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960
resultados
Última actualización
06/08/2025 [07:11:00]
Resultados 625 a 650 de 960
Resumen de: WO2025152475A1
An energy storage device, a control method for an energy storage device, and an electric device. The energy storage device comprises a battery (21), an energy storage device positive electrode end (22), an energy storage device negative electrode end (23), and an on-off device (24); when the state of the battery (21) is normal, the energy storage device supplies power to the electric device through a first loop, wherein the first loop comprises the energy storage device positive electrode end (22), the energy storage device negative electrode end (23), a positive electrode end of the battery (21), and a negative electrode end of the battery (21); and when the state of the battery (21) is abnormal, the on-off device (24) is in an on state, and the energy storage device supplies power to the electric device through a second loop, wherein the second loop comprises the energy storage device positive electrode end (22), the energy storage device negative electrode end (23), the positive electrode end of the battery (21), the negative electrode end of the battery (21), and the on-off device (24). When the energy storage device is used in the whole vehicle, the energy storage device can still supply power to the whole vehicle through the second loop when the state of the battery (21) is abnormal, thereby reducing the probability of traffic accidents caused by power loss of the whole vehicle.
Resumen de: WO2025152817A1
An electric system, comprising a battery pack, wherein the battery pack comprises battery cells, and each battery cell comprises an electrode core and a casing; the electrode core is arranged in the casing, the electrode core and a first surface of the casing are spaced apart from each other, and the first surface of the casing is a first surface of the battery cell; and the thermal resistance of the spacing area between the electrode core and the first surface of the casing is A, the thermal resistance of the electrode core in a direction perpendicular to the first surface is B, and A and B satisfy the relational expression: 1/48＜A/B.
Resumen de: WO2025152554A1
A battery cell (100), a battery (1000) and a vehicle. The battery cell (100) comprises a first core (11), a second core (12), a lead-out piece (13), a first tab (14) connected to an end of the first core (11), and a second tab (15) connected to an end of the second core (12), wherein the lead-out piece (13) is connected between the first tab (14) and the second tab (15), and the first core (11) and the second core (12) can be fitted together, forming an accommodating space (16) between the first tab (14), the second tab (15), the lead-out piece (13), the first core (11) and the second core (12); and a support member (20) is located in the accommodating space (16) and configured to support the first tab (14) and the second tab (15). The battery cell (100) has the accommodating space (16), the support member (20) is located in the accommodating space (16), and the support member (20) can support the first tab (14) and the second tab (15) while functioning to protect a weld seam and prevent welding residues from falling off, thus avoiding compression of the first tab (14) and the second tab (15) into the first core (11) and the second core (12), improving the safety of the battery cell (100).
Resumen de: WO2025154837A1
Disclosed are a lithium secondary battery having a low-humidity oxidation coating layer, the battery having a lithium metal negative electrode oxidized at low humidity to improve the performance and lifespan of a cell due to the LiOH and Li2O coating layer formed on the surface of the lithium metal negative electrode, an all-solid-state secondary battery, and a method for manufacturing a lithium secondary battery having a low-humidity oxidation coating layer. The method for manufacturing a lithium secondary battery having a low-humidity oxidation coating layer of the present invention comprises: a first step (S10) of preparing a lithium negative electrode by cutting lithium foil; a second step (S20) of exposing the lithium metal negative electrode to air having a temperature of 20°C to 25°C and a humidity of 15% to 25%; and a third step (S30) of depositing an amorphous metal alloy on the surface of the lithium metal negative electrode obtained in the second step (S20) to a thickness of 10 μm to 15 μm by means of sputtering.
Resumen de: WO2025154996A1
The present invention relates to an electrolyte additive, an electrolyte comprising same, and a secondary battery. The present invention has the effect of providing a secondary battery in which a stable film is formed on a positive electrode and a negative electrode of a lithium secondary battery such that side reactions inside the battery are suppressed and the charge and discharge resistance are low, and thus charging efficiency and output may be improved, an increase in the resistance of the battery can be suppressed even when the battery is stored for a long time under high-temperature conditions, and gas generation due to decomposition of electrolyte components is significantly suppressed, and thus the secondary battery not only has a long lifespan and an excellent high-temperature capacity retention rate, but also has excellent low-temperature performance.
Resumen de: WO2025154664A1
The present invention measures the impedance of an impedance element to be measured in a state in which a non-measured subject is connected in parallel to the subject to be measured via a connection line. The present invention comprises: a measurement-current output unit 2 that supplies an AC current Im for measurement to electrochemical cells C in a state in which a power-supply device PD is connected in parallel via a connection line Lc to a subject DUT to be measured, which is formed by connecting the electrochemical cells in series; a voltage measurement unit 3 that measures a voltage value V at both ends of the electrochemical cells; a current sensor 4-1 that measures a supply current value of the AC current for measurement; and a processing unit 5 that calculates the impedance of the electrochemical cells on the basis of the voltage value V and the supply current value. The measurement-current output unit 2 supplies the AC current for measurement to measurement-current supply points Po1, Po2 prescribed so that one or more electrochemical cells are included in a current path IR2, and supplies the AC current for measurement to a portion of the plurality of electrochemical cells other than said one or more electrochemical cells, said portion serving as electrochemical cells to be measured.
Resumen de: WO2025152820A1
A secondary battery and an electronic apparatus. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, a separator and an electrolyte. The negative electrode sheet comprises a negative current collector and a negative electrode material layer arranged on at least one surface of the negative current collector; the negative electrode material layer comprises a negative electrode active material, the specific surface area of the negative electrode active material being c m2/g; the negative electrode active material comprises a basal plane and an edge plane, the proportion of the edge plane being a. The electrolyte comprises fluoro linear ester; on the basis of the mass of the electrolyte, the mass percent of the fluoro linear ester is d%, 5≤d≤65, 0.0015≤c/d≤2, and 0.0015≤a/d≤0.12. The electrolyte comprising the fluoro linear ester and controlling the values of d, c/d, a/d within said ranges can improve the cycle performance of secondary batteries under high-voltage and high-temperature conditions and also help to improve the quick charging performance of the secondary batteries.
Resumen de: WO2025152818A1
An electrical power system (200), comprising a battery assembly (100). The battery assembly (100) comprises battery cell groups (110), each battery cell group (110) comprises a plurality of battery cells (10), each battery cell (10) comprises an electrode assembly (11) and a casing (12), the electrode assembly (11) is arranged in the casing (12), and the electrode assembly (11) and a first surface (121) of the casing (12) are spaced apart from each other. A plurality of battery cell groups (110) are provided, and first surfaces (13) of the battery cells (10) in two adjacent battery cell groups (110) are arranged opposite to each other. The sum of the temperature difference caused within a preset time by the thermal resistance of a spacing region between the electrode assembly (11) and the first surface (121) of the casing (12) and the temperature difference caused within the preset time by the thermal resistance of the first surface (121) of the casing (12) is A, the temperature decreased in the region between the first surfaces (13) of the battery cells (10) in two adjacent battery cell groups (110) within the preset time is B, the minimum temperature of the first surface (13) of the battery cell (10) at the moment when the battery cell (10) triggers thermal runaway is T, and the tolerance temperature of a material system of the battery cell (10) is N, wherein A, B, T, and N satisfy the relational expression: T-N≤A+B≤500.
Resumen de: WO2025152717A1
The present application provides an energy balancing system and an energy storage system. The energy balancing system is arranged outside an energy storage device; the energy balancing system comprises a switch circuit and a balancing circuit; the switch circuit enables electrical connection between positive and negative electrodes of a target energy storage unit and a first end of the balancing circuit, and the target energy storage unit is any energy storage unit in the energy storage device; and the balancing circuit is used for performing charging processing or discharging processing on the target energy storage unit. The switch circuit can achieve the sharing of the balancing circuit between the energy storage units, and improve the utilization rate of the balancing circuit. In addition, in the energy balancing system, a balancing circuit having relatively large power is used to replace a balancing module provided in each energy storage unit, so that costs can be reduced, the balancing power is improved, and the balancing time is shortened.
Resumen de: WO2025154586A1
A power storage device (10) is provided with: a positive electrode (21) that has a positive electrode active material layer (21b); a negative electrode (22) that has a negative electrode active material layer (22b); a separator (23) that is disposed between the positive electrode (21) and the negative electrode (22); and a liquid electrolyte that is disposed between the positive electrode (21) and the negative electrode (22). The basis weight of the negative electrode active material layer (22b) is 200 g/m2 or more. The negative electrode active material layer (22b) contains graphite particles, carbon fibers, and a negative electrode binder. The liquid electrolyte contains lithium difluorophosphate and vinylene carbonate.
Resumen de: WO2025154798A1
This method for producing lithium carbonate (S04) comprises: a first carbonation reaction step (S41) for adding a soluble carbonate compound to a lithium-containing liquid in which calcium ions are also present and heating to produce calcium carbonate; a first solid-liquid separation step (S42) for separating the calcium carbonate generated in the first carbonation reaction step (S41) and the lithium-containing liquid; a second carbonation reaction step (S43) for adding a soluble carbonate compound to the lithium-containing liquid separated in the first solid-liquid separation step (S42) and heating to produce lithium carbonate; and a second solid-liquid separation step (S44) for separating the lithium carbonate generated in the second carbonation reaction step (S43) and the mother liquor.
Resumen de: WO2025154800A1
This lithium-concentrated liquid production method (S03) is characterized by comprising: a carbonation reaction step (S31) in which a soluble carbonic acid compound is added to a lithium-containing liquid having calcium ions coexisting therein to produce calcium carbonate; a solid-liquid separation step (S32) in which the calcium carbonate produced in the carbonation reaction step (S31) and the lithium-containing liquid are separated; a decarbonation step (S33) in which an inorganic acid is added to the lithium-containing liquid separated in the solid-liquid separation step (S32) and the dissolved carbonic acid compound is removed from the lithium-containing liquid as carbon dioxide gas; and a membrane separation step (S34) in which, after the decarbonation step (S33), a reverse osmosis membrane is used to obtain a lithium-concentrated liquid in which lithium ions in the lithium-containing liquid are concentrated.
Resumen de: WO2025154577A1
Provided are: a solid electrolyte having high ion conductivity and filling properties, and having a crystallite diameter of more than 180 Å and less than 477 Å as measured by X-ray diffraction measurement using a CuKα ray of a test piece formed to have a thickness of 1.0-2.0 mm by performing uniaxial compression molding treatment at a molding pressure of 1000 MPa and a molding time of 5 minutes; an electrode mixture and a lithium-ion battery using the same; and a method for manufacturing a modified solid electrolyte.
Resumen de: WO2025152443A1
An end plate (011), an end plate assembly (001) and a battery pack. The end plate (011) is applied to the battery pack. The battery pack comprises a battery case (004), wherein an insertion block (041) is provided on an inner wall of the battery case (004). The end plate (011) comprises an end plate body (111), wherein the end plate body (111) is provided with a first side wall (1111) and a second side wall (1112) which are arranged opposite to each other. The first side wall (1111) is provided with an abutting area for a battery cell stack (003), and the second side wall (1112) is provided with a snap-fit slot (116) for insertion of the insertion block (041). The end plate body (111) is provided with a first through hole (115), the snap-fit slot (116) being in communication with the first through hole (115).
Resumen de: WO2025152434A1
Provided in the present application are a battery cover plate, a battery cell, a battery, and an electric device, which solve the problem of a sensor being prone to detaching from a catch. The battery cover plate comprises a plastic plate, a detection element, and a top cover plate, wherein a mounting groove is formed in a first plate surface of the plastic plate; the detection element is mounted in the mounting groove; the top cover plate is arranged on the first plate surface; and part of the top cover plate covers an opening of the mounting groove.
Resumen de: WO2025152577A1
A lithium-nickel-cobalt-manganese positive electrode material and a preparation method therefor, a positive electrode and a battery, relating to the technical field of battery materials. The lithium-nickel-cobalt-manganese positive electrode material comprises a lithium-nickel-cobalt-manganese single crystal and a modification layer located at an internal interface of the lithium-nickel-cobalt-manganese single crystal. The modification layer is generated by a reaction of Li, A, B and oxygen, wherein element A is selected from at least one of elements W, Mo and Re, and element B is selected from at least one of Ba and Ca. The preparation method for the lithium-nickel-cobalt-manganese positive electrode material comprises: uniformly mixing a nickel-cobalt-manganese precursor, a lithium source, an additive A and an additive B, and sintering the mixture. According to the preparation method, a lithium-nickel-cobalt-manganese positive electrode material can be prepared. The preparation method is simple, and the prepared positive electrode material has good electrochemical performance.
Resumen de: WO2025152395A1
The present application provides a film coating device and a film coating method. The film coating device comprises: a feeding mechanism, used for conveying battery cells in the process of coating the battery cells, the feeding mechanism comprising a conveying platform used for placing and conveying the battery cells to move towards the film coating position; a pushing mechanism, used for pushing the battery cells to move towards the film coating position relative to the conveying platform; and a film stretching and coating mechanism, arranged on the tail end side of the moving direction of the conveying platform and used for carrying out film stretching and coating on the battery cells.
Resumen de: WO2025154801A1
This method (S05) for producing purified lithium carbonate comprises: a slurrying step (S51) in which water is added to lithium carbonate that contains 400 mass ppm or more of calcium so as to produce a lithium carbonate slurry; a bicarbonation step (S52) in which a CO2 gas is blown into the lithium carbonate slurry so as to produce lithium bicarbonate, thereby obtaining a lithium bicarbonate solution; a first solid-liquid separation step (S53) in which calcium carbonate suspended in the lithium bicarbonate solution is separated; a purified lithium carbonate crystallization step (S54) in which the lithium bicarbonate solution after the removal of the calcium carbonate is warmed so as to decompose the lithium bicarbonate, thereby precipitating purified lithium carbonate; a second solid-liquid separation step (S55) in which the precipitated purified lithium carbonate is separated from the mother liquid; and a mother liquid returning step (S56) in which the mother liquid obtained in the second solid-liquid separation step (S55) is returned to the slurrying step (S51).
Resumen de: WO2025155174A1
The present document relates to a method for initial stabilization of an aqueous battery by using a liquid electrode. The method may comprise: manufacturing cell blocks of aqueous batteries; performing quality control by repeatedly charging and discharging the manufactured cell blocks a predetermined number of times; shipping cell blocks, which have passed the standards of quality control, in a charged state equal to or exceeding the predetermined standard; and installing the aqueous batteries at an installation position in a state in which the self-discharge rate (SDR) stabilization of the cell blocks is achieved, during a storage and delivery period of the shipped cell blocks.
Resumen de: WO2025155120A1
The present invention relates to an electrode assembly, a secondary battery, and a battery unit and, more specifically, to an electrode assembly, a secondary battery, and a battery unit capable of efficient heat exchange. The electrode assembly according to an embodiment of the present invention comprises: a plurality of electrodes; a separator interposed between the plurality of electrodes; and a plurality of protrusions protruding from the plurality of electrodes to one side. The plurality of protrusions are at least partially non-overlapping in the thickness direction of the plurality of electrodes, and include a first portion extending along the longitudinal direction of the electrodes and a second portion connecting the electrodes to the first portion, and the width of the second portion is less than the width of the first portion.
Resumen de: WO2025154782A1
Provided are a novel magnesium composite oxide or calcium composite oxide, and a method for producing same. The production method is for producing a composite oxide containing magnesium or calcium, and includes: a heating step for heating a precursor compound at a temperature of 500ºC or lower in the presence of a salt that contains magnesium or calcium; and a washing step for washing with a washing liquid that includes water after the heating step. A combination of the precursor compound and the composite oxide is any of (A) to (E).
Resumen de: WO2025154868A1
The present application may provide an electric device comprising: a battery cell capable of securing excellent capacity retention, high current output, and appropriate capacity by combining an electrode responsible for high capacity and an electrode responsible for high current output, and capable of flexibly coping with rapidly changing current output conditions while having appropriate capacity; and an electric vehicle including the battery cell and having excellent output and an improved driving range.
Resumen de: WO2025152394A1
A battery cell (10), a battery (100), and an electrical apparatus (1000). The battery cell (10) comprises: a housing (11), comprising a housing cover (112) and a housing body (111), wherein the housing (11) is provided with electrode columns (12); an electrode assembly (2), comprising a conductive portion (22) and an active substance coating portion (21), wherein the conductive portion (22) is electrically connected to the active substance coating portion (21) and the electrode columns (12); a support (3), arranged within the housing body (111) and located at the end of the active substance coating portion (21) away from the housing cover (112); an insulating piece (4), comprising a main body insulating portion (41), a first insulating portion (42) and a second insulating portion (43), wherein the main body insulating portion (41) is arranged on the peripheral side of the active substance coating portion (21), the first insulating portion (42) is arranged between the support (3) and the end of the active substance coating portion (21) away from the housing cover (112), and the second insulating portion (43) is arranged at the end of the active substance coating portion (21) close to the housing cover (112). The risk of failure and damage of the electrode assembly (2) is reduced, the risk of corrosion of the housing (11) is reduced, and the reliability and stability of the battery cell (10) are improved.
Resumen de: WO2025152427A1
A liquid injection device and a production line. The liquid injection device comprises a vacuumizing air circuit (1), a first-stage cup (2), a second-stage cup (3), a plurality of liquid injection circuits (4) and a plurality of liquid-passing assemblies (5); a plurality of mutually isolated buffer cavities are formed in the first-stage cup (2); a plurality of mutually isolated liquid injection cavities are formed in the second-stage cup (3), and each liquid injection cavity is communicated with the vacuumizing air circuit (1); each liquid injection circuit (4) is communicated with one buffer cavity; the liquid-passing assemblies (5), the buffer cavities, and the liquid injection cavities are arranged in a one-to-one correspondence mode, each liquid-passing assembly (5) comprises a liquid-passing channel (51) and a first switch member (52), the liquid-passing channel (51) is communicated with one buffer cavity and one liquid injection cavity, and the first switch member (52) is arranged in the liquid passing channel (51) so as to selectively open or close the liquid-passing channel (51). By means of the vacuumizing air circuit (1), the first-stage cup (2), the second-stage cup (3), the plurality of liquid injection circuits (4) and the plurality of liquid-passing assemblies (5), liquid preparation and vacuumizing can be carried out simultaneously, the liquid injection duration can be shortened, and one liquid injection device can inject liquid into a plurality of battery cell
Nº publicación: WO2025152428A1 24/07/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2025152428A1
Embodiments of the present disclosure relate to the technical field of batteries, and provide an adhesive application system and an adhesive application method. A supporting device and/or a mounting base is connected to a first driving mechanism, so that one of the supporting device and the mounting base moves relative to the other one of the supporting device and the mounting base. An adhesive roller, a first storage roller and a second storage roller of a material roller assembly are all rotatably connected to the mounting base; the adhesive roller drives an adhesive roll to rotate; the first storage roller winds a first release paper; and the second storage roller winds a second release paper. A pressing roller is rotatably connected to the mounting base, and the pressing roller is used for conveying the second release paper and pressing an adhesive on the second release paper to an adhesive application object. A second driving mechanism is mounted on the mounting base, and the first storage roller and the second storage roller are both drivingly connected to the second driving mechanism, to at least drive the first storage roller and the second storage roller to rotate.
BOPI
Sede Electrónica
