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1478
results.
Updated on
25/12/2025 [07:16:00]
Results 575 to 600 of 1478
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: 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: WO2025259770A1
A solution and method for reduction of the deleterious effects of the impurities in secondary lead in batteries is disclosed. The solution comprises: a housing, a battery cell positioned within the housing having a lead, an acid within the housing, a chemical impurity in the lead, and a motivator within the housing and in coupled to the chemical impurity. The impurity may be one of copper, silver and bismuth. The method comprises integrating the motivator into the battery. The integration may comprise adding the motivator to the electrolyte in the housing. The method may comprise application of the motivator to various other aspects of the battery.
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: WO2025257871A1
The apparatus for feeding lids to the terminals of devices for storing electrical energy, such as electric batteries in particular, comprises a pair of handling members (2) adapted to transport a respective plurality of containers (3) step-by-step along relative feed directions (A, A'). Each container (3) is configured to contain a stack of a plurality of lids, each of which can be associated with a terminal of a cylindrical battery, and has, at least at one end, an opening (30) for collecting said lids. Downstream of said handling members (2) there are arranged a pair of gripping members (6), each gripping member (6) being operable in a gripping configuration to lock a container (3) transported to a collecting position (100) by said handling members (2). Collecting means (18) are adapted to collect one lid at a time from each container (3) and transport it to transport means (19) arranged downstream of said handling members (2), in order to transport said lids to a device for feeding cylindrical batteries.
Absstract of: WO2025259977A1
An example of an aerogel composite sheet stack includes a first sub-set, which includes at least one first sheet; a second sub-set, which includes at least one second sheet; an at least temporary attachment layer positioned in at least a portion of an interface between the first sub-set and the second sub-set, the at least temporary attachment layer being selected from the group consisting of: a release sheet; a thermoplastic film at least partially infiltrating pores of each of the at least one first sheet and the at least one second sheet, an adhesive positioned at an edge or a perimeter of the interface, and combinations thereof; and an aerogel material surrounding each of the first sub-set, the second sub-set, and the at least temporary attachment layer.
Absstract of: WO2025257870A1
The apparatus for winding a stack of electrodes is associated with a machine for manufacturing electrical energy storage devices of the type comprising a stack of electrodes formed by folding a flexible strip (2) comprising at least one separator element (20) and a series of anode and cathode elements, applied alternately on said separator element (20). The apparatus comprises means (5) for accumulating a head portion of the separator strip (20) intended to wind the stack of electrodes (10) at the end of the formation of the stack of electrodes (10) on a stacking plane (4). Means (6) for gripping and transferring the stack of electrodes (10) formed on the stacking plane (4) are movable between a first position for gripping the stack of electrodes (10) at said stacking plane (4) and a second position for transferring the same stack of electrodes (10) to winding means (7). The winding means (7) comprise a rotatable member (70) configured to receive the stack of electrodes (10) at the winding station and to be rotated to wind said head portion of the separator strip (20) onto the stack of electrodes (10).
Absstract of: WO2025257869A1
The apparatus for forming a stack of electrodes is associated with a machine for manufacturing electrical energy storage devices, of the type comprising a stack of electrodes formed by folding a flexible strip (2) comprising at least one separator element (20), a series of anode elements (21) and a series of cathode elements (22), applied alternately on said separator element (20). The apparatus comprises feed means (10) for advancing said flexible strip (2) along a feed direction (A) on a feed plane and folding means (3) suitable to be operated in a suitable step relationship to perform a series of folds orthogonal to the feed direction on said flexible strip (2) and to deposit the flexible strip (2) thus folded on a stacking plane (4). The apparatus comprises rotatable means (5) capable of being driven in continuous rotation and having distributed peripherally a plurality of devices (55, 56) for collecting and transferring said anode and cathode elements (21, 22) on the flexible strip (2) in the folding step onto the stacking plane (4).
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: WO2025259505A1
A busbar assembly (100) for electrically interconnecting a plurality of power racks (120) arranged in a rack row (120) includes first and second conductive busbars (152) extending horizontally with respect to the rack row (120). The first and second conductive busbars (152) electrically connect with first and second pluggable connectors (160) extending rearward from the rack row (120) orthogonal to the busbars. To interconnect the conductive busbars (150) and pluggable connectors (160), the busbar assembly (100) includes first and second conductive links (170) that are shaped to extend between the components. To brace the busbars in parallel, the busbar assembly (100) includes a support insulator (180) that traverses and clamps to the busbars.
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: 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: WO2025259349A1
A lithium-ion cell and a method of regenerating the capacity of the cell in order to extend the cycling life of the cell. The lithium-ion cell includes an anode having a negative electrode with one or more anode active materials and at least one anode binder material; and a cathode having a positive electrode with one or more cathode active materials, at least one carbon additive, at least one cathode binder material, and at least one lithium additive. The lithium-ion cell, which has an initial capacity and maximum voltage, is configured for regeneration once the initial capacity decays to a capacity level that is < 95% of the initial capacity. The regeneration includes the oxidation of the lithium additive by charging the cell to a higher voltage than the maximum voltage, thereby, increasing the capacity level and extending the useful cycling life of the lithium-ion cell.
Absstract of: WO2025256816A1
The invention proposes a method for determining a calendrical capacity loss ΔQ of a battery cell over a defined time range. The method is at least characterized by the following steps: - (S1) providing a first state of charge SOC1 at a start of the time range; - (S2) determining a second state of charge SOC2 at an end of the time range; - (S3) providing a state-of-charge-dependent expansion characteristic curve DSOC(SOC) (40); - (S4) providing an expansion characteristic curve Dl oss (ΔQ) (41) which is dependent on the capacity loss ΔQ; - (S5) detecting a change in expansion ΔD (42) of the battery cell between the start and end of the time range; and - (S6) determining the capacity loss ΔQ by means of the relationship ΔD = DSOC (SOC2) - DSOC(SOC1) + Dloss(ΔQ). The invention also relates to a production method for a battery cell.
Absstract of: EP4663787A1
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: EP4664602A1
The present disclosure refers to a battery module (100) with a simple connection structure enabling assembly with fewer steps, including a plurality of battery cells (10), a busbar (1) for contacting the plurality of battery cells (10), a thermally and electrically conducting bushing (2) thermally and electrically fixed to the busbar (1), and a circuit board (3) fixed to the bushing (2) by fixation means such that the bushing (2) spaces the circuit board (3) from the busbar (1), wherein the circuit board (3) includes a temperature sensor (5) configured for contacting the busbar (1) through the bushing (2) in a thermally conducting manner, and a voltage signal line (6) configured for contacting the busbar (1) through the bushing (2) in an electrically conducting manner.
Absstract of: EP4664603A1
A battery cell stack assembly (1) for a battery module or a battery pack, the battery cell stack assembly having a longitudinal extension along a longitudinal direction, a width extension along a width direction (W) and a height extension along a height direction (H), the battery cell stack assembly comprising:- a plurality of prismatic battery cells (2), stacked next to each other in at least three longitudinally extending and parallel battery cell rows (R1, R2, R3),- a bottom support plate (3), wherein the at least three battery cell rows (R1, R2, R3) are supported on a support surface of the bottom support plate which faces upwardly in the height direction (H),- a first cooling plate (4), provided in a first longitudinally extending space (S1) in-between two adjacent battery cell rows (R1, R2) of the at least three battery cell rows (R1, R2, R3), and extending in the longitudinal direction and the height direction (H) such that it forms an intermediate wall between the two adjacent battery cell rows (R1, R2),- a first alignment element (32), provided in the first longitudinally extending space (S1) and below the first cooling plate, as seen in the height direction (H), wherein the first alignment element has an extension in the longitudinal direction corresponding to at least a portion of an extension of the first longitudinally extending space (S1) and is configured to align the two adjacent battery cell rows (R1, R2) with respect to the longitudinal direction (L), and- w
Absstract of: EP4665096A1
Vorgeschlagen wird ein Verfahren und eine Vorrichtung zur Entwärmung eines elektrischen Systems umfassend ein Erfassen einer zeitlichen Vorhersage eines Lastprofils, eine Berechnung einer benötigten Kühlleistung, und eine Anpassung der Kapazität eines Kühlungssystems mittels Ansteuerung dessen Anbindungskomponenten zu weiteren Kühlungssystemen, auf Basis der berechneten benötigten Kühlleistung. Die beschriebene innovative Lösung gestaltet den Wärmefluss von einer Hitzequelle zum Kühler effizienter und berücksichtigt gleichzeitig eine zeitliche Vorhersage der Anwendung, wie beispielsweise eines Lastprofils. Dies wird durch eine Wechselwirkung zwischen Kühlsystemen ermöglicht.
Absstract of: EP4663707A1
Provided is a light-curable composition useful as potting compositions in battery assemblies. The composition comprises, optionally, one or more monofunctional (meth)acrylate monomers, a crosslinker selected from multifunctional oligomeric (meth)acrylates, aliphatic urethane (meth)acrylates, aromatic urethane (meth)acrylates, polyester (meth)acrylates, and epoxy (meth)acrylates, one or more adhesion promoters selected from glycidyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate acid phosphate, phosphonate ester-containing (meth)acrylic monomer, phosphate ester-containing (meth)acrylic monomer, silane, and (meth)acrylic acid. The composition further includes a photoinitiator, a flame retardant, and one or more hollow fillers.
Absstract of: EP4663320A1
Die Erfindung betrifft eine Batteriewanne (1) für einen Batterieträger eines Elektrofahrzeuges, wobei die Batteriewanne (1) einen Boden (3) aufweist, und sich einstückig und werkstoffeinheitlich von dem Boden (3) erstreckend eine umlaufende Wand aufweist und optional einen außen umlaufenden von der Wand abstehenden Flansch (6), wobei die Batteriewanne (1) aus einer härtbaren Stahlblechplatine (13) als warmumgeformtes und pressgehärtetes Bauteil hergestellt ist, mit einer Zugfestigkeit Rm größer gleich 1250 MPa, dadurch gekennzeichnet, dass in einem jeweiligen Eckbereich (10) der Seitenwände (4, 5) zueinander die Zugfestigkeit Rm kleiner 1100 MPa ist.
Absstract of: EP4663819A1
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.
Nº publicación: EP4664659A1 17/12/2025
Applicant:
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
Absstract of: EP4664659A1
The present disclosure refers to a battery system (100) including a housing (10) and a plurality of battery cells (12) accommodated within the housing (10), each of the battery cells (12) including cell terminals (16), wherein the cell terminals (16) of neighboring battery cells (12) are electrically interconnected via electrical connecting elements (20), each electrical connecting element (20) including a first layer (22) contacting neighboring cell terminals (16) and a second layer (24) disposed on top of the first layer (22), wherein the first layer (22) has a first melting point and the second layer (24) has a second melting point, wherein the second melting point is lower than the first melting point.
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