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OPTICAL METHOD FOR DETERMINING THE POSITION AND/OR THE GEOMETRY OF AN ELECTRODE SHEET IN AN ELECTRODE-SEPARATOR ASSEMBLY

Resumen de: WO2025195713A1

The invention relates to an optical method for determining the position and/or the geometry of an electrode sheet in an electrode-separator assembly. The method according to the invention involves using the evaluation of optical images (100) during the stacking of an electrode-separator assembly (1) (ESV) to determine the location and position of relevant regions of electrode and separator sheets (13, 14) during the stacking process. The positions (E) and coordinates (14-4) determined in this way can then be used in a completed ESV (1) to detect changes in position of individual electrode sheets (14) and/or separator sheets (13) in the ESV (1) even after they have been laid down. As a result, this method allows inline quality control to be carried out by means of purely optical imaging means, which significantly accelerates and simplifies the stacking process of an ESV on a production line.

DEVICE FOR ELECTRICALLY CONTACTING BATTERY CELLS

Resumen de: WO2025195712A1

The invention relates to a device for electrically contacting battery cells (1), comprising battery cells (1) which are arranged next to each other transversely to the longitudinal axis (3) of the device in a main part (2) and which are contacted by an electrical conductor (5). The aim of the invention is to prevent damage to the conductor or the contacting of the conductor caused by operational changes in the size of individual battery cells in the event of vibration-related force factors and a sufficient tolerance compensation at the same time. The aim of the invention is to prevent damage to the conductor or the contacting of the conductor caused by operational changes in the size of individual battery cells in the event of vibration-related force factors and a sufficient tolerance compensation at the same time.

Schaltung, Verfahren und System zur Symmetrierung der Spannung von Speichereinheiten

Resumen de: DE102024108492A1

Die vorliegende Erfindung betrifft eine Schaltung, ein Verfahren und ein System zur Symmetrierung der Spannung von in Reihe geschalteten Speichereinheit (BT). Die Schaltung entspricht einem Leiternetzwerk, bei dem horizontalen Schalter (SH) die Sprossen der Leiter bilden, auf dem ersten Holm der Leiter zwischen den Sprossen jeweils eine Speichereinheit (BT) angeordnet ist und auf dem zweiten Holm zwischen den Sprossen jeweils ein vertikaler Schalter (SV) angeordnet ist. Durch Schalten der horizontalen Schalter (SH) und vertikalen Schalter (SV) können einzelne Speichereinheiten (BT) mit einer Symmetrierungsquelle (SY) verbunden werden, so dass diese die Spannung der verbundenen Speichereinheit (BT) anpasst, wodurch die Spannung der Speichereinheiten (BT) in der Reihenschaltung symmetriert wird.

RECHARGING SYSTEM OF A BATTERY AND RELATED RECHARGING METHOD

Resumen de: WO2025196602A1

A recharging method and system (1) of a battery (2) is disclosed, said system (1) comprises: a reservoir (3) containing a liquid selected from demineralized water, distilled water, water, aqueous solution containing a water-miscible compound and a mixture of demineralized water or distilled water or water and silica powder particulates; pumping means (4) which are arranged and configured to pump the liquid from the reservoir (3); a chamber (5) containing zeolite (Z) in solid form and in fragments; a plurality of nozzles (6) which are arranged inside the chamber (5) and which are configured to be activated to dispense the liquid into the chamber (5) so as to distribute it among the fragments of said zeolite (Z), so that the latter absorbs the liquid to release heat; a plurality of thermoelectric modules (7) which are arranged to laterally surround the chamber (5) to absorb the heat released by said zeolite (Z) and convert it into electrical energy; an insulating material layer (8) which is arranged to laterally surround the chamber (5); heating means (9) which are configured to be activated, once the nozzles of the plurality of nozzles (6) are deactivated, to generate heat in the chamber (5) in such a way that it distributes among the fragments of said zeolite (Z) so that the absorbed liquid evaporates from the latter; a hydraulic feed circuit (10) which extends to connect the reservoir (3), the pumping means (4) and the chamber (5); an electrical power supply circuit (11) whi

AN ANODE ACTIVE MATERIAL BASED ON MIXED OXIDES OF NB2O5

Resumen de: WO2025198828A1

An active anode material for use in a battery in which the active anode material represents mixed oxides of titanium, molybdenum, and niobium corresponding to the formula: TixNbyMO2-yOa wherein x, y, and a represent molar amounts with x ≥ 0.5, y ≤ 1.7, x/y ≥ 0.5, and a > 6.0.

SEPARATOR FOR A LITHIUM-ION BATTERY

Resumen de: WO2025196383A1

The present invention relates to an electrochemical device comprising an electrolytic composition and a separator consisting of at least one fluorinated polymer resin, characterized in that the σ*e/G ratio is between 0.02 and 200.

WATER-BASED BINDER FOR COATING AN ANODE CURRENT COLLECTOR FOR A SECONDARY LI-ION BATTERY, PROCESS TO MAKE THE BINDER, ANODE ACTIVE MATERIAL SLURRY AND ANODE COMPRISING THE BINDER, AS WELL AS USE OF THE BINDER

Resumen de: WO2025195897A1

The present invention relates to a water-based binder (1) for coating an anode current collector for a secondary Li-ion battery, wherein the binder (1) comprises an emulsion polymerizate (2) being a copolymerizate of a) 35 to 70 wt.% of styrene, b) 20 to 47 wt.% of aliphatic conjugated diene-based monomer, c) 1 to 15 wt.% of (meth)acrylonitrile, d) 0.1 to 5 wt.% of itaconic acid and/or fumaric acid, e) 0 to 20 wt.% of one or more of auxiliary monomer 1, and1 f) 0 to 5 wt.% of one or more of auxiliary monomer 2, wherein the auxiliary monomers 1 and 2 are selected from a specific list, and wherein the weight portions (wt.%) of the components a) to f) are based on the solid content of the emulsion polymerizate (2) and sum up to 100 wt.%. Claimed is also a process to make the water-based binder (1), an anode active material slurry for coating an anode current collector for a secondary Li-ion battery and an anode for the secondary Li-ion battery comprising the water-based binder (1), as well as the use of the water-based binder (1).

METHOD FOR CHECKING A QUALITY OF AN ELECTRODE-SEPARATOR ASSEMBLY WHILE IT IS BEING PRODUCED

Resumen de: WO2025195785A1

The invention relates to a method for checking test criteria of an electrode-separator assembly (1), ESA, having ESA sheets (10) comprising the separator sheets (13), anode sheets (11) and cathode sheets (12). According to the method, positions of different relevant regions of the ESA sheets are determined using purely optical means and thus stacking errors can be detected already during the production of an ESA (1).

SORTING PLANAR OBJECTS FOR THE PRODUCTION OF GALVANIC CELLS

Resumen de: WO2025196274A1

The invention relates to the sorting of planar objects that are used to produce galvanic cells, in particular electrochemical energy stores or electrochemical energy transducers. In the process, planar objects are transported along a transport path to at least two intermediate stations, said transport path branching in such a way at at least one branching device that the planar objects can be selectively transported to a first or second intermediate station. In order to sort the planar objects, the following steps are carried out in each case: - providing at least one object property of the respective planar object, and - selecting one of the intermediate stations for the respective planar object depending on the object property/properties of the respective planar object, in order to assign the respective planar object to the selected intermediate station, and - transporting the respective planar object along the transport path to the selected intermediate station, with the respective planar object being guided to the selected intermediate station by the branching device.

METHOD FOR DISCHARGING AN ENERGY STORAGE MODULE

Resumen de: WO2025196260A1

The invention relates to a method for discharging at least one energy storage module comprising a multi-level converter system, in which a multiplicity of energy storage modules and transistors are provided, wherein each energy storage module is able to be connected in parallel and/or in series with the respectively neighbouring energy storage module, the energy storage modules are monitored for an anomaly, and the energy storage modules, preferably the transistors, are switched such that at least one energy storage module is at least partially discharged when an anomaly is detected in a neighbouring energy storage module.

AN ANNULAR CURRENT COLLECTING PART FOR A CYLINDRICAL SECONDARY CELL

Resumen de: WO2025196218A1

This disclosure presents a current collecting part (1) for a cylindrical secondary cell (100) that comprises an electrode roll (110) and an enclosure (120). The current collecting part (1) comprises a roll contact portion (10) for electrical connection to the electrode roll (110), the roll contact portion (10) being substantially annular, and an enclosure contact portion (20) for electrical connection to the enclosure (120), the enclosure contact portion (20) extending radially outwards from the roll contact portion (10). The radial width of the roll contact portion (10) varies in the circumferential direction (c) such that the roll contact portion (10) comprises alternating wider sections (w1) and narrower sections (w2), wherein the wider sections (w2) are adapted to be welded to the electrode roll (110).

BATTERY SYSTEMS HAVING PRESSURE SENSORS AND CIRCUITS FOR PREVENTING BATTERY FIRE AND APPLICATIONS THEREOF

Resumen de: WO2025198636A1

Sensors and circuits for batteries are provided that prevent battery fires. The sensors and circuits are part of a battery management system that detects battery cell swelling and changes in the internal pressure of battery cells and removes the battery cells from service before they vent and catch on fire or explode. The sensors and circuits continually monitor every battery cell for swelling/increases in internal pressure that are indicative of the formation of flammable and explosive gases within the battery cells, and a battery management system that includes one or more of the sensors and circuits removes battery cells with issues from service before they vent and catch on fire or explode.

ALL-SOLID-STATE SECONDARY BATTERY

Resumen de: US2025300218A1

Provided is an all-solid-state secondary battery capable of developing good cycle characteristics even when used for a certain period at high temperatures of 150° C. and above. An all-solid-state secondary battery 1 with a solid electrolyte layer 2, a positive electrode layer 3, and a negative electrode layer 4 includes: a first current collector layer 5 provided on a principal surface of the positive electrode layer 2 located on a side thereof opposite to a side thereof where the solid electrolyte layer 2 is disposed; a second current collector layer 6 provided on a principal surface of the negative electrode layer 4 located on a side thereof opposite to a side thereof where the solid electrolyte layer 2 is disposed; and a sealing layer 7 provided between an outer peripheral edge 5a of the first current collector layer 5 and an outer peripheral edge 6a of the second current collector layer 6 to seal the positive electrode layer 3 and the negative electrode layer 4, wherein an internal space 8 enclosed by the first current collector layer 5, the second current collector layer 6, and the sealing layer 7 is vacuum.

A SLURRY, AN ELECTRODE, AND A METHOD FOR MANUFACTURING AN ELECTRODE FOR LITHIUM-ION BATTERIES

Resumen de: US2025300181A1

A slurry, an electrode, and a method for manufacturing an electrode for Lithium-ion batteries, wherein the electrode is a compound consisting in a water-based binder system and an electrochemically activatable compound with Li-metal oxides comprising Ni, wherein the Ni amount in Metal (LiMeO2) is at least 80% wt, and wherein the pH value in the slurry is adjusted to be between 9 to 10.5.

EARPHONES

Resumen de: US2025301253A1

The present disclosure relates to an earphone, comprising a housing component having a first direction and a second direction orthogonal to the first direction, wherein the housing component further has a first end and a second end arranged opposite to each other along the first direction; an ear hook connected with the housing component, wherein in a wearing state, the ear hook is at least partially located at a rear side of a user's ear, the housing component is located at a front side of the user's ear along the second direction, and the first end of the housing component at least partially extends into a cavity of an auricular concha of the user's ear; and a loudspeaker; wherein in the wearing state, an outer wall surface of the housing component facing the user's ear is arranged in an arch shape away from the user's ear in the first direction.

EARPHONES

Resumen de: US2025301252A1

The present disclosure provides an earphone. The earphone includes a host module and an ear hook. The ear hook includes a first end and a second end disposed opposite to each other, and the first end is connected to the host module. The ear hook is configured to be hooked on a user's ear. The ear hook includes an elastic framework, a covering member, and a fixing block. The elastic framework extends along an extension direction from the first end to the second end. The covering member includes a front covering section and a rear covering section. The front covering section and the rear covering section are connected to each other along the extension direction. The fixing block is disposed at one end of the elastic framework away from the first end.

Easily Wettable Separator for Energy Storage Devices

Resumen de: US2025300322A1

Porous polymer films including membranes are disclosed that have an improved blend of properties. Porous polymer films made according to the present disclosure can show dramatically improved wicking properties when tested against electrolyte solutions, indicating a significant increase in ion conductivity. The films can also be formed with porosity properties, permeability properties, strength properties, and at thicknesses that further enhance performance.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US2025300336A1

A battery cell, a battery, and an electrical device are disclosed. The battery cell includes an electrode assembly. The electrode assembly includes a first electrode plate. The first electrode plate includes a first substrate. The first substrate includes a first insulation layer at an edge of the first substrate.

ELECTROLYTE OF ULTRA EFFICIENT ZINC-BROMINE STATIC BATTERY

Resumen de: US2025300238A1

An electrolyte of a static zinc-based battery, includes zinc bromide in a molar concentration ranging from 1.5 M to 3.0 M, a mixture of two or more quaternary ammonium salts as a bromine complexing agent in a range of 30% to 55% of the molar concentration of the zinc bromide, a glycol based anti-freezing agent in molar concentration ranging from 0.1 M to 2.0 M; and one or more additional supporting ionic conducting agents selected from a group comprising of zinc chloride, potassium chloride, magnesium chloride, lithium chloride, calcium chloride, or a combination thereof. Each of the one or more additional supporting ionic conducting agents or their combination is in a molar concentration ranging from 0.5 M to 2 M.

SECONDARY BATTERY AND BATTERY PACK

Resumen de: US2025300213A1

A secondary battery includes an electrode wound body and first and second electrode current collector plates. The first and second electrode current collector plates are opposed to each other with the electrode wound body interposed therebetween in a width direction. The electrode wound body includes first and second end faces respectively facing the first and second electrode current collector plates in the width direction. The first end face is a portion of an edge part in the width direction, of a first electrode exposed region, that is bent in a state where a stacked body is wound, and includes: one or more first grooves each extending from an outer edge toward an inner edge of the electrode wound body to a point between the outer and inner edges; and a first ungrooved part lying closer to the first electrode current collector plate than the one or more first grooves.

PRESS FOR PERFORMING A CALENDERING TO ELECTRODE PLATE, ELECTRODE PLATE MANUFACTURING SYSTEM HAVING THE SAME, AND METHOD OF MANUFACTURING ELECTRODE PLATE USING THE SAME

Resumen de: US2025300161A1

A press for performing a calendering to an electrode plate, including: a main roll above and below the electrode plate configured to move along a first direction, the main roll to be rotated by a driving force, and having a width along a second direction perpendicular to the first direction; a pulley part on at least one of above or below the electrode plate, and spaced from the main roll along the first direction; a pressure belt rotatably connected to the main roll and the pulley part, and to rotate about the second direction by the driving force and press the electrode plate at a contact angle to extrude the electrode plate along the first direction; and a contact controller to control at least one of a contact area or the contact angle between the electrode plate and the pressure belt by controlling a position of the pulley part.

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE SAME AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US2025300177A1

An anode active material for a lithium secondary battery according to embodiments of the present disclosure includes composite particles which comprise a silicon-containing coating formed on a surface of carbon-based particles comprising porous, wherein the composite particles have a C/SiC peak intensity ratio of 1.0 to 4.5, which is measured through X-ray diffraction analysis after performing heat treatment on the composite particles at 900° C. to 1200° C. for 6 hours to 9 hours. The anode active material for a lithium secondary battery has improved capacity characteristics, output characteristics and lifespan characteristics.

CAN TYPE BATTERY, AND METHOD OF MANUFACTURING CAN TYPE BATTERY

Resumen de: US2025300215A1

A can type battery includes a can body, an electrode laminate accommodated in the can body and constituted by a positive electrode, a negative electrode and an electrolyte layer, and a holding member disposed in a void between the can body and the electrode laminate and configured to hold the electrode laminate in the can body, and the holding member includes a hollow bead formed of a thermoplastic resin, a metal layer formed on an outer circumferential surface of the hollow bead, and a fluid contained in an internal space of the hollow beads, and is a filling member that includes a metal-coated hollow bead contained in the rubber elastic body, wherein the metal-coated hollow bead or the rubber elastic body has a second volume after heating which is greater than a first volume before heating.

ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY WITH THE SAME

Resumen de: US2025300237A1

An electrode assembly includes a separator, a first electrode and a second electrode stacked and wound with the separator between the first electrode and the second electrode. The first electrode includes a first substrate and a first composite layer disposed on the first substrate. The first composite layer is divided into at least two regions along a length direction of the first substrate. At least two regions of the first composite layer have different active material compositions.

ELECTRODE SHEET, METHOD FOR ELECTRODE SHEET RECYCLING, AND ELECTROCHEMICAL APPARATUS

Nº publicación: US2025300261A1 25/09/2025

Solicitante:

XIAMEN HITHIUM ENERGY STORAGE TECH CO LTD [CN]
XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO., LTD

Resumen de: US2025300261A1

An electrode sheet, a method for electrode sheet recycling, and an electrochemical apparatus are provided. The electrode sheet includes a current collector, a primer layer disposed on at least one surface of the current collector, an active material layer disposed on the primer layer, and an edge coating layer disposed on at least one surface of the current collector and connected to the primer layer. The primer layer includes a first water-based binder. The edge coating layer includes a second water-based binder and an inorganic material. After the electrode sheet is immersed in water for a first preset time at a first preset temperature, a first peel strength of the primer layer is less than a second peel strength of the edge coating layer.