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1277
results.
Updated on
15/08/2025 [07:19:00]
Results 575 to 600 of 1277
Absstract of: US2025253329A1
A positive electrode plate includes a positive current collector and a positive electrode film layer. The positive electrode film layer is disposed on at least one surface of the positive current collector. The positive electrode film layer includes a first positive electrode film layer and a second positive electrode film layer. The first positive electrode film layer is located between the positive current collector and the second positive electrode film layer. The first positive electrode film layer includes a first positive active material. A specific surface area of the first positive active material is 12 m2/g to 16 m2/g. The second positive electrode film layer includes a second positive active material. A specific surface area of the second positive active material is 6 m2/g to 19 m2/g.
Absstract of: US2025253324A1
A negative electrode active material includes a silicon-based active material having a crystal grain size of about 300 nm or less. The silicon-based active material has a value of about 2.00 or less as defined by Equation 1 below. The silicon-based active material includes SiOx (x=0) and at least one selected from SiOx (0
Absstract of: US2025253321A1
Disclosed is an anode including an anode current collector, and an anode active material layer which is disposed on at least one surface of the anode current collector and has a multilayer structure comprising a first anode active material layer and a second anode active material layer. At least one of the first anode active material layer and the second anode active material layer includes a first metal-doped first silicon-based active material, and a doping amount of the first metal is 1.5% by weight to 8% by weight based on a total weight of the first silicon-based active material.
Absstract of: US2025253318A1
Provided is a cathode active material for lithium secondary batteries, featuring a core component with a coating part comprising lithium oxide. The lithium oxide includes lithium, a first element, and a second element substituting part of the first element. The first element can be boron (B), aluminum (Al), gallium (Ga), niobium (Nb), protactinium (Pa), or tantalum (Ta). The cathode active material demonstrates improved electrochemical stability and interfacial properties, with specified reduction and oxidation potentials. The lithium secondary battery comprises this cathode, an anode, and a solid electrolyte layer interposed between them. The core component may consist of lithium transition metal oxide in the form of secondary particles aggregating primary particles, providing enhanced performance. The solid electrolyte may be sulfide-based with an argyrodite crystal structure. The battery also includes a conductive material and a binder for improved functionality and stability.
Absstract of: US2025253474A1
A bracket assembly, a battery rack and an energy storage container are provided. The battery rack main body is provided with multiple layers of battery storage areas for placing battery packs. The bracket assembly includes a plurality of first brackets configured to support and fix the battery packs. Each of the battery storage areas is mounted with a plurality of the first brackets. The plurality of the first brackets in the same battery storage area are arranged in multiple columns and multiple rows. Two adjacent first brackets in the same row are arranged in a staggered manner, so that two adjacent battery packs in the same row are arranged in a staggered manner.
Absstract of: US2025253320A1
The present invention relates to an anodic material for use in lithium ion battery (LIB) comprising of FeSe2 and its carbon composite with N, S doped porous carbon spheres (PNSCS) which can be synthesised by hydrothermal route using iron ammonium sulphate, selenium powder and citric acid as precursors and used as an anode for LIB. Further, the invention provides a process for synthesizing the said FeSe2 a PNSCS micro-flower composite by simple hydrothermal route.
Absstract of: US2025253353A1
Disclosed is an all-solid-state comprising: an anode current collector; a first coating layer disposed on the anode current collector and comprising a first anode active material, a first conductive material, and a first binder; a second coating layer disposed on the first coating layer and comprising a second anode active material, a second conductive material, a solid electrolyte, and a second binder; a solid electrolyte layer disposed on the second coating layer; a cathode layer disposed on the solid electrolyte layer; and a cathode current collector disposed on the cathode layer.
Absstract of: US2025253310A1
An anode material and a battery provided. The anode material includes a carbon matrix and a silicon material. The anode material, tested by Raman spectroscopy, has a first characteristic peak at 520±10 cm−1 with a peak intensity of IA; a second characteristic peak at 960±10 cm−1 with a peak intensity of IB; and a third characteristic peak at 480±10 cm−1 with a peak intensity of IC, where IA, IB and IC have a relationship of 0.3≤IA/(IB+IC)≤0.6. The anode material provided has high initial Coulombic efficiency, high reversible capacity, and high expansion resistance.
Absstract of: US2025253319A1
A negative electrode including a negative electrode current collector; a negative electrode active material layer that is disposed on at least one surface of the negative electrode current collector and includes a negative electrode active material; and a coating layer including a negative-type (N-type) organic active material, wherein the negative electrode active material layer includes an inclined part provided in at least one side thereof by partitioning the negative electrode active material layer, and a flat part provided excluding the inclined part, the inclined part is inclined towards the surface of the negative electrode current collector, and the coating layer is disposed on at least a portion of the inclined part.
Absstract of: US2025253307A1
A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.
Absstract of: DE102025101441A1
Leistungsspeichervorrichtung (1) mit einem Paar von Leistungsspeicherzellen (100), die so angeordnet sind, dass sie einander in einer ersten Richtung zugewandt sind, einem Kühlelement (200), das in thermischem Kontakt mit dem Paar von Leistungsspeicherzellen in einer zweiten Richtung steht und das Paar von Leistungsspeicherzellen kühlt, und einem Wärmeisolierelement (300), das zwischen dem Paar von Leistungsspeicherzellen angeordnet ist. Das Kühlelement (200) umfasst ein Paar von Zellenkontaktabschnitten (210), die jeweils in thermischen Kontakt mit dem Paar von Leistungsspeicherzellen in der zweiten Richtung kommen, und einen Kupplungsabschnitt (220), der das Paar von Zellenkontaktabschnitten miteinander kuppelt. Ein thermischer Widerstand des Kupplungsabschnitts (220) ist größer als ein thermischer Widerstand jedes der beiden Zellenkontaktabschnitte (210).
Absstract of: DE102024103074A1
Die Erfindung betrifft ein Verfahren zum Verschäumen eines eine Vielzahl an Batteriezellen (10) umfassenden Batteriezellkomplexes (12) für eine Batterie eines Kraftfahrzeugs, bei welchem vor dem Verschäumen wenigstens ein Treibmitteldepot (24) mit einem Treibmittel an dem Batteriezellkomplex (12) angeordnet wird und anschließend der Batteriezellkomplex (12) mit einem Schäummaterial zumindest bereichsweise umschäumt wird, wobei das Schäummaterial durch Kontakt mit dem Treibmittel verstärkt aufschäumt, wodurch ein an das Treibmitteldepot (24) angrenzender definierter Bereich des Batteriezellkomplexes (12) beim Verschäumen durch Bilden einer Gasblase (26) frei von dem Schäummaterial gehalten wird.
Absstract of: DE102024103123A1
Es werden eine Vorrichtung, ein Fortbewegungsmittel (10) sowie ein Verfahren zum Ladungsmanagement in einem Bordnetz (1) eines Fortbewegungsmittels (10) mit mehreren Energiespeicherpacks (2, 3) vorgeschlagen. Das Verfahren umfasst die Schritte: Ermitteln eines ersten Ladezustandes eines ersten Energiespeicherpacks (2) und eines zweiten Ladezustandes eines zweiten Energiespeicherpacks (3), Ermitteln einer Notwendigkeit zur relativen Änderung des ersten Ladezustandes gegenüber dem zweiten Ladezustand und im Ansprechen darauf Ansteuern eines dem ersten Energiespeicherpack (2) zugeordneten ersten Gleichspannungswandlers (4) und eines dem zweiten Energiespeicherpack (3) zugeordneten zweiten Gleichspannungswandlers (5) zur relativen Änderung der Ladezustände.
Absstract of: DE102024109089A1
Es werden ein elektrisches System und ein Betriebsverfahren offenbart. Das elektrische System kann ein Energiespeicher sein, der eine Last betreibt. Ein Batteriepack versorgt das elektrische System mit Strom. Ein Prozessor bestimmt ein Modell eines Leistungsplans des elektrischen Systems, bestimmt unter Verwendung des Modells eine Prüfzeit während des Betriebs des elektrischen Systems, um einen Parameter zu ermitteln, der zur Berechnung der Kapazität des Batteriepacks geeignet ist, ermittelt den Parameter des Batteriepacks zu der Prüfzeit, berechnet die Kapazität des Batteriepacks unter Verwendung des Parameters und betreibt das elektrische System auf der Grundlage der berechneten Kapazität.
Absstract of: WO2025163537A1
An apparatus and a method for applying end plates (T), preferably for electrochemical cells in the manufacture of batteries, wherein a plurality of internal assemblies, in particular coils (B), are transported along a work path (C), the end plates (T) being intended to be applied to a respective coil target end, and wherein it is provided that, at each target end of said coils (B), a jaw (50), integral with the motion of the corresponding coil (B), is configured to retain a single end plate (T) in a predefined position in proximity to said target end and at a predetermined distance therefrom, and wherein, subsequently, said end plate (T) is translated towards said target end in such a way as to cause the end plate to adhere thereto.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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).
Absstract of: 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).
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2025161107A1
A non-aqueous organic high-voltage electrolyte and a lithium-ion battery comprising same. The non-aqueous organic high-voltage electrolyte comprises a lithium salt and a non-aqueous organic solvent. The non-aqueous organic solvent comprises a sulfolane derivative and a diluent, and the sulfolane derivative has the structure shown in formula (1). The non-aqueous organic high-voltage electrolyte exhibits high-voltage resistance, so that lithium-ion batteries using the electrolyte have excellent high-voltage cycle performance. The electrolyte is compatible with all currently known high-voltage positive electrode active materials and has flame-retardant properties, preventing potential combustion risks of the electrolyte while ensuring stable high-voltage charge-discharge cycling.
Absstract of: WO2025163113A1
The invention relates to a battery, comprising at least two battery cells (1) and a balancing module (2) for carrying out charge balancing of the battery cells (1), wherein the balancing module (2) is designed to dissipate the excess charge of at least one battery cell (1) at a resistor (3). The battery according to the invention is characterised in that the resistor (3) is connected to one of the battery cells (1) in a thermally conductive manner.
Nº publicación: WO2025162542A2 07/08/2025
Applicant:
BAYERISCHE MOTOREN WERKE AG [DE]
BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Absstract of: WO2025162542A2
The invention relates to a method for producing a cylindrical battery cell. The method comprises the following steps: a) providing (100) a cylindrical battery cell blank (11) having an outer wall which comprises steel; b) applying (300) a primer (19) to at least parts of the outer wall; c) closing (400) the battery cell blank (11) by laser welding or by means of a crimping closure; and d) filling (500) the battery cell blank (11) with an electrolyte (18). The invention further relates to a cylindrical battery cell (10), to a battery pack (20) comprising a plurality of cylindrical battery cells (10), to a method for producing the battery pack and to a motor vehicle (30) comprising at least one battery pack (20).
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