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1394
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Updated on
23/12/2025 [07:13:00]
Results 25 to 50 of 1394
Absstract of: WO2025257670A1
Provided herein is an electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI) and lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI). The solvent additive comprises one or more fluorinated and/or unsaturated carbonate compounds. The solvent comprises a cyclic carbonate and a linear carbonate. Also provided is an electrochemical cell comprising the electrolyte composition, an electrochemical energy storage device comprising the electrochemical cell, and uses associated with the electrolyte composition.
Absstract of: DE102025144914A1
Die Erfindung betrifft eine Vorrichtung (1) zur Verringerung einer Ausbreitung eines thermischen Durchgehens innerhalb eines Gehäuses (4) eines elektrischen Energiespeichers (2) eines Fahrzeuges mit einer elektrischen Antriebseinheit, wobei das Gehäuse (4) eine im Normalbetrieb geschlossene Berstöffnung (O) aufweist. Erfindungsgemäß ist vorgesehen, dass die Berstöffnung (O) mit einem Einlass (E) einer außerhalb des Gehäuses (4) angeordneten Leitung (6) zur Aufnahme eines über die Berstöffnung (O) nach außerhalb des Gehäuses (4) strömenden Ventinggases (V) im Fall eines innerhalb des Gehäuses (4) auftretenden thermischen Ereignisses fluidisch gekoppelt ist, ein gegenüberliegender Auslass (A) der Leitung (6) an einer zu der Berstöffnung (O) beabstandeten Öffnung des Gehäuses (4) zur Rückführung des Ventinggases (V) in das Gehäuse (4) mündet, wobei in einen Leitungsabschnitt zwischen der Berstöffnung (O) und der Öffnung des Gehäuses (4) ein Oxidationskatalysator (7) zur Umwandlung von in dem Ventinggas (V) enthaltenem Kohlenstoffmonoxid in Kohlenstoffdioxid integriert ist und dem Oxidationskatalysator (7) nachgelagert eine Kühleinheit (8) in den Leitungsabschnitt zur Verringerung einer Temperatur des in das Gehäuse (4) rückgeführten Ventinggases (V) integriert ist.
Absstract of: DE102024116842A1
Ein Akkupack (1) für ein Elektrogerät weist eine Pouch-Zelle (2, 2') und ein Wärmeableitelement (3, 3') auf, das auf einer Seite der Pouch-Zelle (2, 2') zur Ableitung von durch die Pouch-Zelle (2, 2') erzeugter Wärme angeordnet ist, sowie eine Glimmerplatte (4, 4', 6, 6'), die zwischen der Pouch-Zelle (2, 2') und dem Wärmeableitelement (3, 3') angeordnet ist.
Absstract of: DE102025122587A1
Eine Festkörperbatterie nach der vorliegenden Offenbarung umfasst einen Elektrodenkörper, Stromsammellaschen, die mit dem Elektrodenkörper verbunden sind, und ein Schutzelement. Der Elektrodenkörper hat einen Positivelektrodenstromsammler, eine Positivelektrodenaktivmaterialschicht, eine Festelektrolytschicht, eine Negativelektrodenaktivmaterialschicht und einen Negativelektrodenstromsammler, die entlang einer Laminierrichtung laminiert sind. Die Festelektrolytschicht hat eine Stützeinrichtung, die eine Vielzahl von Fasern umfasst, die sich im Material vom Schutzelement unterscheiden. Die Stützeinrichtung steht von einer Endfläche der Festelektrolytschicht vor. Das Schutzelement ist mit der Stützeinrichtung verbunden und an der Endfläche angeordnet.
Absstract of: DE102024117001A1
Die vorliegende Erfindung betrifft ein Verfahren zur Folierung von Batteriezellen mittels einer Foliereinrichtung. Weiterhin betrifft die vorliegende Erfindung eine gemäß diesem Verfahren erhaltene oder erhältliche, mit einer Klebefolie ummantelte Batteriezelle.
Absstract of: DE102024116814A1
Die Erfindung betrifft ein Diagnoseverfahren (10) zur Ermittlung eines sich über die Alterung ändernden Leistungszustandes einer Batteriezelle (3) eines Fahrzeugs (1), aufweisend die Schritte:- Anregen (11) der Batteriezelle (3) mit einem ersten Diagnosestromsignal (24) zur Erzeugung eines ersten Antwortsignals (12) der Batteriezelle innerhalb eines Entladevorgangs (20) und/oder während der Fahrt (20),- Erfassen (13) des ersten Antwortsignals (12) während des Entladevorgangs (20) und/oder während der Fahrt (20), gekennzeichnet durch- Anregen (14) der Batteriezelle (3) mit einem zweiten Diagnosestromsignal (34) zur Erzeugung eines zweiten Antwortsignals (15) der Batteriezelle (3) vor einer Ladephase (35) der Batteriezelle (3), während einer Ladephase (35) der Batteriezelle (3) und/oder in einem Stillstand (30) des Fahrzeugs (1),- Erfassen (16) des zweiten Antwortsignals (15) im Stillstand (30), wobei das Erfassen (14) des zweiten Antwortsignals (15) bei einem gleichen Ladezustand (SOC) wie das Erfassen (13) des ersten Antwortsignals (12) erfolgt, und- Bestimmen (17), insbesondere Berechnen unter Verwendung eines Ersatzschaltbildes (50), des Leistungszustandes mit dem ersten Antwortsignal (12) und dem zweiten Antwortsignal (15).
Absstract of: WO2025257723A1
The battery housing (12) comprises : a main body (18), made as a single piece by means of a process of high-pressure die-casting (HPDC) of aluminium alloy, and having a box-like shape adapted to define an internal volume and having only one open face (22); and a lid (20), adapted to be applied to the main body (18) so as to close said open face (22), wherein the lid (20) is adapted to be applied to the main body (18) by means of a mechanical snap- or pressure- connection (28; 30), or wherein the lid (20) is adapted to be applied to the main body (28) by means of a sliding connection.
Absstract of: WO2025257659A1
Provided herein is an electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI), lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI) and lithium difluoro(oxalato)borate (LiDFOB). The solvent additive comprises one or more fluorinated and/or unsaturated carbonate compounds. The solvent comprises a cyclic carbonate. Also provided is an electrochemical cell comprising the electrolyte composition, an electrochemical energy storage device comprising the electrochemical cell, and uses associated with the electrolyte composition.
Absstract of: WO2025257105A1
The disclosure relates to a method of recycling metals of a battery, wherein the battery comprises cyano-based material such as Prussian Blue Analogs. The method uses alkaline leaching, physical separation and subsequent evaporation to recover high value components from the battery.
Absstract of: US2025385533A1
A battery pack includes a set of blocks of battery cells, where each of the blocks is connected in series, and a set of AC impedance circuits, where each of the AC impedance circuits is electrically connected to at least one of the blocks of battery cells in the set of blocks of battery cells to apply an AC excitation signal to the at least one of the blocks in the set of blocks. The battery pack includes a controller configured to: calculate an impedance value for each of the at least one of the blocks of battery cells based on the AC excitation signal applied to each of the at least one of the blocks of battery cells, and adjust a parameter of the battery pack based on the calculated impedance value for each of the at least one of the blocks of battery cells.
Absstract of: WO2025257073A1
The present invention relates to a process to manufacture sodium chloride comprising at least the steps: c) reacting calcium chloride with a sodium sulfate-containing material, whereby the sodium sulfate-containing material originates from i) a recycling of batteries or ii) a manufacturing of cathode active material (CAM) and precursor cathode active material (PCAM) for batteries, or iii) a production of Li, Co, Mn, or Ni, and wherein the sodium sulfate-containing material comprises on a dry basis at least 80 wt.-% sodium sulfate and at least 0.5 mg of at least one element X selected in the list consisting of: Co, F, Li, Mn, Ni, P and mixtures thereof, expressed per kg of sodium sulfate-containing material, and wherein reacting the calcium chloride with the sodium sulfate-containing material is done in an aqueous solution at a pH of at least 5 and produces sodium chloride in the aqueous solution and calcium sulfate in solid form, and c1) at least part of the sodium chloride in the aqueous solution is separated from the calcium sulfate in solid form.
Absstract of: WO2025257651A1
The invention relates to an electric cell (1) comprising: - a sealed flexible pouch (2); - a plurality of positive and negative electrodes (3, 4) separated from one another by a porous separator film (5) so as to form a stack (6) of electrodes, wherein the stack (6) of electrodes is contained in the flexible pouch (2); - an electrolyte arranged in the flexible pouch (2); - a first terminal (7) connected to the positive electrodes (3) and a second terminal connected to the negative electrodes (4), wherein the first and second terminals project from the flexible pouch (2), and wherein the cell (1) comprises a rigid outer shell (9) in which the flexible pouch (2) is arranged, wherein the outer shell (9) comprises: - a first metal portion (10) connected to the first terminal (7); and - a second metal portion (11) connected to the second terminal.
Absstract of: WO2025257367A1
The invention relates to a battery which comprises an outer casing delimiting: - a lower compartment accommodating a first group of battery modules, the lower compartment comprising a lower module-cooling plate provided with a lower circuit for the passage of a cooling liquid, and - an upper compartment, arranged above the lower compartment and accommodating a second group of battery modules, the upper compartment comprising an upper module-cooling plate provided with an upper circuit for the passage of cooling liquid. The outer casing comprises: - a first lower port (44) connected to the lower cooling circuit (42), - a first upper port (54) connected to the upper cooling circuit (52), and the battery has an external connecting pipe, referred to as first external pipe (74), connecting the first lower port (44) and the first upper port (54).
Absstract of: WO2025257482A1
The invention relates to a method for determining an item of information relating to a rechargeable battery forming part of a system, wherein the battery comprises a plurality of cells and has determined first voltages across the terminals of the cells and a determined no-load voltage, and wherein the battery further has an estimated capacity obtained by dividing a quantity of ampere-hours delivered during a discharge phase or received during a charge phase by a variation in the state of charge during this discharge phase or this charge phase. This method comprises a step (10-20) of determining an item of information representative of a minimum variation in the state of charge, wherein the item of information is used to estimate the capacity with a selected degree of accuracy, and wherein the determination step is performed as a function of at least one first estimated error relating to the variation in the state of charge and a second estimated error relating to the quantity of ampere-hours.
Absstract of: WO2025257019A1
The invention relates to a method for cutting an electrode strip (2) which has a substrate (4) with a coated region (6) and with an uncoated edge region (8), wherein a supporting strip (12) is arranged on the electrode strip (2) so as to run alongside in such a way that the supporting strip (12) supports the uncoated edge region (8) and projects laterally beyond the edge region (8), wherein the electrode strip (2) is laser-cut in the uncoated edge region (8) to form an arrester tab (10), and wherein the laser cutting is carried out via the supporting strip (12). The invention also relates to a device (32) for cutting the electrode strip (2).
Absstract of: WO2025257311A1
A method for preparing a metal-bearing M'-hydroxide particulate material, the method comprising the steps of: (a) determining a target value (D') for a median particle diameter D50 of the material to be prepared, preferably the D' being in the range of 3-20 μm; (b) combining, during a time period (T1-T2), streams of an aqueous solution (βc) containing salts of metals Mc' and an aqueous solution (ω) containing an alkali metal hydroxide in a stirred tank reactor at a pH of 10.5-12.5, determined at 20 °C, thereby increasing the sizes of particles comprising Mc'-hydroxide in a slurry thus formed; (c) continuing step (b) until the D50 of the particles reaches approximately a value of Dc, wherein the amount of metals Mc' provided by the flow of solution (βc) during the period (T1-T2) is θc, wherein (formula I), wherein ε is a predetermined value selected from the range of 0.01-0.9; (d) providing at least a fraction Sc of the slurry obtained in step (c) either to the same or to a different stirred tank reactor, wherein 0
Absstract of: WO2025257297A1
The present invention relates to aliovalently substituted argyrodite-type solid electrolyte solid electrolytes. These solid electrolytes display and increased ionic conductivity.
Absstract of: WO2025257296A1
The present disclosure relates to the recycling of graphite from lithium-ion batteries. A graphite material depleted of amorphous carbon is obtained by heating a leach residue obtained by acid treatment of black mass from lithium-ion batteries under controlled conditions. The graphite material depleted of amorphous carbon is subjected to caustic leaching to obtain purified graphite.
Absstract of: WO2025257017A1
The invention relates to a method for monitoring a vehicle battery (210), having the following steps: determining (S1) at least one parameter (113, 121, 122, 123, 124, 125) of the vehicle battery (210); modelling (S4) a temperature hotspot using the at least one parameter (113, 121, 122, 123, 124, 125); providing (S5) information (131) about the modelled temperature hotspot; and transmitting (S8) the information (131) to a vehicle-external receiver (140) if a criterion is met which is based on a temperature threshold value (111) and/or a probability threshold value. The invention also relates to a corresponding control device (130) and to a computer program.
Absstract of: WO2025257270A1
The invention relates to a method for detecting leaks in an object defining at least one internal volume, said method comprising a step of pressurization/depressurization of an internal volume from an initial pressure, characterized in that the method comprises, simultaneously with the pressurization/depressurization step, a monitoring step allowing the interruption of the pressurization/depressurization step when the instantaneous pressure/depression is outside a predetermined tolerance interval around said reference value.
Absstract of: WO2025257189A1
The present invention relates to a method for recovering metals from a black mass from spent lithium-ion batteries. In particular, it relates to a method for leaching Co, Ni and Li from a solid S obtainable from a black mass from spent Li-ion batteries, said solid S comprising Ni, Co, Mn and Li, said method comprising contacting the solid S with a sulfur-containing inorganic peracid, such as Caro's acid (peroxymonosulfuric acid), thereby obtaining a solution C comprising Co, Ni, and Li on the one hand, and a solid S" comprising Mn on the other hand.
Absstract of: WO2025257108A1
A method for fabricating a metal oxide layer involves providing a metallic nitride substrate and performing electrochemical oxidation of the metallic nitride substrate in either an acidic or basic environment to form the metal oxide layer. This electrochemical oxidation process is characterized by a gas-evolving reaction that results in the formation and escape of nitrogen gas from the forming metal oxide layer such that a mesoporous 3D interconnected metal oxide structure comprising a 3D network of interconnected pores is formed. This method enables the creation of metal oxide layers with specific properties suitable for various applications, including but not limited to, use in batteries, and as electrodes in molecular synthesis.
Absstract of: DE102024117048A1
Die vorliegende Erfindung betrifft ein Batteriesystem (10) für ein Kraftfahrzeug (100), das Batteriesystem (10) umfassend zumindest einen Grundkörper (20), zumindest eine Speichervorrichtung (30) zur Speicherung und Bereitstellung von elektrischer Energie innerhalb des zumindest einen Grundkörper (20), eine Entgasungsvorrichtung (40) zur Entgasung des zumindest einen Grundkörpers (20) und eine Kühlschnittstelle (80) zum Einbringen von Kühlflüssigkeit von einer ersten Zelle der Speichervorrichtung (30) in zumindest eine benachbarte zweite Zelle der Speichervorrichtung (30). Ferner betrifft die Erfindung ein Kraftfahrzeug (100) mit zumindest einem Batteriesystem (10).
Absstract of: DE102024116711A1
Die Erfindung betrifft eine thermische Ausgangsschnittstelleneinrichtung (11) für ein Kraftfahrzeug (10), wobei die Ausgangsschnittstelleneinrichtung (11) mit einer Antriebsbatterie (12) des Kraftfahrzeugs (10) thermisch verbindbar ist, wobei die Ausgangsschnittstelleneinrichtung (11) wenigstens ein Wärmetauschelement (16) aufweist, welches eingerichtet ist, thermische Energie von der Antriebsbatterie (12) abzugeben.
Nº publicación: DE102024116713A1 18/12/2025
Applicant:
BAYERISCHE MOTOREN WERKE AG [DE]
Bayerische Motoren Werke Aktiengesellschaft
Absstract of: DE102024116713A1
Die Erfindung betrifft eine Aufnahmeeinrichtung (11) für Batterierundzellen (20) eines Hochvoltspeichers, wobei die Aufnahmeeinrichtung (11) eingerichtet ist, Batterierundzellen aufzunehmen und in einer Zellpackung anzuordnen. Zudem betrifft die Erfindung eine Aufnahmevorrichtung 10 und einen Hochvoltspeicher.
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