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575
results.
Updated on
14/09/2026 [07:52:00]
Results 500 to 525 of 575
Absstract of: EP4803915A1
A battery system 100 disclosed here includes a battery cell 10, a temperature sensor 60, a reference power supply 80, a first detection resistor 111, a second detection resistor 112, and a short circuit detector 120. The temperature sensor 60 is attached to the battery cell 10 via an insulating member and measures the temperature of the battery cell 10. The reference power supply 80 applies a reference voltage Vref to the temperature sensor 60. The first detection resistor 111 is located between the reference power supply 80 and the temperature sensor 60. The second detection resistor 112 is located between ground (GND) of the battery cell 10 and the temperature sensor 60. The short circuit detector 120 performs a first voltage acquisition process, a second voltage acquisition process, and a short circuit detection process.
Absstract of: EP4804287A1
0001 The present disclosure relates to a positive electrode slurry, a positive electrode for rechargeable lithium battery, and a method for manufacturing a positive electrode for a rechargeable lithium battery. A positive electrode slurry includes a positive electrode active material, a conductive material, a binder, and an additive for preventing gelation. The positive electrode active material includes a nickel-based first positive electrode active material having a layered structure, and a phosphate-based second positive electrode active material. A weight ratio of the first positive electrode active material to the positive electrode active material is in a range of about 50 wt % to about 95 wt %. The additive for preventing gelation includes at least one of oxalic acid, succinic acid, malic acid, fumaric acid, or a combination thereof.
Absstract of: EP4803654A1
0001 It is an object of the present invention to provide a novel coating material having heat resistance, adhesion resistance, durability, chemical resistance, low friction, and releaseability applied to a base material, and to provide a manufacturing method and manufacturing system for such a coating material. 0002 The present invention provides a ternary nanocoposite coating material comprising C-F-H or C-F-Si applied to a base material.
Absstract of: EP4803482A1
The present application provides a precursor and a preparation method thereof, a positive electrode material, a positive electrode plate, and a lithium-ion battery. The preparation method includes: mixing a plurality of first raw material components, and drying to obtain a first precursor MnxFeyMzPO4·nH2O, wherein the plurality of first raw material components include an iron source, a manganese source, a phosphorus source, an M source, and hydrogen peroxide. M represents a metal element, x is 0.10-0.95, y is 0.10-0.95, z is 0.01-0.10, the sum of x, y, and z is 0.95-1.06, and n is any integer from 0 to 10.
Absstract of: EP4804275A1
An electrolyte solution and a sodium-ion battery. The electrolyte solution comprises a sodium salt, an additive, and an organic solvent, wherein the sodium salt comprises sodium hexafluorophosphate and sodium bis(fluorosulfonyl)imide, and the additive comprises pentaerythritol bicyclic sulfate; and the electrolyte solution comprises: in percentage by mass, 2-15 wt% of sodium hexafluorophosphate, 0.1-20 wt% of sodium bis(fluorosulfonyl)imide, 0.1-5 wt% of pentaerythritol bicyclic sulfate, and the balance being an organic solvent. The electrolyte solution has relatively strong stability in a room-temperature or high-temperature environment, so that stringent environmental requirements in stages of the preparation, transportation, and storage of electrolyte solutions are reduced to a certain extent, the production cost can be effectively controlled, and when the electrolyte solution is applied to a sodium-ion battery, the cycling stability of the battery can be improved.
Absstract of: EP4804274A1
A battery comprises a positive electrode plate and an electrolyte solution, wherein the positive electrode plate has an XRD pattern comprising two diffraction peaks at 15°-20° and 40°-43°, with the peak intensity of the diffraction peak at 15°-20° being H1, and the peak intensity of the diffraction peak at 40°-43° being H2; the electrolyte solution comprises propylene carbonate, with the content by weight of propylene carbonate being A, based on the total weight of the electrolyte solution; and the battery satisfies: H1/H2 + A ≥ 0.6. The interfacial reactions of the battery can be reduced, thereby improving the cycling stability and storage performance of the battery.
Absstract of: EP4804256A1
0001 The present application provides a sodium secondary battery and an electric device. The sodium secondary battery comprises a negative electrode sheet and an electrolyte; the negative electrode sheet comprises a negative electrode film layer; the negative electrode film layer contains a silicon element; and the electrolyte comprises a first component, and the first component is a fluorinated carbonate compound. According to the sodium secondary battery, the volume expansion rate after high temperature storage of the battery can be reduced, and the cycling stability of the battery is improved.
Absstract of: EP4804276A1
0001 An electrolyte, a sodium secondary battery and an electric device. The electrolyte comprises a first additive, a second additive and a third additive, wherein the first additive comprises a cyclic ester compound containing a sulfuric acid group and/or a sulfurous acid group, the second additive comprises a difluorooxalate borate, and the third additive comprises a sultone compound containing a carbon-carbon double bond. The first additive, the second additive and the third additive are used in cooperation, such that not only can the stability of an SEI membrane be effectively improved, but a stable CEI membrane can also be formed, greatly reducing the gas production degree during a cycling process and storage process of a sodium secondary battery, thereby improving the storage performance, quick charge performance and cycling performance of the sodium secondary battery.
Absstract of: EP4804271A1
0001 A sodium secondary battery and an electrical apparatus. The sodium secondary battery comprises a negative electrode sheet and an electrolyte. The negative electrode sheet comprises a negative electrode active material, the negative electrode active material, in a voltage range of 0.5 V-0.05 V, first discharges at a rate of 0.05 C, and then the ratio of actual specific discharge capacity measured using a three-stage stepwise discharge method to discharge at currents of 40 µA and 10 µA, to the total specific discharge capacity of the negative electrode active material, is a. The electrolyte comprises a first component, which comprises a compound represented by formula I. On the basis of the total mass of the electrolyte, the mass content of the first component is b, and a and b satisfy: 0.45≤a+b≤1.5. The sodium secondary battery has a decreased volume expansion rate after being stored at a high temperature, and exhibits improved charging performance at low temperatures and cycle stability.
Absstract of: EP4803487A1
Provided in the present disclosure is a method for preparing a modified cobalt-free lithium-rich manganese-based precursor. The prepared modified cobalt-free lithium-rich manganese-based precursor can effectively reduce the large amount of manganese series oxides adhering among and to surfaces of primary particles, causing the primary particles to be uniform and compact. Meanwhile, a specific surface area of the precursor reaches 40-80 m2/g, and a tap density is greater than 1.3 g/cm3. The precursor prepared by using a method of letting an oxidant solution and a reducing agent solution to flow in parallel into a reaction system in the present disclosure has the characteristics of being low in cost, environment-friendly, and pollution-free, and conventional protection methods of introducing inert gases such as nitrogen and the like are replaced at the same time, thereby effectively reducing safety risks of the reaction system due to a large pressure. To sum up, the cobalt-free lithium-rich manganese-based precursor prepared using the method can not only guarantee excellent indicators and morphology, but also reduce a manufacturing cost, which is in line with the concept of green and sustainable development.
Absstract of: EP4804258A1
0001 The present invention relates to an electrode material layer composition for a secondary battery and a secondary battery comprising the same, and more particularly, to a binder composition having a novel composition that comprises a ternary copolymer and is capable of improving adhesion between an electrode and a metal current collector, as well as binding strength among respective components within the electrode, regardless of whether it is applied in a wet process or a dry process, while stably maintaining electrical conductivity and thereby providing excellent electrochemical properties; and to an electrode material layer composition for a dry process comprising the binder composition, and a secondary battery comprising the same.
Absstract of: WO2025094101A1
A method and system for quality control of a winding (2) of at least one strip (3, 4) of material for the production of electrical energy storage devices around a winding axis (A); the winding (2) has two base surfaces (9, 10) opposite to each other and transverse to the winding axis (A) and a lateral surface (11) joining the base surfaces (9, 10); the method includes an acquisition step, wherein at least one image of the strip (3, 4) comprising at least part of the lateral surface (11) of the winding (2) is acquired by means of at least one sensor (12); a processing step, wherein the image is processed to control the quality of the winding (2) and at least one measurement value relating to an axial position and/or an axial dimension of an element (20) of thestrip (3, 4) is determined as a function of the image; the quality of the winding (2) is controlled as a function of the measurement value.
Absstract of: GB2635137A
An electrode media 201 for a lead acid battery includes a fiber web 205 comprising 15-90 wt.% of microglass fibres having an average length of less than or equal to 0.5 mm, an average diameter of 0.1 to 15 microns, an average aspect ratio of less than or equal to 50. The fibre web further includes 0-90 wt.% staple fibres and 0-50 wt.% multicomponent fibres, each with respective average diameters of at least 1 micron. The electrode media may be pasted to produce an electrode. In a further electrode media a fibre web includes glass fibres and 2-20 wt.% multicomponent fibres and the multicomponent fibres are present at a first edge of the web and absent at a second edge. In a further electrode media a fibre web has 5% plasticity and a basis weight of 40 gsm and includes glass fibres and any of synthetic fibres, natural fibres or a second type of glass fibre. An electrode for use in a lead acid battery includes a fibre web including glass fibres and any of synthetic fibres, natural fibres or a second type or glass fibres wherein an electrically conductive lug 211 interpenetrates a boundary portion of the fibre web.
Absstract of: EP4549625A1
The method involves producing a porous structure by mixing polymerisable monomers with particles of electrochemically active metals or compounds. The mixture is heated to a polymerisation temperature to form a solid green body with embedded particles. This phase is then heated to a sintering temperature to cause sintering of the particles. The polymerisable monomer is chosen such that the solid green body has a decomposition temperature smaller than or equal to the sintering temperature of the metals or compounds. The particles can have a size between 5 nm and 100 micron, and may include nano particles with a size between 10 nm and 50 micron. The method can also involve mixing 20-80 wt.% of metals or metal oxides with 20-80 wt.% of polymerisable monomer. The resulting electrode can have a thickness of at least 30 micron and a porosity of between 30 and 90%.
Absstract of: EP4804312A1
0001 An electric system, having a battery pack, wherein the battery pack has a battery assembly. The battery assembly comprises a plurality of battery cells stacked in the vertical direction, a support member and an adhesive member. In the battery assembly, the adhesive member and the support member jointly cooperate to prevent two stacked adjacent battery cells from separating from each other, and a gap is also formed in the central area of opposite surfaces of the two adjacent battery cells to provide a reserved expansion space, thereby preventing the two adjacent battery cells from squeezing each other due to excessive expansion force. In addition, the support member is positioned close to a first side wall to ensure that the reserved expansion space formed in the central area of first surfaces is relatively reliable.
Absstract of: EP4804313A1
0001 A battery pack according to an embodiment includes: a plurality of battery cell laminates each of which includes a plurality of battery cells; a lower plate on which the plurality of battery cell laminates are arranged; and a plurality of heat dissipation pads arranged between the respective battery cell laminates and the lower plate, and contacting the battery cell laminates, wherein the lower plate includes a plurality of vacuum adsorbing holes arranged corresponding to the respective heat dissipation pads, and a vacuum device combined to the plurality of vacuum adsorbing holes, and adsorbing the heat dissipation pad on the lower plate by removing air between the lower plate and the heat dissipation pad.
Absstract of: EP4804317A1
0001 The present application provides a separator, a preparation method therefor, and a battery. The separator includes a base film and a lithium supplementing layer located on a surface of at least one side of the base film, and a lithium element content in the lithium supplementing layer is 100-20000 ppm. According to the present application, the separator can be used for lithium supplementation of batteries, thereby reducing battery internal resistance and improving battery performance such as first-cycle coulombic efficiency and cycle life.
Absstract of: EP4804252A1
The present application provides an anode active material, a method for preparing the same, an electrode and a battery. The anode active material particles comprise a porous carbon framework, nano grains of pure silicon and an amorphous carbon film. The anode active material particles comprise silicon-deficient particles, a mass content of silicon in the silicon-deficient particles is at most 15%, and a quantity percentage Dlack of the silicon-deficient particles in the anode active material particles is at most 35%, and a product DS of a total silicon mass content Wtotal in the anode active material multiplied by the quantity percentage Dlack of the silicon-deficient particles is at most 0.15. The percentage of the silicon-deficient particles in the provided anode active material is controlled, thereby improving the deposition uniformity of the nano grains of pure silicon in the anode active material, avoiding the presence of a large number of ineffective porous carbon particles, and also preventing severe enrichment of the nano grains of pure silicon in some particles. Therefore, the Coulombic efficiency and cycling stability of the material are enhanced, and the expansion rate is reduced.
Absstract of: EP4804245A1
0001 A positive electrode, a lithium battery and a device. A positive electrode comprises a positive electrode current collector, and a lithium replenishment layer and a positive electrode material layer which are sequentially stacked on at least one side of the positive electrode current collector, wherein the lithium replenishment layer comprises a first positive electrode lithium replenishment agent, the positive electrode material layer comprises a positive electrode active material and a second positive electrode lithium replenishment agent, the initial coulombic efficiency of the first positive electrode lithium replenishment agent is less than 30%, and the second positive electrode lithium replenishment agent can be decomposed to generate gas.
Absstract of: EP4804310A1
0001 A battery assembly (100), a battery pack (300), and an electric system (400). The battery assembly (100) comprises a plurality of battery cells (10) stacked in a vertical direction, and further comprises supporting members (20) and bonding members (30). Any battery cell surface between two adjacent battery cells (10) is a first surface (11), and supporting members (20) and bonding members (30) are provided on the first surface (11); the supporting members (20), the bonding members (30) and the first surface (11) together define a clearance region (111) located on the first surface (11), and the area ratio of the area of the clearance region (111) to the area of the first surface (11) is within 3:20 to 18:25.
Absstract of: EP4804278A1
A battery cell, a battery pack, and an electrical device. The battery cell includes: a housing; an electrode core; and a temperature-sensitive deformable member; wherein the housing defines an accommodation cavity, the electrode core is accommodated in the accommodation cavity, the temperature sensitive deformable member is accommodated in the accommodation cavity and is connected to the electrode core, and, as a temperature of the electrode core increases, at least part of the temperature sensitive deformable member expands so as to approach the housing, and/or at least part of the temperature sensitive deformable member contracts so as to withdraw from the housing.
Absstract of: EP4804110A1
0001 Disclosed is an electronic device for supporting power transaction, the electronic device comprising: a transceiver; a processor; and a memory for storing one or more instructions, wherein the one or more instructions are configured to, when executed, cause the processor to: identify a plurality of power prediction data during a first period corresponding to a plurality of energy storage systems (ESSs), respectively; on the basis of first power prediction data during the first period corresponding to a first ESS among the plurality of ESSs, identify at least one second ESS matching the first ESS; identify power transaction intention information from each of a first terminal associated with the first ESS and a second terminal associated with the second ESS; and determine whether to perform power exchange between the first ESS and the second ESS, on the basis of the power transaction intention information identified from the first terminal and the second terminal.
Absstract of: WO2025093466A1
The invention relates to a housing (2) for a battery module (10) of a motor vehicle (1), comprising a base (3), a cover (4) and at least one attachment tab (5) for attaching the housing (2) to the inside of the vehicle (1), wherein the attachment tab is configured to receive an attachment means (6) and is configured to be attached to a body structure (11) of the vehicle (1), wherein a first surface (51) of the at least one attachment tab (5) is configured to be arranged facing or in contact with the body structure (11), and/or wherein a second surface (52) of the at least one attachment tab (5) comprises at least one secondary coating layer (54).
Absstract of: EP4804247A1
0001 Disclosed are a positive electrode for an all-solid-state battery, a positive electrode composition, and an all-solid-state battery comprising the positive electrode, the positive electrode for an all-solid-state battery comprising a current collector and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer comprises: a positive electrode active material; a sulfide-based solid electrolyte; a dispersion medium including a compound represented by chemical formula 1; a binder; an electrolyte salt; at least one of a mono- or higher functional (meth) acrylate having an alkylene glycol group, an oligomer thereof, and a cross-linked product thereof; and a conductive material.
Nº publicación: EP4802574A1 09/09/2026
Applicant:
FORTESCUE ZERO LTD [GB]
Fortescue Zero Limited
Absstract of: US20250141240A1
0000 A method can include modeling a state of each battery cell within a battery pack and contemporaneously with discharging a first subset of battery cells of the battery pack either providing a differential drain on the first subset of battery cells such that battery cells of the first subset of battery cells are discharged faster than a second subset of battery cells or charging the second subset of battery cells (e.g., using the first subset of battery cells) where battery cells are identified as in the first subset or the second subset based on the states of the battery cells.
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