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1839
resultados
Última actualización
25/06/2025 [08:05:00]
Resultados 750 a 775 de 1839
Resumen de: WO2024033090A1
The present invention relates to a binder solution for a secondary battery, comprising at least one non-aqueous solvent and at least one fluoropolymer comprising recurring units derived from a) vinylidene difluorides and b) at least one fluorinated olefin monomer containing at least one -SO2X functional group, X being selected from X' and OM, X' being selected from the consisting of F, Cl, Br, and I; and M being selected from the group consisting of H, an alkaline metal and NH4, wherein b) the fluorinated olefin monomer is present in an amount from 0.1 to 10.0 mol%, the mol% being relative to the total moles of recurring units; to a solid composite electrolyte comprising at least one fluoropolymer according to the present invention and at least one sulfide-based solid ionic conducting inorganic particle; to a slurry for manufacturing a solid composite electrolyte comprising a binder solution according to the present invention and at least one sulfide-based solid ionic conducting inorganic particle, optionally further comprising at least one electroactive material and/or at least one conductive agent; and to an electrode comprising at least one fluoropolymer according to the present invention and at least one electroactive material, optionally further comprising at least one conductive agent and/or at least one sulfide-based solid ionic conducting inorganic particle. The present invention also relates to a secondary battery comprising a positive electrode, a negative electrode
Resumen de: WO2024033089A1
The present invention relates to a solid composite electrolyte comprising a) at least one fluoropolymer and b) at least one sulfide-based solid ionic conducting inorganic particle, wherein a) the fluoropolymer comprises recurring units derived from i) at least 50.0 mol% of vinylidene difluorides, the mol% being relative to the total moles of recurring units; ii) at least one C2-C8 chloro and/or bromo and/or iodo fluoroolefin; and iii) at least one C2-C8 fluoroolefin, wherein i), ii) and iii) are different from each other; to a slurry for manufacturing a solid composite electrolyte comprising a) at least one fluoropolymer according to the present invention and b) a sulfide-based solid ionic conducting inorganic particle, and c) at least one non-aqueous solvent; to an electrode comprising a solid composite electrolyte according to the present invention, d) at least one electroactive material, and optionally e) at least one conductive agent; and to a solid state battery comprising a positive electrode, a negative electrode and a membrane, at least one among which comprises a solid composite electrolyte according to the present invention. The present invention also relates to a binder solution for a solid state battery comprising a) at least one fluoropolymer according to the present invention and c) at least one non-aqueous solvent.
Resumen de: EP4571342A1
Provided are a foldable device controlling charging of battery cells, and a method therefor. The foldable device comprises: a first battery pack which is accommodated in a first housing structure and comprises a first battery cell; a second battery pack which is accommodated in a second housing structure and comprises a second battery cell; a connection part for connecting the first battery cell and the second battery cell in series; and a fuel gauge which is accommodated in the first housing structure and detects a first cell voltage of the first battery cell and a second cell voltage of the second battery cell, wherein wiring connected to a negative electrode terminal of the first battery cell and wiring connected to a positive electrode terminal of the second battery cell are connected to the fuel gauge, and the fuel gauge detects IR voltage between the negative electrode terminal of the first battery cell and the positive electrode terminal of the second battery cell separately from the first cell voltage and the second cell voltage.
Resumen de: EP4571896A1
A power storage device includes a stack 2 and a sealing body 3. A bipolar electrode 21 includes a current collector 24 having a surface 24a and a surface 24b opposite the surface 24a, a positive electrode active material layer 25 provided on the surface 24a, and a negative electrode active material layer 26 provided on the surface 24b. The sealing body 3 includes a sealing member 4. The current collector 24 has a rectangular shape with at least one side exceeding 1 m when viewed in a stack direction D of the stack 2, and includes a first metal foil 241 including the surface 24a, a second metal foil 242 including the surface 24b and thinner than the first metal foil 241, and an adhesive layer 243 provided between the first metal foil 241 and the second metal foil 242 and adhering the first metal foil 241 and the second metal foil 242. The adhesive layer 243 is thinner than the second metal foil 242.
Resumen de: EP4571884A1
A spinel-type lithium and manganese containing composite oxide is provided, with a chemical composition of Li1+xMyMn2-yO4-k, where -0.1
Resumen de: EP4571932A1
The present invention relates to a converter parameter determination method, a control method, a computing device and a storage medium. The parameter determination method comprises: setting an AC/DC output voltage to the minimum value within a preset range; executing a power loss calculation operation, comprising: causing an output voltage of a DC/DC module to reach a preset DC output voltage by means of changing a switching frequency of the DC/DC module; calculating the power loss of a converter on the basis of an input power of an AC/DC module and an output power of the DC/DC module; recording current operating parameters, the operating parameters comprising the AC/DC output voltage, a DC output current of the DC/DC module, the DC output voltage, the switching frequency and the power loss; increasing the AC/DC output voltage and repeating the power loss calculation operation, until the AC/DC output voltage reaches the maximum value in the preset range; comparing all the recorded power losses, and setting the AC/DC output voltage and the switching frequency corresponding to a minimum power loss as optimized operating parameters under the preset DC output voltage operating condition.
Resumen de: EP4570562A1
The invention concerns a hybrid system (1), comprising at least: a body (10); a hydrogen fuel cell; a battery pack electrically connected to the hydrogen fuel cell; wherein the hybrid system (1) further comprises: an electrical panel (40) that is electrically connected to the battery pack and that includes at least one electrical outlet, and an electric inverter located between the battery pack and the electrical panel. The invention further concerns an intervention set comprising such a hybrid system and at least one mobile device.
Resumen de: EP4571899A1
L'invention concerne un doigt (2) d'application d'adhésif. Le doigt (2) est configuré pour appliquer un adhésif sur une ébauche de cellule de batterie. Le doigt (2) comprend un corps (20) dans un premier matériau et un matériau amortisseur (22) qui est différent du premier matériau. Le matériau amortisseur (22) est configuré pour amortir un contact entre le doigt (2) d'application d'adhésif et l'ébauche de cellule de batterie. Le matériau amortisseur (22) est configuré pour amortir une pression qui est exercée par le doigt (2) d'application d'adhésif sur l'ébauche de cellule lorsque l'adhésif est pressé sur l'ébauche de de batterie pour faire adhérer l'adhésif à l'ébauche de cellule de batterie.
Resumen de: EP4571341A1
A process of managing an electrochemical battery (10) comprising measuring at least one first internal resistance (R<sub>HF</sub>(t)) of the battery at at least a first frequency (f<sub>1</sub>) and comparing the measured first internal resistance (R<sub>HF</sub>(t)) with a first reference internal resistance (R<sub>HF</sub>,<sub>REF</sub>); if the first measured internal resistance is less than or equal to the first reference internal resistance, making a decision regarding continued use of the battery; and otherwise measuring at least one second internal resistance (R<sub>LF</sub>(t)) of the battery at least one second frequency (f<sub>2</sub>) lower than the first frequency and comparing a difference D(t) between the measured second and first internal resistances with a reference difference (D<sub>REF</sub>) between a second and the first reference internal resistances (R<sub>LF</sub>,<sub>REF,</sub> R<sub>HF</sub>,<sub>REF</sub>); and if the difference D(t) is greater than or equal to the reference difference, making a decision regarding a disqualification of the battery (10); and otherwise reducing an intensity of a fast charge and/or regeneration current for a subsequent charging step.
Resumen de: EP4571864A1
The invention relates to a method (900) of manufacturing an electrode, the method (900) comprising conveying a substrate foil (110) in a conveying direction (120), applying a first coating layer (130) onto the substrate foil (110) with a first nozzle (140) and applying a second coating layer (160) onto the first coating layer (130) with a second nozzle (170).
Resumen de: CN119404086A
The invention relates to a method for testing the tightness of a battery housing (10), comprising the following steps: carrying out a rough test on the tightness of the battery housing (10), in which the total amount of leakage of gas is determined in such a way that how much gas exits the battery housing (10) in total is measured; presetting at least one parameter for fine testing of the sealing performance of the battery case (10) according to the result of the rough testing in order to locate a leak on the battery case (10); according to the invention, a fine test is carried out in order to locate at least one leak on the battery housing (10), in which fine test, by means of a sensor device (16) (sniffing probe), depending on the at least one set parameter, at least at a predetermined region (20) of the battery housing (10) where the gas escapes the battery housing (10) within the region (20) is checked. The invention also relates to a system (12) designed to carry out such a method.
Resumen de: WO2024050223A2
Methods, systems and apparatus for providing power from a battery pack are described. One example method of connecting batteries in a battery pack include providing a battery pack comprising multiple independent compartments where each compartment is configured to hold at least one battery that has no direct electrical contact with batteries in other compartments of the multiple compartments, detecting, upon a placement of batteries in the multiple compartments, occurrence of the placement, and operating an electronic circuit such that batteries in the multiple compartments are connected together according to a configuration irrespective of polarity orientations by which the batteries were placed in the compartments.
Resumen de: EP4571952A1
A first aspect of the present disclosure is related to a battery cell, comprising:- a plurality of cavities each hosting an electrode stack;wherein at least two of the cavities are separated by a first-dimension pouch foil, which has a pre-defined extension in a first dimension and a pre-defined extension in a third dimension.
Resumen de: EP4571865A1
The invention relates to a system for preparing an electrode foil in a manufacturing line for a measurement step, wherein the electrode foil moves in a conveying direction, the system comprising a spreader roller capable of guiding an electrode foil, wherein the spreader roller is bendable and configured to stretch the electrode foil at least in a local area of the electrode foil in a direction perpendicular to the conveying direction, and a pivot mounted frame, wherein the spreader roller is mounted on the frame, wherein by pivoting the frame, the spreader roller is contactable to the electrode foil.
Resumen de: EP4571973A1
A base plate for a battery system is described. The base plate comprises a base body and at least two channels extending in a first direction and offset to each other in a second direction. The channels are configured for guiding gas such as vent gas away from at least one energy storage unit of the battery system. The at least two channels comprise a main volume and a support structure. The support structure is arranged at a first side of the main volume and comprises a first contact surface and a main surface. The first contact surface is contactable with an energy storage unit. The first contact surface is offset to the main surface in a third direction. The third direction is perpendicular to the first direction and the second direction.
Resumen de: EP4571929A1
The present disclosure refers to a battery module (1) including a plurality of battery cells (2); a flexible interconnect (10) for providing electrical information of the plurality of battery cells (2) to a battery management unit, wherein the flexible interconnect (10) has an elongated shape in the longitudinal direction of the battery module (1), which defines the longitudinal direction of the flexible interconnect (10), and is affixed to the plurality of one battery cells (2). The flexible interconnect (10) includes at least one stress relief section (20) extending along the longitudinal direction of the battery module (1), the stress relief section (20) includes at least one cutout (23) extending along the longitudinal direction of the flexible interconnect (10), and a plurality of interconnect traces (24) divided from each other by the at least one non-linear cutout (23), the plurality of interconnect traces (24) include a first peripheric interconnect trace (24) forming a recessed portion (25) and a second peripheric interconnect trace (24), opposite to the first interconnect trace (24), forming a protruding portion (26), and a height (b) of the protruding portion (26) in the stress relief section (20) is not larger than a width (a<sub>i</sub>) of the flexible interconnect (10) neighbouring the stress relief section (20).
Resumen de: EP4570391A1
The invention relates to a system (100) for manufacturing an electrode, the system (100) comprising a slurry reservoir (110) containing slurry (150), the slurry (150) comprising an electrode coating material and other materials, such as a binder, a solvent, an additive and/or a conductive agent, and a die (120) configured to receive slurry (150) from the slurry reservoir (110) and apply the slurry (160) onto a substrate foil (140), wherein the die (120) comprises deflector elements (130) configured to swirl the slurry (160) leaving the die (120).
Resumen de: EP4570584A1
A battery self-heating control system and control method, and an electric transportation means. The control system comprises: a battery pack (10), a winding (20), a first switch assembly (30), a second switch assembly (40), a capacitor (50) and a controller, wherein the battery pack (10) comprises a first battery group (11) and a second battery group (12), which are connected in series, a connection line is led out between the first battery group (11) and the second battery group (12), and the connection line is connected to one end of the winding (20); the first switch assembly (30) and the second switch assembly (40) are connected in series, the first switch assembly (30) is electrically connected to a positive electrode of the first battery group (11) and a first end of the capacitor (50), and the second switch assembly (40) is electrically connected to a negative electrode of the second battery group (12) and a second end of the capacitor (50); the first end and the second end of the capacitor (50) are used for connecting to a load (100); a midpoint between the first switch assembly (30) and the second switch assembly (40) is connected to the other end of the winding (20); and the controller is electrically connected to the first switch assembly (30) and the second switch assembly (40), so that the battery pack (10) can generate heat.
Resumen de: EP4571986A1
The present application provides a battery cell, a battery and an electrical device. The battery cell includes an electrode assembly, a shell and an insulator. The shell is configured to accommodate the electrode assembly, where the shell includes a wall portion, and the wall portion is provided with a first pressure relief region configured to be opened when the battery cell is under thermal runaway. The insulator is at least partially disposed between the electrode assembly and the wall portion to dielectrically insulate the electrode assembly and the wall portion, where the insulator is provided with a second pressure relief region at a position corresponding to the first pressure relief region, and the second pressure relief region is configured to allow gas to reach the first pressure relief region through the insulator when the battery cell is under thermal runaway. By disposing the insulator of the battery cell between the wall portion and the electrode assembly, the wall portion and the electrode assembly can be dielectrically insulated, thereby improving the safety of the battery cell. When the battery cell is under thermal runaway, the second pressure relief region allows gas to be relieved of pressure from the first pressure relief region through the insulator, which ensures high safety.
Resumen de: EP4570934A1
The present invention relates to a composition comprising lithium carbonate obtained from black mass. The composition can be obtained by a process comprising (i) mixing black mass with a liquid to provide black mass slurry; (ii) converting lithium into a lithium salt in and removing graphite from the black mass slurry of step (i); (iii) separating dissolved lithium carbonate from solids in the black mass slurry of step (ii) to provide a lithium-enriched liquid fraction and a lithium-depleted solid fraction; optionally, reducing the lithium salt in the lithium-enriched liquid fraction of step (iii) to provide elementary lithium; (v) optionally, purifying the lithium salt in the lithium-enriched liquid fraction of step (iii) or the elementary lithium of step (iv); and (vi) optionally, solidifying the lithium salt of step (iii) or (v) or the elementary lithium of step (iv) or (v).
Resumen de: EP4571993A1
The present disclosure relates to a method of attaching and electrically connecting a contact lead (4) to at least one foil (1). To provide a method for quickly and easily attaching and electrically connecting a contact lead (4) to at least one foil (1), in particular a contact tab (3) of a current collector foil (1), wherein the contact tab (3) can be of any material, the method comprises:- creating at least one opening (5) in the foil (1),- positioning the contact lead (4) at the opening (5) such that the opening (5) on a first side of the foil (1) is at least partially covered by the contact lead (4),- positioning a mating piece (6) at the opening (5) such that the opening (5) on a second side of the foil (1) is at least partially covered by the mating piece (6),- welding the contact lead (4) to the mating piece (6).
Resumen de: EP4571861A1
The invention relates to a method of manufacturing an electrode foil. The method comprises conveying a substrate foil in a conveying direction, continuous coating the substrate foil with a coating material in at least one central electrode coating portion, and continuous coating the substrate foil with a polymer material in a first peripheral coating portion of the substrate foil, wherein a thickness of the coated first peripheral coating portion is similar to or larger than a thickness of the coated central electrode coating portion, and wherein a width of the central electrode coating portion is larger than a width of the first peripheral coating portion. The method further comprises applying a pressure to the central electrode coating portion and the first peripheral coating portion, and removing the polymer material from the first peripheral coating portion.Moreover, the invention relates to an apparatus for manufacturing an electrode foil.
Resumen de: EP4571925A1
The invention relates to a method of determining an electrode assembly for a battery cell, the method comprising:providing a plurality of electrode profiles, each electrode profile being associated with an electrode and comprising measurement data of a manufacturing process of the electrode,providing a target cell property of the battery cell,inputting the electrode profiles of the plurality of electrodes and the target cell property into an algorithm, wherein in response the algorithm:determines an electrode assembly according to which the electrodes are to be assembled
Resumen de: EP4571862A1
The invention relates to a method of manufacturing an electrode foil. The method comprises conveying a substrate foil in a conveying direction, and continuous coating the substrate foil with a coating material in at least one central electrode coating portion and a first peripheral coating portion of the substrate foil, wherein a thickness of the coated first peripheral coating portion is similar to or larger than a thickness of the coated central electrode coating portion, and wherein a width of the central electrode coating portion is larger than a width of the first peripheral coating portion. The method further comprises applying a pressure to the central electrode coating portion and the first peripheral coating portion, and removing the first peripheral coating portion at least partially.
Nº publicación: EP4571969A1 18/06/2025
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Resumen de: EP4571969A1
Embodiments of the present application provide a battery, a battery and an electric apparatus. The battery cell comprises a first case, a first electrode assembly, a second case, a second electrode assembly, and an end cover assembly. The first case is provided with a first opening. The first electrode assembly is accommodated within the first case. The second case is provided with a second opening opposite the first opening. The second electrode assembly is accommodated within the second case. The end cover assembly is configured to cover the first opening and the second opening, the end cover assembly includes a connecting assembly, and the connecting assembly is configured to electrically connect the first electrode assembly and the second electrode assembly. The first case and the second case, which are sequentially arranged, can increase the overall size of the battery cell, thereby increasing the space utilization of the battery cell in the battery, and improving the energy density.
BOPI
Sede Electrónica
