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891
resultados
Última actualización
16/08/2025 [07:10:00]
Resultados 450 a 475 de 891
Resumen de: 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
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: US2025253465A1
The present disclosure relates to materials and systems to manage thermal runaway issues in energy storage systems. Exemplary embodiments include a barrier having a mechanically compressible layer that allows fluid flow through the barrier. The present disclosure further relates to a battery module or pack with one or more battery cells and the barrier placed in thermal communication with the battery cells.
Resumen de: WO2025163536A1
An apparatus and a method for applying an end plate (T) to an internal assembly of an electrochemical cell, which is transported along a work path (C), on a target end thereof, comprising, extracting from a store (93) a single end plate (T) by an extractor device (84); a step wherein a transfer plier (163) locks said end plate (T) in said predefined position, and transfers it, keeping it locked, to a release configuration (S3) thereof, wherein the end plate (T) is released to a clamping device in an application position in proximity to said target end, by moving the end plate (T) on a single application plane.
Resumen de: WO2025163538A1
A method for attaching an end plate (T) to an internal assembly, performs the steps of retaining the end plate in a predefined position in proximity to its target end; detecting the presence and correctness of the position of the end plate (T) and sending the related data to a control unit (150) for checking thereof; attaching the end plate (T) making a connection between it and said target end; and releasing the end plate (T) which is then no longer retained.
Resumen de: WO2025163539A1
An apparatus for attaching end plates (B) to an internal assembly, wherein a plurality of internal assemblies are transported on a work path (C) with respective target ends of the end plates (T) facing in opposite directions, comprises an attaching station comprising two attaching devices (121), configured to induce a permanent and stable connection between end plates (T) and respective ends on which the end plate (T) is adhered, and positioned on opposite sides of said work path (C), and a similar second attaching device (121), wherein the attaching devices (121) are offset with respect to each other.
Resumen de: WO2025163548A1
An apparatus for packaging electrochemical cells (1) for the production of batteries, comprises a flattening device (20), configured to flatten an axial end (7, 8) of a coil (3) formed by a plurality of conductor tapes and separator tapes wound in a spiral. The flattening device (20) comprises a head (22) configured to abut at least one tab (5, 6) of the conductor tapes protruding from the axial end (7, 8) and fold it on the axial end. The head (22) includes a recess (23) and a plurality of blades (24) arranged perimetrically around the recess (23) and displaceable between an open configuration, wherein the blades (24) are distanced from a central axis (Z) of the recess (23), and a closed configuration, wherein the blades (24) are brought closer to the central axis (Z) of the recess (23), so as to abut the tab (5, 6) and fold it towards the axial end (7, 8) of the coil (3).
Resumen de: WO2025163547A1
An apparatus for packaging electrochemical cells (1) (2) for the production of batteries, comprises an application unit (20), configured to fasten at least one electrical collector (4) to an axial end of an internal assembly (3) of an electrochemical cell. The application unit (20) comprises: - a wheel (21) provided with respective gripping members (23) for retaining the internal assembly (3), - a flattening station (24), configured to flatten, on an axial end of the internal assembly, at least one tab (5a, 6a) of a conductor element (5, 6) of the internal assembly while the latter is retained on the wheel (21), - a positioning station (25), located downstream of the flattening station (24), configured to position the electric collector (4) on the axial end of the internal assembly (3) while the latter is retained on the wheel (21), and - a fastening station (26), placed downstream of the positioning station (25), configured to fasten the electric collector (4) to the end of the internal assembly (3) while the latter (3) is retained on the wheel (21).
Resumen de: US2025253406A1
This application discloses a nonaqueous electrolyte solution, a secondary battery containing the nonaqueous electrolyte solution, and an electrical device. The nonaqueous electrolyte solution includes: a compound A including a saturated five-membered ring or six-membered ring and at least one fluorine-containing substituent, where the ring contains 1 or 2 oxygen atoms as ring atoms, and a ring carbon atom connected to the oxygen atom in the ring is not directly replaced by fluorine; and a compound B including a saturated five-membered ring or six-membered ring that contains 1 or 2 oxygen atoms as ring atoms, where at least one ring carbon atom connected to the oxygen atom in the ring is directly replaced by at least one fluorine atom.
Resumen de: US2025253354A1
An apparatus for manufacturing an electrode according to an embodiment of the present disclosure includes: a supply portion supplying an electrode plate to which an electrode active material is applied; at least one thickness measuring portion measuring a thickness of the electrode plate; and at least one thickness reinforcing portion adding at least one reinforcing material to the electrode plate. An electrode assembly according to an embodiment of the present disclosure includes: a positive electrode plate to which a positive active material is applied, a negative electrode plate to which a negative active material is applied, and at least one of the positive electrode plate and the negative electrode plate includes at least one reinforcing material in at least a partial region thereof.
Resumen de: US2025253399A1
An electrolyte for a sodium secondary battery, the sodium secondary battery, and an electric device. The electrolyte for the sodium secondary battery includes a diluent, where the diluent includes an alkyl alkoxy silane compound. The sodium secondary battery includes the electrolyte described above. The electric device includes the sodium secondary battery described above.
Resumen de: US2025253349A1
A lithium-supplementing material, a preparation method therefor, and application thereof are provided. The lithium-supplementing material is applied to a cathode plate and a cell. A chemical formula of the lithium-supplementing material is Lix-naAaMyOz, where A is selected from other metal elements except lithium (Li), M is selected from at least one transition metal element, and 1
Resumen de: US2025253352A1
Disclosed herein is an electrolytic copper foil for a current collector of a secondary battery. The electrolytic copper foil ranges in elongation per unit thickness at room temperature from 1.3 to 2.0%/μm and in I(200)/I(111) at room temperature from 3.4 to 0.5, wherein I(200)/I(111) is a ratio of an intensity of a diffraction peak for (200) lattice plane to an intensity of a diffraction peak for (111) lattice plane on an XRD spectrum for a deposited plane.
Resumen de: US2025253398A1
A battery and an electricity-consumption device are provided. The battery includes a negative electrode, a separator, a positive electrode, and an electrolyte. The electrolyte includes a lithium salt and a first additive. A mass fraction w1 of the first additive in the electrolyte satisfies 0.01%≤w1≤2%.
Resumen de: US2025253463A1
A battery ejection system is disclosed. The battery ejection system comprises a pressure vessel, a battery submodule positioned at least partway in the pressure vessel and configured to release gas into the pressure vessel, and a seal of the pressure vessel configured to release in the event a pressure level in the pressure vessel exceeds a threshold pressure level. The battery submodule is configured to be ejected from an electrical connection in the event the seal is released.
Resumen de: US2025253311A1
To provide a solid-state battery configured to suppress a short circuit and a method for producing the solid-state battery. A solid-state battery, wherein the solid-state battery comprises a cathode layer, an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer; wherein the anode layer comprises at least one of a lithium metal or a lithium alloy; wherein a ratio of a thickness of the solid electrolyte layer to a thickness of the anode layer is 0.65 or more and 0.77 or less; and wherein a filling rate of the solid electrolyte layer is 82.3% or more.
Resumen de: US2025253464A1
A protective element (114) for an electrochemical energy storage unit (102), e.g. for a battery cell (104), wherein the protective element (114) comprises the following: a protective layer (116), e.g. a hot gas particle stream abrasion protection layer (118), wherein the protective layer (116) comprises a protective material (120), e.g. a hot gas particle stream abrasion protection material (122).
Resumen de: US2025253458A1
A battery holder includes a base body accommodating a battery and a cover covering the base body. One side of the base portion of the cover is provided with a limiting structure to be limited with the base body, and two elastic arms, two latching sections and an auxiliary portion located between the two elastic arms extend from another side thereof. The two latching sections engage with two locking portions of the base body to fix the cover. A surrounding wall of the base body and the auxiliary portion collectively shield a side surface of the battery, and a base portion and the elastic arms collectively shield an upper surface of the battery, thereby shielding and protecting the battery.
Resumen de: US2025253333A1
Provided are: a modified sulfide solid electrolyte containing a sulfide solid electrolyte having a BET specific surface area of 10 m2/g or more and containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom, and a compound having two or more heterocyclic rings each having a carbon atom and an oxygen atom; and a method for producing the modified sulfide solid electrolyte, which has excellent coating suitability when coated as a paste and is capable of efficiently exhibiting excellent battery performance even when a sulfide solid electrolyte having a large specific surface area is used. Also provided are an electrode combined material and a lithium-ion battery using the modified sulfide solid electrolyte.
Resumen de: US2025253308A1
A negative active particle and a preparation method therefor, a negative sheet, and a cell are provided. Embodiments of the disclosure provide a negative active particle. The negative active particle has multiple pores, and an aspect ratio α of each of the multiple pores satisfies 1≤α≤8.
Resumen de: WO2025163545A1
An apparatus (1) for packaging electrochemical cells (2) for the production of batteries, comprises a coupling unit (10), configured to combine a plurality of conductor elements (5, 6) and separator elements (7) in a predefined structure so as to form an internal assembly (3) of an electrochemical cell (2), as well as an application unit (20), configured to fasten at least one electrical collector (4) to an axial end of the internal assembly (3) so as to form a pole of the electrochemical cell (2), wherein the application unit (10) and the coupling unit (20) are synchronised with each other.
Resumen de: WO2025166151A1
A battery unit includes a unit housing enclosing a plurality of battery cells. To mitigate thermal risks and improve safety, the unit can include at least one thermal barrier arranged between the battery cells. The battery unit can also include a thermal barrier retainer arranged to protrude against a thermal barrier and secure the thermal barrier in place relative to the unit housing. Such a thermal barrier retainer can include sharp protrusions, gripping texture, or binding strips for engaging the thermal barrier.
Nº publicación: WO2025165821A1 07/08/2025
Solicitante:
24M TECH INC [US]
24M TECHNOLOGIES, INC
Resumen de: WO2025165821A1
In some aspects, an electrochemical apparatus can include an anode current collector, a first anode material disposed on a first side of the anode current collector, and a second anode material disposed on a second side of the anode current collector, the second side opposite the first side. The apparatus further includes a cathode current collector with a first cathode material disposed on a first section of the cathode current collector and a second cathode material disposed on a second section of the cathode current collector. The apparatus further includes a separator folded such that a first portion of the separator is interposed between the first anode material and the first cathode material and a second portion of the separator is interposed between the second anode material and the second cathode material.
BOPI
Sede Electrónica
