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1807
results.
Updated on
12/05/2025 [07:18:00]
Results 875 to 900 of 1807
Absstract of: WO2025089820A1
The present invention relates to a cathode active material and a lithium secondary battery comprising same and, more specifically, to a cathode active material and a lithium secondary battery comprising same, wherein, by adjusting the content of a fine powder within the cathode active material containing a Mid-Ni type lithium transition metal oxide having a relatively low nickel content and controlling the particle size distribution of the lithium transition metal oxide contained in the cathode active material, improved capacity characteristics and lifetime characteristics, and improved driving characteristics at high voltage can be achieved.
Absstract of: WO2025089809A1
The present invention relates to a method for manufacturing a sulfide-polymer hybrid electrolyte membrane and a sulfide-polymer hybrid electrolyte membrane manufactured thereby. More specifically, disclosed is a method for manufacturing a sulfide-polymer hybrid electrolyte membrane, the method comprising: a first step of preparing a polymer electrolyte solution by mixing a polymer binder and a lithium solution including a lithium salt, an organic solvent, and an ionic liquid and then further adding a nonpolar solvent, and warming and stirring; a second step of preparing a sulfide-polymer hybrid electrolyte slurry by adding a sulfide-based solid electrolyte to the polymer electrolyte solution and stirring; a third step of forming a membrane by applying the hybrid electrolyte slurry onto a substrate and drying; and a fourth step of separating the membrane from the substrate, wherein the sulfide-polymer hybrid electrolyte membrane is manufactured in which the sulfide-based solid electrolyte is uniformly distributed in the polymer electrolyte.
Absstract of: WO2025087349A1
An energy storage device (100), an energy storage system (2000), and a charging network (1000). The energy storage device (100) comprises a control module (30), a plurality of compartment bodies (10), and a plurality of energy units (2). The plurality of compartment bodies (10) are arranged in a first direction of the compartment bodies (10). The plurality of energy units (2) are accommodated in at least one compartment body (10). The control module (30) is used for electrically controlling the plurality of energy units (2). The size of at least one compartment body (10) among the plurality of compartment bodies (10) in the first direction is smaller than the size of one standard container in the first direction, the sum of the sizes of the plurality of compartment bodies (10) in the first direction is larger than the sum of the sizes of one or more standard containers in the first direction, and the first direction is the length direction, the width direction or the height direction of the compartment bodies (10).
Absstract of: WO2025086847A1
Provided in the present application is a battery pack, comprising an enclosure plate, a liquid cooling plate and a battery cell, wherein the battery cell is arranged on the liquid cooling plate; the enclosure plate encloses the liquid cooling plate and the battery cell, and the liquid cooling plate is connected to the enclosure plate; an accommodating cavity is provided between the enclosure plate and the battery cell; the liquid cooling plate is in communication with and is provided with a liquid output pipe and a liquid intake pipe; the liquid output pipe and the liquid intake pipe are both located in the accommodating cavity; and a connecting assembly is provided on each of the top surface and bottom surface of the enclosure plate. An electrical connector and a liquid cooling connector can both be enclosed by the enclosure plate so as not to be exposed to the outside; moreover, connecting assemblies capable of fitting with each other are provided on both the top surface and the bottom surface of the enclosure plate, and the cooling plate is fixedly connected to the enclosure plate, so that the effect of vertical stacking and assembly of two battery packs can be achieved by means of the fitting between connecting assemblies of enclosure plates of the two battery packs, thereby simplifying the operation of assembling the battery packs into a battery module.
Absstract of: WO2025086861A1
Disclosed in the present application are a battery cooling method and apparatus based on an energy storage system, which method and apparatus are applied to a server of an energy storage system. The method comprises: acquiring a cooling requirement and a preset storage amount of each battery cluster among a plurality of battery clusters; determining as a target battery cluster a battery cluster among the plurality of battery clusters of which the cooling requirement is not met; and when it is detected that the storage amount of a refrigerant in a liquid storage apparatus of the target battery cluster is a preset storage amount of the target battery cluster and the cooling requirement of the target battery cluster is not met, executing at least one adjustment and detection operation until the cooling requirement of the target battery cluster is met. In the present application, a refrigerant in a liquid storage apparatus of a battery cluster of which the cooling requirement is met is mobilized so as to be able to fully cool a battery cluster of which the cooling requirement is not met, such that it is not necessary to perform calculation and adjustment on the refrigerant in the entire energy storage system, thereby reducing the calculation pressure and increasing the cooling speed.
Absstract of: WO2025086373A1
A current collecting tab, and a cylindrical battery and an assembly method therefor. The current collecting tab comprises a case welding area and a wing part extending out of at least one end of the case welding area; the wing part is used for being welded to a full tab of a jelly roll; the wing part is provided with a first side edge; an included angle is formed at the joint of the first side edge and the case welding area; and the formation of the included angle allows for elastic deformation between the wing part and the case welding area. In the present application, when the wing part is welded to the full tab of the jelly roll, and the case welding area is welded to the bottom wall of a case, elastic deformation can occur between the case welding area and the wing part to release generated stress, thereby avoiding direct pulling of the position where the wing part is welded to the full tab. In addition, due to vibration of a vehicle in which an assembled cylindrical battery is mounted and other factors, the jelly roll jumps and the wing part is driven to jump together, elastic deformation can also occur between the case welding area and the wing part to release impact stress, thereby avoiding the risk of open circuit at the position where the case welding area is welded to the bottom wall of the case, and improving the anti-vibration performance of the cylindrical battery.
Absstract of: WO2025086345A1
The present disclosure relates to the technical field of batteries, and provides a battery cell, a battery, and an electric device. The battery cell comprises: a casing, a first cover plate, a first terminal, an electrode assembly, a first insulating member, and a first insulating support. The casing comprises a first opening; the first cover plate is sealingly mounted on the first opening; the first terminal is mounted on the first cover plate; the electrode assembly is arranged in the casing, a first tab extends from the side of the electrode assembly close to the first cover plate, at least part of the first tab is fixedly connected to the first terminal, and a first tab free end is formed; the first insulating member is mounted on the side of the first cover plate close to the electrode assembly; and the first insulating support is arranged between the first insulating member and the electrode assembly, wherein the first tab free end is provided with an insulating structure. The insulating structure in the present disclosure insulates and isolates the first tab free end from the casing, and there is no need to carry out a tab cutting process, reducing the production costs, and improving the safety performance of the battery.
Absstract of: WO2025086086A1
Disclosed herein is a recovery method for a waste ternary battery, belonging to the technical field of material recovery. The method comprises: disassembling a waste ternary battery to obtain an electrode sheet; then carrying out vacuum impurity removal, and separating and recovering an active substance; and finally, by means of a specific restoration means, restoring and regenerating the active substance. The method not only can effectively avoid using treatment reagents, such as strong acid and strong base, of high contamination rates and high cost rates, but also involves mild processing conditions and can be implemented in atmospheric-pressure states, and a restored and regenerated positive electrode material has a low impurity content and excellent electrochemical performance.
Absstract of: WO2025089127A1
A power storage element according to one aspect of the present invention includes: a plurality of electrode body units that each have an electrode body in which a positive electrode and a negative electrode are stacked, and a separation layer which is superposed on the outermost surface of the electrode body; and a container that houses the plurality of electrode body units and has a safety valve. The plurality of electrode body units adjacent to each other are in contact with each other at the separation layer. The separation layer has a resin layer and an inorganic material layer. With respect to the plurality of electrode body units adjacent to each other, the total thickness of the separation layers that separate the electrode bodies from each other is 50 µm to 110 µm inclusive.
Absstract of: WO2025089397A1
Provided is a vehicle temperature control system (100) comprising: a first refrigeration cycle (10); a second refrigeration cycle (20); an in-vehicle heat exchanger (32) to which a cooling medium CM that has exchanged heat with a second refrigerant (R2) in a second low-pressure-side heat exchanger (24) is supplied when the vehicle temperature control system (100) performs a cooling operation; and a blower (34) that blows air to a first low-pressure-side heat exchanger (14) and to the in-vehicle heat exchanger (32) so as to guide the air into the vehicle cabin. The in-vehicle heat exchanger (32) is disposed on the upstream side of the first low-pressure-side heat exchanger (14) in the direction (AD) of the air flow that is guided by the blower, and when the vehicle temperature control system (100) performs a cooling operation, the air cooled by the cooling medium (CM) in the in-vehicle heat exchanger (32) is further cooled by a first refrigerant (R1) in the first low-pressure-side heat exchanger (14).
Absstract of: WO2025089077A1
In the present invention, a power supply device comprises a plurality of secondary battery cells that each have a terminal, heat-conductive battery holders that accommodate the plurality of secondary battery cells, a holder case that accommodates the battery holders, and an exterior case that houses the holder case. The invention comprises a waterproof structure for waterproofing at least the areas that include the terminals of the plurality of secondary battery cells accommodated in the battery holders. The areas are within the battery holders and are positioned between the holder case and each of the battery holders. First cooling air paths through which cooling air flows are formed in the holder case between the inner surface of the holder case and the surfaces of the battery holders. An exterior case exhaust port communicating with the first cooling air paths is formed in the exterior case.
Absstract of: WO2025089507A1
The present disclosure relates to an electrode comprising: a first coating portion which is formed by coating an active material on a first substrate; and a first electrode terminal portion which is formed by cutting a portion of a first uncoated portion of the first substrate, where the active material is not coated, and the end portion of which has a shape that can be exposed to the outside of the battery or can extend to the outside of the battery.
Absstract of: WO2025086745A1
The present application relates to the technical field of lithium-ion batteries, and specifically relates to a cylindrical lithium-ion battery having improved high-temperature storage performance and high-temperature cycle performance. The cylindrical lithium-ion battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte solution, wherein the negative electrode comprises a negative electrode material layer containing a negative electrode active material, the negative electrode active material comprising a silicon-based material; and the non-aqueous electrolyte solution comprises a lithium salt, an organic solvent and an additive, the organic solvent comprising dimethyl carbonate, and the additive comprising a silane compound represented by structural formula 1. The cylindrical lithium-ion battery satisfies the following condition: 0.04≤(100-D)×F/S≤5, wherein 50≤D≤75, 0.01≤F≤0.5, and 5≤S≤20. In the cylindrical lithium-ion battery of the present application, the electrolyte solution contains the silane compound represented by structural formula 1 as an additive and dimethyl carbonate as the organic solvent, and therefore the problem of battery failure caused by the expansion of the silicon-based negative electrode can be improved, the service life of the battery can be prolonged, the battery is ensured to have good high-temperature performance, and the effect of inhibiting gas production during high-temperature storage is obvious
Absstract of: WO2025086643A1
The present disclosure provides an energy storage cooling device and a control method and system therefor. The device comprises: a control unit, used for interacting with a battery management system; a main circulation unit, comprising a main pump, a first circulation pipe, a second circulation pipe and a third circulation pipe, wherein the main pump is connected to the control unit and used for conveying low-temperature cooling water to a cooling plate of a cooled unit through the first circulation pipe on the basis of a control instruction, and the second circulation pipe is used for outputting high-temperature cooling water on the cooling plate; and a cooling unit, connected to the control unit and used for cooling the high-temperature cooling water on the basis of a cooling instruction, to obtain low-temperature cooling water, and conveying the low-temperature cooling water to the main pump through the third circulation pipe. The present disclosure improves the control efficiency of the energy storage cooling device, and can be widely applied to the technical field of energy storage cooling.
Absstract of: WO2025087161A1
Disclosed in the present application are a battery pack and an electric device. The battery pack comprises a circuit board, a battery cell assembly, a sensor, a first bonding member and a second bonding member, wherein the circuit board has a first surface and a second surface that face away from each other in a first direction; the battery cell assembly comprises a plurality of battery cells, each battery cell comprises a battery cell casing and electrode terminals extending out of the battery cell casing, and the electrode terminals are connected to the circuit board; the first surface, the second surface and battery cell casings are arranged in the first direction; the sensor is arranged on the first surface; the first bonding member comprises a first portion, and the first portion covers the sensor; the second bonding member bonds the battery cell casings with the circuit board, and at least part of the second bonding member is located on the first surface; and the first portion is exposed from the second bonding member. In the battery pack, the first portion has a protection effect on the sensor, which is conducive to reducing the effect of the second bonding member on the sensor, and reducing the effect of the second bonding member on the measurement precision of the sensor.
Absstract of: WO2025086032A1
A device for separating positive electrode current collectors of batteries by means of high-voltage pulse, comprising a treatment tank (1), a rotating table (3), a collection tank (2), a pulse discharge part, and a pressing plate (4). The rotating table (3) is arranged in the treatment tank (1) in a liftable/lowerable manner, a plurality of current collector placement positions are arranged on the upper side of the rotating table (3), all the current collector placement positions are distributed at intervals around the axis of the rotating table (3), and a positive electrode contact (301) and a negative electrode contact (302) are arranged in each current collector placement position. The collection tank (2) is arranged around the outer circumferential side of the treatment tank (1), and the collection tank (2) is used for collecting aluminum foils separated from positive electrode current collectors (100). A positive electrode output end of the pulse discharge part is electrically connected to each positive electrode contact (301), and a negative electrode output end of the pulse discharge part is electrically connected to each negative electrode contact (302). The pressing plate (4) is arranged at the upper side of the rotating table (3) in a liftable/lowerable manner, and the pressing plate (4) is used for pressing the positive electrode current collectors (100) on the rotating table (3).
Absstract of: WO2025086029A1
A composite multi-element positive electrode material, a preparation method, and a use. The multi-element positive electrode material is modified, and near-surface doping is combined with coating using a specific fast-ion conductor material. The near-surface doping improves the stability of the structure of the multi-element material, improves a lattice state, and achieves a certain supporting effect; by building a fast-ion conductor coating layer, the interface stability of the multi-element positive electrode material is further improved, damage to an interface of the multi-element positive electrode material in a rolling process is effectively reduced, exposure and surface slip properties of a fresh interface are reduced, and then the storage performance under a high voltage is improved. By combining near-surface doping with coating using a fast-ion conductor, the obtained composite multi-element positive electrode material has excellent rolling resistance and excellent storage performance under a high voltage of 4.5 V, and the fast-ion conductor with which the surface is coated is beneficial to further improving the capacity per gram.
Absstract of: WO2025086100A1
A copper-based sodium positive electrode material, and a preparation method therefor and a use thereof. The chemical structural formula of the copper-based sodium positive electrode material is NaxMyCunO2, wherein M comprises at least three of Li, K, Al, Ti, Cr, Mn, Fe, Co, Ni, Zn, Mg, Sn, Zr, Mo, Nb, Y, W, In, and Ge, 0.5≤x≤1, 0≤y<1, and y+n=1.
Absstract of: WO2025089150A1
This power storage device comprises a power storage element and a holding unit that is disposed outside the power storage element and holds the power storage element. The power storage element comprises an electrode body in which electrode plates are wound, and a container that houses the electrode body. The electrode body has a flat shape that comprises a pair of flat portions facing each other and a pair of curved portions facing each other. The container comprises flat wall portions facing the flat portions of the electrode body, and curved wall portions facing the curved portions of the electrode body. The inner surfaces of the flat wall portions have a flat shape that follows the flat portions. The inner surfaces of the curved wall portions have a curved shape that follows the curved portions. The inner surfaces of the holding unit comprises flat surfaces having a flat shape that follows the outer surfaces of the flat wall portions of the container, and curved surfaces having a curved shape that follows the outer surfaces of the curved wall portions of the container. The inner surfaces of the flat wall portions of the container press the flat portions of the electrode body, and the inner surfaces of the curved wall portions of the container press the curved portions of the electrode body. The flat surfaces of the holding unit press the outer surfaces of the flat wall portions of the container, and the curved surfaces of the holding unit press the outer surfaces of the cu
Absstract of: WO2025089504A1
The present disclosure relates to an apparatus for manufacturing a secondary battery case, and a technical problem to be solved is to provide an apparatus for manufacturing a secondary battery case capable of simultaneously performing a molding process and an imprinting process for a case. To this end, the present disclosure comprises: a die having a first surface and a second surface opposite to each other; a punch hole formed through the first surface and the second surface; a punch that is disposed to face the first surface and presses a workpiece toward the punch hole in a first direction; a knockout member that is disposed to face the second surface and presses the workpiece in a second direction opposite to the first direction; and a stamp member that is installed on the knockout member, and imprints a pattern on the workpiece as the knockout member comes in contact with the workpiece.
Absstract of: WO2025089400A1
Provided is a vehicle temperature regulating system (100) comprising a first refrigeration cycle (10), a second refrigeration cycle (20), and a blower (34) that blows air through a first low-pressure-side heat exchanger (14) of the first refrigeration cycle (10) and a second low-pressure-side heat exchanger (24) of the second refrigeration cycle (20) and guides the air into a vehicle interior, wherein: the second low-pressure-side heat exchanger (24) is disposed upstream of the first low-pressure-side heat exchanger (14) in a flow direction (AD) of the air guided by the blower (34); and when the vehicle temperature regulating system (100) is performing a space cooling operation, the air cooled by a second refrigerant (R2) in the second low-pressure-side heat exchanger (24) is further cooled by a first refrigerant (R1) in the first low-pressure-side heat exchanger (14).
Absstract of: WO2025089078A1
Provided is an electricity storage device in which a plurality of storage batteries are respectively detachably connected in parallel, the electricity storage device comprising: a control means for controlling the storage batteries; and, corresponding to each storage battery, a discharging circuit through which a discharging current from each storage battery flows and a charging circuit through which a charging current to each storage battery flows. Each discharge circuit is configured so as to prevent backflow of power to the corresponding storage battery.
Absstract of: WO2025086904A1
A lithium battery capacity prediction method and system. The method comprises: performing charging and discharging processing on a lithium battery under test, and then recharging same to an SOC required for self-discharge screening (S10); acquiring a discharge capacity corresponding to a formation discharge cutoff voltage, and a discharge temperature when discharge ends (S20); on the basis of a temperature compensation formula, using the discharge temperature to calibrate and compensate for the discharge capacity, so as to obtain a compensated discharge capacity (S30); and putting the compensated discharge capacity into a pre-fitted capacity prediction formula, so as to obtain a full-discharge capacity of said lithium battery (S40). By means of extracting some effective feature values under a formation process, i.e., a discharge capacity corresponding to a discharge cutoff voltage, and a corresponding discharge temperature when discharge ends, the actual graded capacity of a battery cell can be predicted according to a pre-established capacity prediction model.
Absstract of: WO2025086796A1
Provided in the embodiments of the present application are a liquid cooling plate assembly, a server and a data center. The liquid cooling plate assembly comprises: a cold plate and a cover body; the cold plate is provided with a cavity used for accommodating a cooling liquid and ports used for connecting to liquid cooling pipes, the ports leading to the cavity; the cold plate further comprises a recess part, the ports being located in the recess part; the cover body covers the recess part and forms with the cold plate an accommodating space for accommodating an overflowing liquid. The present application solves the problem that liquid cooling solutions in the prior art have liquid leakage damage.
Nº publicación: WO2025086635A1 01/05/2025
Applicant:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Absstract of: WO2025086635A1
Provided are a separator assembly, a battery cell, a battery and an electric device. The separator assembly comprises a first separator, wherein the first separator comprises a first base film and a first coating, the first coating is located on the surface of at least one side of the first base film, the first coating comprises an inorganic material, and the volume average particle size Dv50 of the inorganic material satisfies: Dv50≤0.16 μm. The separator assembly can reduce the risk of short-circuiting a battery cell without deteriorating the rate performance of the battery cell, so that the battery cell has relatively good overall performance.
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