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1139
results.
Updated on
08/09/2025 [07:10:00]
Results 300 to 325 of 1139
Absstract of: EP4611071A1
A cathode for a lithium secondary battery according to exemplary embodiments includes a lithium metal oxide containing nickel and having a strain (Q) that satisfies a predetermined relationship. The strain is a maximum value among lattice strains measured within a predetermined voltage range, and the lattice strains may be calculated from an XRD profile of the cathode. The present disclosure may provide a cathode exhibiting improved structural stability, high-temperature stability and cycle characteristics, as well as enhanced high-capacity and high-power characteristics.
Absstract of: EP4611156A1
The present application provides a composite separator, a secondary battery, and an electrical apparatus. The composite separator comprises a separator substrate and a polymer coating located on one side of the separator substrate, the sodium ionic conductivity of the composite separator being 0.3 mS/cm-1 mS/cm. The polymer coating helps to reduce the contact between metal deposited on current collectors and electrolytes, thereby reducing side reactions between the metal and the electrolytes, and improving the cycle performance and the storage performance of batteries.
Absstract of: EP4611073A1
The present application provides a core-shell structured polymer, a conductive slurry, a secondary battery, and an electrical apparatus. The core-shell structured polymer comprises a core and a shell at least partially covering the core. The core contains a building block derived from a monomer represented by formula I and a building block derived from a monomer represented by formula II, and the shell contains the building block derived from the monomer represented by the formula I and a building block derived from a monomer represented by formula III, where R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub> are each independently selected from one or more of hydrogen, fluorine, chlorine, and fluorine-substituted C<sub>1-3</sub> alkyl, and R<sub>4</sub>, R<sub>5</sub>, R<sub>6</sub>, R<sub>7</sub>, R<sub>8</sub> and R<sub>9</sub> are each independently selected from one or more of hydrogen, substituted or unsubstituted C<sub>1-S</sub> alkyl.
Absstract of: CN120226183A
The present disclosure relates to a composite solid electrolyte (CSE) for use in various forms of a battery including a self-supporting CSE separator, an electrode-CSE laminate, a current collector-CSE laminate, or a CSE-based mixed ion-electron conductor (MIEC) electrode. The present disclosure also relates to a method of preparing the composite solid electrolyte and a battery using the same. The disclosed CSE has at least one polymer; at least one lithium salt; a solvent plasticizer; at least one inorganic additive particle; a substrate; and one or more liquid or solid additives. The disclosed method of making a CSE provides at least one polymer, at least one lithium salt, a solvent plasticizer, at least one inorganic additive particle, and one or more liquid or solid additives as a liquid slurry, and coats a substrate with the liquid slurry.
Absstract of: CN120113073A
The present disclosure relates to a functional interface stabilizer for a battery having an organic non-aqueous solvent and a lithium salt soluble with the organic non-aqueous solvent. The present disclosure also relates to a battery having an anode, a cathode, a separator, a functional interfacial stabilizer having an organic non-aqueous solvent, and a lithium salt soluble with the organic non-aqueous solvent. The present disclosure also relates to a method of preparing a functional interface stabilizer comprising the steps of providing an organic non-aqueous solvent, adding a lithium salt to the organic non-aqueous solvent, and mixing the organic non-aqueous solvent with the lithium salt to form a solution.
Absstract of: AU2023366988A1
Disclosed are solutions directed to the recovery of both elemental lead and lead alloy (e.g., antimonial lead) from the grid metallics of recycled LABs. The solutions may comprise in part one or more of the following: a rotating drum for rotationally hammering a mixture comprising the lead paste, the lead alloy, and a solution, wherein the rotational hammering is performed in a manner sufficient to cause the lead paste to no longer physically adhere to the lead alloy; a vessel for receiving the mixture from the drum and vibrating the mixture sufficient to cause material movement within the mixture to facilitate separation of the lead alloy from the lead paste and the solution; and/or a press for pressing the lead alloy into a pressed form.
Absstract of: EP4610097A1
A battery replacing system (100) includes: a battery replacing apparatus (10) including at least one battery pack (101) replaceable with a battery pack (201) mounted on a vehicle (200); a heater (30) that raises a temperature of the battery pack (101); and a controller (20). The controller (20) sets a start-of-raising-temperature time (11), at which the heater (30) starts raising the temperature of the battery pack (101), based on usage status information of the battery replacing apparatus (10) and information regarding an outdoor air temperature.
Absstract of: EP4611084A1
The present invention relates to an electrode assembly and a secondary battery comprising same. Specifically, in a core part of the electrode assembly in which a negative electrode, a separator, and a positive electrode are sequentially stacked and wound, the negative electrode includes: a negative electrode coated part including a negative electrode current collector and a negative electrode active material layer provided on at least one surface of the negative electrode current collector; and a negative electrode uncoated part including the negative electrode current collector on which the negative electrode active material layer is not provided, wherein the negative electrode uncoated part does not include a negative electrode tab, and the longitudinal length of the negative electrode coated part extending from the longitudinal end of the positive electrode is adjusted to a specific range.
Absstract of: EP4611064A1
Embodiments of this application relate to a positive electrode active material, a positive electrode plate, a secondary battery, and an electric device. The positive electrode active material includes a first active material and a second active material. The first active material includes a compound having a molecular formula of Li<sub>1+x</sub>Fe<sub>1-y</sub>A<sub>y</sub>P<sub>1-z</sub>Q<sub>z</sub>O<sub>4</sub> and a modified compound thereof. The second active material includes a compound having a molecular formula of Li<sub>h</sub>Ni<sub>j</sub>Co<sub>k</sub>M1<sub>d</sub>M2<sub>e</sub>O<sub>f</sub>R<sub>g</sub> and a modified compound thereof. The embodiments of this application can improve capacity utilization and cycle performance of a secondary battery.
Absstract of: EP4611130A1
This application discloses a battery cell, a battery, and a power-consuming apparatus. The battery cell includes a housing, a first insulating film, and an adhesive layer. The housing includes a first part and a second part, the first part is connected to the second part, and a surface energy of the second part is greater than a surface energy of the first part. The first insulating film covers at least one part of the housing. The adhesive layer is disposed between the second part and the first insulating film and configured to connect the first insulating film to the second part. Technical solutions provided in this application can improve reliability of the battery.
Absstract of: WO2024091623A1
A method and system for producing a release layer on a carrier film is provided. The release layer is produced through direct fluorination processing of the carrier film prior to deposition of an alkali metal such as lithium. The carrier film is then laminated with a desired anode. The fluorine-based release layer allows efficient release of the deposited lithium from the carrier film after lamination while preventing contamination of the metallic lithium from outgassing by the carrier film. The release layer allows the carrier film to be configured for reuse minimizing hazardous waste and improving cost-efficiency. The carrier film may also be provided with a second fluorinated layer on the back end of the carrier film. This allows the carrier film to also be preserved.
Absstract of: WO2024091574A1
A battery architecture based on the inclusion of a solid polymer electrolyte (SPE) as a safer alternative to that of liquid electrolytes. The construction of the battery enables the battery device to store energy not only electrochemically, but also electrostatically through an electric double-layer capacitance formed by the charge separation on the interface between the electrolyte and electrodes. This architecture allows the storage of additional energy, thus exceeding the theoretical specific capacity of a conventional Li metal battery. An interfacial therapy was modified to improve Li metal stability, and to enhance mass transport at the electrolyte/anode interface.
Absstract of: US2024146089A1
A storage system configured for use with an energy management system is provided herein and comprises a rechargeable battery, a grid detection circuit operably connected to the rechargeable battery such that when an AC power source is not detected by the grid detection circuit and a voltage at the rechargeable battery falls below a threshold voltage, the grid detection circuit places the rechargeable battery into a sleep mode, and a switch operably connected to the grid detection circuit and configured to override the grid detection circuit so that rechargeable battery exits the sleep mode until a voltage at the rechargeable battery is equal to or greater than a predetermined voltage.
Absstract of: WO2024091381A1
An alkali metal-containing film stack for energy storage devices is provided. The alkali metal-containing film stack can be a lithium film stack having a flexible support layer and a release layer disposed over the flexible support layer capable of separating from the flexible support layer. The release layer includes one or more nanosheets, such as two-dimensional materials. An alkali metal-containing layer, such as a lithium layer is disposed over the release layer.
Absstract of: EP4610294A1
The present invention relates to: a binder comprising a polyamide polymer containing a monomer unit including an aromatic ring; a positive electrode slurry comprising same; a positive electrode; and a secondary battery.
Absstract of: EP4611153A1
The present invention relates to a polymer composition, and a slurry composition, a separator and a secondary battery comprising same, the polymer composition comprising: a particle-type polymer comprising a carboxyl group or an alcohol group; and a chain-type polymer comprising a carboxyl group or an alcohol group (if the particle-type polymer comprises the carboxyl group, the chain-type polymer comprises the alcohol group and, if the particle-type polymer comprises the alcohol group, the chain-type polymer comprises the carboxyl group).
Absstract of: EP4611098A1
The technology of the present invention generally relates to the field of power storage devices, and more specifically to a clay mineral modified solid electrolyte comprising a phosphate-based dispersing agent, electrodes, and methods for producing the same. In an aspect of the invention, the method comprises the steps of: mixing an alkoxide compound selected from the group consisting of silica alkoxide, alumina alkoxide, zirconium alkoxide, and mixtures thereof; a polyether compound comprising two end groups of which at least one end group is a functional end group selected from the group consisting of alkoxysilane, alkoxy aluminium, alkoxy zirconium, and combinations thereof; an ionically conductive compound, a metal salt, clay mineral particles, a phosphate-based dispersing agent, and a solvent to form a liquid mixture; causing gelation of the liquid mixture to form a gel mixture; and drying and/or ageing the gel mixture to form a solid electrolyte.
Absstract of: EP4610043A1
Use of a composite as a heat and fire shielding material particularly in batteries, wherein the composite comprises at least one layer of a thermoplastic material, wherein said at least one layer is based on an at least partial consolidation of a mixture of:a. one or more thermoplastic fibers selected from the group consisting of polyphenylene sulfide (PPS), polyether ether ketone (PEEK), polyether ketone-ketone (PEKK), polyether imide (PEI), polyether sulfone (PES), polysulfone (PSU), polyphenylene sulfone (PPSU), polyimide (PI), polycarbonate (PC), polyamide (PA), polyaryletherketone (PAEK) or any combination thereof; andb. one or more reinforcement fibers;wherein at least 90 vol % of the one or more reinforcement fibers have an average length according to a gaussian normal distribution of at least 6 mm, preferably of at least 10 mm, more preferably of at least 20 mm.
Absstract of: EP4611141A1
A battery cell stack (100) is provided. The battery cell stack comprises a plurality of cylindrical battery cells (110) and a cell holder (120). The cell holder comprises a plurality of cylindrical through-holes (122) having a height smaller than a height of a battery cell. Each of the battery cells is arranged in a respective cylindrical through-hole such that the battery cell protrudes at a first side (124) of the cell holder. The battery cell stack further comprises an electrically insulating layer (130) arranged at a second side (126) of the cell holder, and a printed circuit board, PCB, (140) arranged at a first side (112) of the battery cells and configured to electrically interconnect the battery cells. A first adhesive layer (150) is disposed on the electrically insulating layer such that a second side (114) of each of the battery cells is in contact with the first adhesive layer. A second adhesive layer (160) is provided between and in contact with the PCB and the first side of each of the battery cells. Each of the battery cells is electrically connected to the PCB by wire bonding
Absstract of: EP4611107A1
The present invention relates to an electrode assembly and a secondary battery comprising same. Specifically, the present invention relates to an electrode assembly and a secondary battery, wherein a negative electrode in a core part of the electrode assembly in which the negative electrode, a separator, and a positive electrode are sequentially stacked and wound includes: a negative electrode coated portion including a negative electrode current collector and a negative electrode active material layer provided on at least one surface of the negative electrode current collector; and a negative electrode uncoated portion including a negative electrode current collector not provided with the negative electrode active material layer, the longitudinal length of the negative electrode coated portion extending from the longitudinal end of the positive electrode being adjusted to a specific range.
Absstract of: EP4611085A1
A cylindrical rechargeable battery is provided that includes: an electrode assembly having an internal space at an innermost side thereof; a cylindrical can accommodating the electrode assembly; and a deformation preventing member that is made of an elastically deformable material. The deformation preventing member is provided with ends spaced apart from each other and such that the deformation preventing member overlaps itself. The deformation preventing member is positioned in the internal space of the electrode assembly and elastically supports the electrode assembly.
Absstract of: EP4611092A1
An electrode assembly, a method for fabricating the electrode assembly, and a secondary battery including the electrode assembly are disclosed. An electrode assembly includes a pair of electrode plates, a separator between the pair of electrode plates, and an electrode tab including a plurality of conductive wires arranged side by side in a width direction, and each of the plurality of conductive wires includes an overlapping part that overlaps an electrode plate of the pair of electrode plates to be bonded to the electrode plate, and a protruding part connected to the overlapping part and protruding to an outside at a boundary of the electrode plates.
Absstract of: EP4610286A1
The present application provides a polymer and a preparation method therefor, a positive electrode, a secondary battery, and an electrical device. The polymer includes a first polymer. The first polymer includes a structural unit represented by formula (1), where in formula (1), R<sub>11</sub>, R<sub>12</sub>, and R<sub>13</sub> each independently include a hydrogen atom or a substituted or unsubstituted C1-C5 alkyl group; and when substituted, the substituent includes a halogen atom.
Absstract of: EP4611155A1
The present application provides a separator, including: a first porous base membrane and a second porous base membrane; a melting point of the first porous base membrane being higher than a melting point of the second porous base membrane; and in a cross-section in a thickness direction of the separator, an average pore area of the first porous base membrane being greater than an average pore area of the second porous base membrane. The separator can have both the air permeability and mechanical strength, thereby improving the reliability and cycle performance of the separator.
Nº publicación: EP4611118A1 03/09/2025
Applicant:
BYD CO LTD [CN]
BYD Company Limited
Absstract of: EP4611118A1
The present disclosure discloses a temperature regulation member, a battery assembly, and a vehicle. The temperature regulation member includes a thermally conductive plate and a heating film. Each of two sides of the thermally conductive plate in a thickness direction is provided with the heating film. The heating film is configured to heat a battery core. According to the temperature regulation member in embodiments of the present disclosure, the temperature regulation member includes the thermally conductive plate and the heating film, the heating film is configured to heat the battery core, and each of the two sides of the thermally conductive plate in the thickness direction is provided with the heating film. In this way, a heating area of the temperature regulation member can be increased, so that the temperature regulation member has relatively high heating efficiency, thereby improving heating efficiency for the battery core.
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