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649
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Updated on
03/01/2026 [07:35:00]
Absstract of: EP4672377A1
A negative electrode active material is provided. The negative electrode active material includes a carbon-based material, where particle surface of the carbon-based material includes an alkali metal element, and the alkali metal element includes element sodium and/or element potassium. In this application, the surface of carbon-based material such as a graphite material is treated to obtain an organic substance layer similar to an SEI film on the particle surface, which can effectively improve the quality of the SEI film, thereby improving the initial coulombic efficiency and cycling performance of the secondary battery. A secondary battery including the negative electrode active material is further provided.
Absstract of: MX2025009405A
Systems and methods provide for battery conditioning for high voltage (HV) electrical vehicles. Battery temperatures are monitored, and responsive to one or more battery temperatures falling within designated ranges, one or more battery temperatures may be increased via heating in order to provide for more uniform battery performance and conditioning.
Absstract of: CN120642168A
Systems and methods for charging a rechargeable electronic device having a USB interface are provided. An example method includes comparing a charging voltage level of a charging device to a charging voltage range. The method may also include charging the battery with the charging current based on the charging voltage level being within the charging voltage range. The method may also include comparing the charging current to a charging current range, and increasing the charging current based on determining that the charging current is within the charging current range. The method may include again comparing the charging voltage level to the charging voltage range and comparing the charging current to the charging current range, and based on determining that the charging voltage level is within the charging voltage range and the charging current is within the charging current range, continuing to charge the rechargeable electronic device with the charging current.
Absstract of: CN120814081A
A solid state polymer electrolyte is provided, the solid state polymer electrolyte comprising a cross-linked polytriazolium matrix. The invention also provides a method for preparing the solid polymer electrolyte. Further provided is a battery comprising the solid polymer electrolyte as described herein.
Absstract of: EP4671211A1
Provided is a method for manufacturing a precursor for a lithium secondary battery, the method comprising: preparing a metal raw material; and forming a reaction solution comprising the metal raw material to coprecipitate a metal hydroxide precursor, wherein the reaction solution further comprises an additional additive, and the additive comprises a colloidal flocculant.
Absstract of: EP4670871A1
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Metallpulver, bei welchem eine Mischung umfassend mindestens ein Metallmaterial und mindestens ein Lösungsmittel bereitgestellt wird, die Mischung mindestens einem Mahlprozess unterzogen wird, und das mindestens eine Lösungsmittel durch Abdampfen von der Mischung abgetrennt wird. Das mindestens eine Metallmaterial ist ausgewählt aus der Gruppe bestehend aus Alkalimetallen, Indium sowie Mischungen und Legierungen hiervon. Das mindestens eine Lösungsmittel weist einen Dampfdruck bei 20 °C von mindestens 0,002 bar auf und ist ausgewählt aus der Gruppe bestehend aus aliphatischen Kohlenwasserstoffen, aromatischen Kohlenwasserstoffen, sowie Mischungen hiervon. Der mindestens eine Mahlprozess erfolgt bei einer Temperatur, die mindestens 10 °C unter dem Schmelzpunkt des mindestens einen Lösungsmittels liegt. Im Weiteren betrifft die vorliegende Erfindung auch ein Metallpulver sowie dessen Verwendung.
Absstract of: EP4672346A1
A positive electrode includes a positive current collector and a positive active layer. The positive active layer is disposed on a preset surface of the positive current collector. The positive active layer includes positive electrode particles partially embedded into the positive current collector. The positive electrode particles are made from sodium iron phosphate pyrophosphate. The positive electrode particles are spheroidal or spherical. The positive electrode satisfies: b≤c•α/180°, where b denotes a depth to which the positive electrode particles are embedded into the positive current collector, α denotes an included angle between tangents at two points farthest away from each other on an intersection line of the preset surface and a surface of each of the positive electrode particles partially embedded, and c denotes a distance between an intersection of the tangents at two points farthest away from each other on the intersection line and the preset surface.
Absstract of: EP4672548A1
A histogram generation unit generates a histogram of a residence time of a state of charge (SOC) of a battery based on battery data. An actual SOC range calculation unit specifies, as an actual SOC use range, an SOC range that falls within a predetermined appearance probability from the histogram. A recommended SOC range calculation unit calculates a recommended SOC use range in which deterioration is further suppressed than the actual SOC use range while referring to deterioration characteristics of the battery based on the actual SOC use range and a statistical charge and discharge pattern based on the battery data. A charge recommendation degree generation unit generates the charge recommendation degree that increases or decreases in accordance with the SOC of the battery, the charge recommendation degree having a lower limit SOC of the recommended SOC use range as a charge start recommendation value and an upper limit SOC of the recommended SOC use range as a charge end recommendation value.
Absstract of: EP4672358A1
A negative electrode for secondary batteries is provided, the negative electrode being able to be inhibited from swelling.The negative electrode for secondary batteries comprises a negative-electrode current collector and a negative-electrode mix layer disposed on the negative-electrode current collector, and is characterized in that the negative-electrode mix layer comprises a negative-electrode active material, which includes a carbon material and an Si-based material, and an organic compound having a solubility in water of 0.05 g/100 mL or less. The negative electrode is also characterized in that a pore diameter distribution of the negative-electrode mix layer determined by mercury porosimetry has two peaks R1 and R2.
Absstract of: EP4672477A1
In the present invention, a cylindrical battery (10) comprises: an electrode (14); an electrolyte; a bottomed cylindrical outer casing can (16) that accommodates the electrode (14) and the electrolyte; a seal (17) that closes off an opening of the outer casing can (16); and an upper insulating plate (18) that is disposed in between the electrode (14) and the seal (17). The seal (17) is provided with a safety valve. The upper insulating plate (18) includes a base material (50) having a through hole (60), and a film (53) that blocks the through hole (60). The film (53) is constituted from a thermoplastic resin that melts at a lower temperature than the base material (50) does.
Absstract of: EP4672294A1
A first fuse device (40A) includes a narrow portion (414A) that functions as a fuse, and a first wide portion (412A) electrically connected to the narrow portion (414A) and having a cross-sectional area greater than the cross-sectional area of the narrow portion (414A). A first curve (404A) is provided from the outer edge of the narrow portion (414A) to the outer edge of the first wide portion (412A).
Absstract of: EP4671460A1
A heat insulation material, a preparation method therefor, a heat insulation member, a heat insulation product, a battery and an electrical apparatus. The heat insulation material may comprise heat insulation powder and reinforced phase fibers, the heat insulation powder being loaded on the surfaces of the reinforced phase fibers; and, in parts by mass, the heat insulation powder may be 25-120 parts, and the reinforced phase fibers may be 0.5-40 parts. The heat insulation material has high compactness, and obviously ameliorates the powder falling phenomenon; and moreover, loading the heat insulation powder on the surfaces of the reinforced phase fibers can reduce the agglomerating space and area of the heat insulation powder, thus reducing the agglomeration of the heat insulation powder, and effectively improving the uniformity of the overall performance of the heat insulation material.
Absstract of: EP4672430A1
Provided in the present invention are an energy storage thermal management system and method. The energy storage thermal management system comprises a controller, a battery, a power electronic device, and a shunting apparatus. The controller determines the operating mode of the energy storage management system, the operating mode being any one of a preset first mode, second mode and third mode; and according to the operating mode of the energy storage thermal management system, controls a corresponding path of the shunting apparatus to be turned on, so that in the first mode, the battery performs heat exchange in a compression cooling mode and the power electronic device performs heat exchange in a liquid-cooled heat exchange mode; in the second mode, the battery and the power electronic device both perform heat exchange in the liquid-cooled heat exchange mode; and in the third mode, the power electronic device and/or an electric heater perform heat exchange with the battery. The present invention can select different heat exchange modes for the battery and the power electronic device according to different operating modes, so as to meet the heat dissipation requirements of the battery and the power electronic device.
Absstract of: EP4671301A1
The present invention discloses a meta-aramid polymer with a grid structure, and a preparation method therefor and use thereof, and belongs to the technical field of lithium battery materials. In the process of forming the meta-aramid polymer, alkyl is introduced among macromolecules through alkylation, such that adjacent molecular chains are linked by a chemical bond so as to form a grid structure. A coating slurry prepared from the meta-aramid polymer with a grid structure, a pore-forming agent and a cosolvent are coated on the surface of a polyolefin porous separator so as to obtain a high-performance lithium battery coated separator. Compared with a coated separator prepared by a traditional method, the coated separator prepared by the present invention has higher heat resistance, thermal shrinkage resistance and puncture strength, has better wettability with an electrolyte, and thus can prolong a cycle life of a battery. The coated separator of the meta-aramid with a grid structure can further improve the oxidation resistance, is beneficial to realizing high potential and improves energy density.
Absstract of: EP4672362A1
The present invention discloses a preparation method of a silicon-carbon composite material and a silicon-carbon composite material. The preparation method includes: preparing a porous carbon-doped porous copper complex, and depositing nano-silicon on the porous carbon-doped porous copper complex according to a silane pyrolysis method, to obtain the silicon-carbon composite material. The preparation of the porous carbon-doped porous copper complex includes at least operation steps of: S11). uniformly mixing carbon disulfide, activated carbon, and a binder, and pressing an obtained mixture into copper foam to form a sheet-like structure; and S12). transferring the sheet-like structure obtained in the step S11) to a carbonization apparatus, and performing heating and carbonization in an inert atmosphere to obtain the porous carbon-doped porous copper complex. In the present invention, the following obvious defects and problems are significantly alleviated: The nano-silicon cannot be completely deposited in porous carbon when only pure porous carbon is used as a substrate for depositing the nano-silicon, thus affecting expansion and high-temperature preservation performance of the silicon-carbon composite material due to exposure of the nano-silicon; and the use of a pure porous metal for depositing the nano-silicon leads to poor consistency and low efficiency.
Absstract of: GB2642080A
A cell stack (Fig. 2, 200) comprising parallel prismatic cells (Fig. 2, 204) with an end plate 300 adjacent to the endmost cell (Fig. 2, 204n) comprising a first temperature sensor 302 adjacent a middle of a first edge 306 and a second temperature sensor 304 adjacent an edge away from the first edge. The second sensor may be adjacent a corner formed by a second 310 and a third side 308. A third sensor (Fig. 5, 505) may be adjacent a corner formed by the third and a fourth 312 side. The stack - optionally in an electric vehicle (Fig. 1, 100) - may have a temperature regulation plate (Fig. 7, 702) along the longitudinal axis, a terminating plate (Fig. 2, 206) at the opposite end of the stack to the end plate, and a Cell Supervisory Circuit module (Fig. 6, 602) on the end plate in communication with the sensors. A battery assembly may comprise a pair of stacks connected by a bus bar (Fig. 8, 704), optionally engaging the stacks adjacent their end plates. A second bus bar may engage the stacks adjacent the middle. One stack may be inversely oriented relative to the other.
Absstract of: GB2642087A
Apparatus comprising a housing 102 with at least one opening and at least one access window 104 transparent to electromagnetic radiation and disposed on a battery via the at least one opening, and contacting an electrolyte whose parameters are monitored by electromagnetic radiation. The apparatus may comprise an insulating polymeric layer 106. The housing may be metallic, optionally aluminium, aluminium alloy, steel alloy or aluminium layer on polymer. The parameters may be conductivity, ionic diffusion coefficients, ionic concentration, molar thermodynamic factor or transference number. The battery may be on a first surface 108A of a polymeric layer, with the housing and access window on an opposite surface 108B such that the layer functions as a dielectric between the window and housing, and the battery. The radiation may be of Terahertz frequency. A method comprising irradiating a prism with a first electromagnetic radiation which propagates through the prism and is scattered at an edge of the window, detecting a second electromagnetic radiation emanating from the prism, and measuring one or more characteristics of the second electromagnetic radiation. Refractive indices of the prism, window and electrolyte may be calibrated. An alert indicating the health and performance of the battery may be generated.
Absstract of: EP4672359A1
The present invention relates to batteries, such as lithium, sodium or zinc batteries. In particular, the present invention relates to an electrode material comprising at least one electroactive material and at least one polymeric material. The invention also relates to an electrode comprising said electrode material and to a battery comprising said electrode.The invention is also directed to a method of manufacturing said electrode material, the method comprising at least one step of mixing the polymeric material with the electroactive material, thereby obtaining the electrode material, and optionally at least one step of pouring the obtained electrode material on a current collector.
Absstract of: EP4672371A1
The present invention discloses a fibrous silicon-carbon composite material and a preparation method therefor. The fibrous silicon-carbon composite material includes a core-shell structure, where a core of the core-shell structure includes a porous carbon fiber and nano-silicon, and a shell of the core-shell structure includes an inorganic lithium salt and amorphous carbon. The present invention has a characteristic of high electronic conductivity, and a lithium-ion battery to which the present invention is applied exhibits an excellent rate capability and excellent cycle performance.
Absstract of: EP4672391A1
Pressing device for a battery cell stack (10) comprising a plurality of prismatic or pouch-type battery cells (11), the pressing device (1) comprising a first pressure plate (2) and a second pressure plate (3), and a first side structure (4) and a second side structure (5) configured to be fixed to the first and the second pressure plate (2, 3). The first side structure (4) and the second side structure (5) expand and are compressed in the stacking direction with an increase and a decrease in the thickness of the battery cells (11) respectively, and comprise a plurality of deformable elements (7) which for each width of the first side structure (4) and the second side structure (5) behave as deformable elements of positive stiffness, negative stiffness, or zero stiffness.
Absstract of: EP4672288A1
Ein elektrochemisches Energiespeicherelement 100 umfasst ein einen Innenraum 103 umschließendes Gehäuse mit einem Gehäuseboden 104 und einem Gehäusedeckel 102, die jeweils eine in den Innenraum 103 weisende Innenseite und eine Außenseite aufweisen, und einem einwandigen Gehäusemantel 105. In dem Innenraum 103 angeordnet sind mindestens eine positive und mindestens eine negative Elektrode, die über einen Elektrolyten miteinander verbunden sind. Der Gehäuseboden 104 oder der Gehäusedeckel 102 weisen ein Loch 107 auf. Auf der Innenseite des Gehäusebodens 104 oder des Gehäusedeckels mit dem Loch 107 ist eine Isolierschicht 108 um das Loch 107 herum angeordnet. Ein Metallplättchen 109, das an dieser Innenseite, nur getrennt durch die Isolierschicht 108, anliegt, bildet einen Lochboden, der das Loch 107 auf der Innenseite verschließt. Ein Stromleiter 110, der mit einer der Elektroden elektrisch verbunden ist, ist an die dem Loch 107 abgewandte Seite des Metallplättchens 109 angebunden. Neben dem Energiespeicherelement 100 werden auch Verfahren zu seiner Herstellung beschrieben.
Absstract of: EP4672546A1
A battery module and an aerosol provision device comprising such a battery module is described. The battery module includes a battery and one or more electric circuit that are responsive, at least in part, to an input, to cause a persistent change in the one or more circuits to prevent charging of the battery and/or to prevent transfer of electrical power from the battery to the aerosol provision device.
Absstract of: EP4672545A1
A battery module is described that is connectable to an aerosol provision device for generating aerosol. The battery module comprises a battery (for providing electrical power to the aerosol provision device), a data storage medium, and a controller (configured to obtain and store battery data in the data storage medium).
Absstract of: EP4672382A1
The present invention relates to an all-solid battery comprising: a casing comprising a tubular body comprising a first through hole, an outer tubular surface and an inner tubular surface defining an internal volume of the tubular body, first and planar case portions each comprising a through hole arranged to match the first through hole of the tubular body; a first and second metallic conductors comprising a hollow tubular body and provided coaxially within the internal volume of the tubular body of the casing and provided adjacent to the outer tubular surface and the inner tubular surface of the tubular body of the casing, respectively; a first cell unit comprising a first cathode current collector, a first cathode adjacent to the cathode current collector, a first solid state electrolyte (SSE) adjacent to the first cathode, optionally a first anode adjacent to the first SSE, and a first anode current collector adjacent to the first anode, wherein each component of the first cell unit comprises a hollow tubular body and is provided coaxially within the internal volume of the tubular body of the casing.
Nº publicación: EP4671512A1 31/12/2025
Applicant:
VOLVO TRUCK CORP [SE]
VOLVO TRUCK CORPORATION
Absstract of: EP4671512A1
A device (1) for exchanging vehicle fluids (111, 121), comprising- a first fluid port (10) to connect to a first assembly (110) of a vehicle (100), the first assembly (110) containing a first vehicle fluid (111),- a second fluid port (20) to connect to a second assembly (120) of the vehicle (100), the second assembly (120) containing a second vehicle fluid (121),- a first fluid control arrangement (12) configured to selectively permit fluid flow from the first assembly (110) to the first fluid port (10) and to selectively permit fluid flow from the first fluid port (10) to the first assembly (110), and- a second fluid control arrangement (22) configured to selectively permit fluid flow from the second assembly (120) to the second fluid port (20) and to selectively permit fluid flow from the second fluid port (20) to the second assembly (120).
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