains an opening degree of the expansion valve constant when the battery temperature is within a first region, increases the opening degree of the expansion valve as the battery temperature rises when the battery temperature is within a second region, and maintains the opening degree of the expansion valve at a large opening degree when the battery temperature is within a third region.
Resumen de: US20260038866A1
A columnar secondary battery includes an electrode assembly. The electrode assembly includes an electrode plate. The electrode plate includes a current collector and a first material layer. The first material layer is located on a surface of the current collector facing away from a winding center of the electrode assembly. Along a length direction of the electrode plate and along a winding direction of the electrode assembly, the first material layer includes a first section and a second section connected sequentially. Based on a length of the first material layer, a length of the first section accounts for a proportion of L, 2%≤L≤20%. A plurality of protrusions are formed on a surface of the first section alone on the electrode plate.
Resumen de: US20260038870A1
A nonaqueous electrolyte secondary battery according to the present disclosure includes an electrode group including a positive electrode 5, a negative electrode 6, and a separator 7, the electrode group having a wound structure. The electrode group satisfies at least one configuration selected from the group consisting of the following (A) and (B): (A) the electrode group includes an insulating protective tape 9 at at least one end portion of the negative electrode 6 in the longitudinal direction of the negative electrode 6, the insulating protective tape 9 being adhered to a region 60 extending from a face of a negative electrode active material layer 6b facing the separator 7 to an exposed portion of a negative electrode current collector 6a via an end face of the negative electrode active material layer 6b; and (B) the electrode group includes an insulating protective tape in a region of the negative electrode 6 facing a positive electrode lead portion of the positive electrode 5, the insulating protective tape being adhered to the face of the negative electrode active material layer 6b facing the separator 7. The substrate of the protective tape 9 is a microporous resin-based membrane that has a compression deformation ratio of 30% or more and 50% or less when a load of 50 kg/cm2 is applied thereto.
Nº publicación: US20260038913A1 05/02/2026
Solicitante:
VALEO SYSTEMES THERMIQUES [FR]
VALEO SYSTEMES THERMIQUES
Resumen de: US20260038913A1
The invention relates to a compartment designed to receive a part capable of giving off heat during its operation, in particular the part being an electrochemical energy storage module. The compartment includes a lid, a tray provided with a bottom wall on which the part can be placed, and a side wall designed to be assembled with the lid that closes the tray, the bottom wall and the side wall being in a single piece. The compartment further includes an outer plate which is designed to be assembled on an outer assembly face of the tray or of the lid, in order to form at least one flow channel for a heat transfer fluid.
BOPI
Sede Electrónica
