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1058
resultados
Última actualización
22/11/2025 [07:55:00]
Resultados 850 a 875 de 1058
Resumen de: WO2025231981A1
The present application relates to a hot-pressing device. The hot-pressing device comprises a hot-pressing driving mechanism, a first hot-pressing mechanism, a second hot-pressing mechanism, a film clamping mechanism, and a jacking mechanism. Before battery cells are transferred, first, a support assembly can be driven to jack up a thin film locally, so as to form a transfer supporting surface above a second hot-pressing plate. A gripper first places the battery cells on the transfer supporting surface that may only be in partial contact with the battery cells, allowing the gripper to remain suspended, so that the gripper can be retracted by releasing the gripper. Then, the jacking mechanism retracts to flatten the thin film, and the battery cells are stably supported on the thin film. As the hot-pressing driving mechanism drives a first hot-pressing plate and the second hot-pressing plate to approach each other, the first hot-pressing plate can enable the thin film and the battery cells supported on the thin film to be pressed against the second hot-pressing plate. Thus, during the transfer of battery cells to the second hot-pressing plate, transferring using a thin film can prevent the battery cells from shaking or tipping over, thereby realizing stable placement of the battery cells.
Resumen de: WO2025232030A1
An explosion-proof valve and a battery. The explosion-proof valve comprises a body (100), wherein the body (100) is provided with a tear line (200) and a relief groove (300), wherein the tear line (200) and the relief groove (300) are both racetrack-shaped; the tear line (200) comprises a deep groove section (220) and a shallow groove section (210); and the depth of the shallow groove section (210) is D, the distance between the bottom wall of the shallow groove section (210) and the bottom wall of the body (100) is T1, the distance between the bottom wall of the deep groove section (220) and the bottom wall of the body (100) is T2, and the distance between the bottom wall of the relief groove (300) and the bottom wall of the body (100) is T3, where D>0,T3>T2, and T1>T2. In the explosion-proof valve, the arrangement of the relief groove (300) can prevent fatigue cracking and failure of the tear line (200) due to excessive stress during cell production and pack assembly and under vehicle vibration conditions; the tear line (200) can fracture and open when the body (100) is subjected to pressure exceeding a preset pressure value, thereby ensuring pressure relief in a timely manner when the internal pressure of the cell abnormally increases due to thermal runaway; and the tear line (200) is in a racetrack shape and comprises a deep groove section (220) and a shallow groove section (210), which can effectively reduce the set opening pressure of the explosion-proof valve
Resumen de: US2025349835A1
A secondary battery and an electronic device. The secondary battery includes a negative electrode, a positive electrode, and an electrolyte solution. The negative electrode includes a negative current collector and a negative electrode composite layer disposed on at least one surface of the negative current collector. The negative electrode composite layer contains a conductive agent and silicon-carbon composite particles. An average particle diameter of the silicon-carbon composite particles is D μm. The silicon-carbon composite particles include silicon and carbon. Based on a sum of masses of the silicon and carbon, a mass percent of the silicon is C %, 0.21≤C/D2≤1.2. The electrolyte solution includes propylene carbonate and ethylene carbonate. Based on a mass of the electrolyte solution, a sum of mass percent of the propylene carbonate and the ethylene carbonate is H %, 15≤H≤50.
Resumen de: US2025349839A1
A secondary battery and an electric apparatus are provided. The secondary battery includes a negative electrode plate comprising a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector. The negative electrode film layer includes a lower region and an upper region. The lower region comprises a first negative electrode active material, and the upper region comprises a second negative electrode active material. A median Raman value I_D/I_G of the first negative electrode active material is denoted as R150, and a median Raman value I_D/I_G of the second negative electrode active material is denoted as R250, where R150<R250. The first negative electrode active material has a higher graphitization degree than the second negative electrode active material. The disclosed design improves the fast-charging performance and energy density of the secondary battery.
Resumen de: US2025349824A1
A cathode electrode for a secondary battery, a vehicle battery, and method of forming a cathode electrode. The cathode electrode includes a cathode current collector and a cathode disposed on a surface of the cathode current collector. The cathode includes an active material including at least one of lithium iron phosphate and lithium manganese iron phosphate, a binder including polytetrafluoroethylene, styrene-butadiene-rubber, and at least one of polyacrylic acid and a polyacrylic acid-polyacrylonitrile copolymer, and a conductive filler, wherein the cathode electrode exhibits an areal capacity in the range of 3 milliamp-hours per square centimeter to 10 milliamp-hours per square centimeter. The vehicle battery includes the cathode disposed on a cathode current collector.
Resumen de: US2025349832A1
A lithium-ion secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte. The positive electrode includes a first positive electrode material and a second positive electrode material. The first positive electrode material has good cycling stability and high initial coulombic efficiency, and the second positive electrode material has a high initial charge specific capacity and low initial coulombic efficiency. This can compensate for the active lithium loss caused by the formation of SEI. The lithium-ion secondary battery provided in this application has advantages of good rate performance and long cycle life.
Resumen de: US2025349826A1
Provided are a negative electrode coating layer and an all-solid-state battery including the same, and, for example, a negative electrode coating layer for an all-solid-state battery, including a metal-carbon composite in which a metal and a carbon-based material are chemically bonded through sulfur, wherein a content of sulfur ions measured by negative ion analysis is about 1,000 ppm to about 10,000 ppm, and a root mean square roughness (Sq) of one surface is about 0.6 μm or less.
Resumen de: US2025349852A1
Provided is a secondary battery that makes it possible to achieve a superior battery characteristic. The secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a sulfur-containing polymer compound. The negative electrode includes a magnesium-containing material. The electrolytic solution includes an electrolyte salt. The sulfur-containing polymer compound includes carbon, nitrogen, and sulfur as constituent elements, and includes a carbon-nitrogen bond and a carbon-sulfur bond. The electrolyte salt includes a magnesium ion and a lithium ion as cations, and includes a halogen ion as an anion.
Resumen de: US2025349947A1
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a casing with an inner cavity and a first wall, an electrode assembly disposed in the inner cavity, an isolating structure at least partially positioned between the first wall and the electrode assembly, and an insulating piece. The isolating structure includes a first through hole, and the insulating piece includes a first portion that covers the first through hole. The structure reduces the likelihood of powder migrating from one side of the electrode assembly to the side of the first wall through the through hole, thereby improving the reliability of the battery cell.
Resumen de: US2025349858A1
An electrochemical device mixture with which a mixture sheet exhibiting excellent strength and excellent flexibility can be obtained even though the mixture contains only a small amount of binder. An electrochemical device mixture containing: an electrode active material and/or a solid electrolyte; and a binder, the binder containing a TFE-based polymer composition, the TFE-based polymer composition containing a TFE-based polymer and at least one compound selected from the group consisting of a compound represented by the formula (1) of the disclosure (H—(CF2)m-1—COO)pM1) and a compound represented by the formula (2) of the disclosure (H—(CF2)n—SO3)qM2), the binder being contained in an amount of 0.3% by mass or more and 8% by mass or less.
Resumen de: US2025349908A1
An electrode assembly includes a core and an outer circumferential surface having a positive electrode, a negative electrode, and a separator interposed therebetween. The positive electrode or the negative electrode includes a current collector having a long side and a short side, the current collector further having an uncoated portion. The uncoated portion includes an electrode tab defined section and at least one electrode tab undefined section not used as an electrode tab. A maximum current path for the at least one electrode tab undefined section includes a widthwise direction current path along the short side of the current collector and a lengthwise direction current path along the long side of the current collector, and a current path ratio L2/L1 is approximately 11 or less and greater than 0 when lengths of the lengthwise direction current path and the widthwise direction current path are L2 and L1, respectively.
Resumen de: US2025349924A1
A chiller operation system for an ESS battery and a method of operating the same. The system includes an ESS battery, a battery control unit for controlling charging and discharging of the ESS battery, a chiller unit for cooling the ESS battery according to a cooling control signal during the charging and discharging of the ESS battery, and a cooling control unit for performing heat management by providing the cooling control signal during the charging and discharging of the ESS battery by mutually communicating with the battery control unit but for controlling to switch to a standby mode of the chiller unit only when a cooling stop signal input of the battery control unit and a preset standby mode temperature condition are satisfied, wherein the cooling control unit sets the standby mode temperature condition using a chiller inlet temperature and a chiller outlet temperature.
Resumen de: WO2025234605A1
According to one embodiment of the present invention, a bipolar unit cell and a bipolar battery structured such that two or more bipolar unit cells are stacked therein are provided, the bipolar unit cell comprising: a cathode current collector; a cathode material layer formed on one surface of the cathode current collector; an anode current collector; an anode material layer formed on one surface of the anode current collector; a separator; a stack in which the cathode material layer and the anode material layer are stacked to face each other with a separator therebetween; and a sealing unit, which is attached from the other side of the cathode current collector to the other side of the anode current collector so as to integrally form the stack and seal the inner part thereof, wherein a conductive layer is formed on the outside of the cathode current collector and/or the anode current collector.
Resumen de: WO2025234209A1
This refrigeration cycle apparatus is provided with a refrigeration cycle (10) having a compressor (11), a heating unit (20), a branch unit (13), an auxiliary heat dissipation unit (14), a first decompression unit (15a), a first evaporator (16), a second decompression unit (15b), and a second evaporator (17). The heating unit includes a radiator (12) for radiating the heat of a high-pressure refrigerant compressed by the compressor, and heats an object to be heated by the heat of the high-pressure refrigerant. The auxiliary heat dissipation unit dissipates heat from one of the refrigerants flowing out from the branch unit to an object to be dissipated. The first decompression unit decompresses the refrigerant flowing out from the auxiliary heat dissipation unit. The refrigeration cycle device has a heating mode and a cooling mode. The heating mode includes an operation mode in which inflow of the refrigerant to the auxiliary heat radiation unit is blocked as an operation mode for heating the object to be heated by using the refrigerant discharged from the compressor as a heat source. The cooling mode includes an operation mode in which inflow of the refrigerant to the second evaporator is blocked as an operation mode for cooling a first object to be cooled by the first evaporator.
Resumen de: WO2025234860A1
The present disclosure relates to an electrode. The technical problem to be solved is to provide an electrode with a reinforced substrate. To this end, the present disclosure provides an electrode comprising: a substrate; a coating layer provided on a first region which is a part of the substrate; a reinforcing layer provided on a second region which is another part of the substrate; and a tab provided on the second region and electrically connected to the substrate.
Resumen de: WO2025234560A1
The present disclosure relates to a secondary battery. The secondary battery cell comprises: an electrode assembly including a first electrode and a second electrode; a case including a bottom portion, a side wall portion connected to the bottom portion, and an upper opening opposite the bottom portion, the case accommodating the electrode assembly; and a cap assembly coupled to one end of the side wall portion of the case, wherein the cap assembly may include: a first terminal electrically connected to the first electrode; and a first insulating member disposed between the first terminal and the case.
Resumen de: WO2025231978A1
An intermediate layer for negative electrode interface modification of a sulfide solid-state lithium battery and a preparation method. The preparation method comprises the following steps: S1, mixing graphene, a boron-containing compound, and an adhesive solution to form a suspension; and S2, carrying out film-forming treatment on the suspension to obtain a graphene-boron-containing compound intermediate layer. The graphene has a skeletal support structure, so that the electronic conductivity of the intermediate layer can be effectively improved, thereby improving the rate capability of an all-solid-state battery. The boron-containing compound facilitates formation of a lithium-boron alloy during lithium-ion conduction, thereby effectively providing capacity for the negative electrode, avoiding reduction of the energy density of the battery caused by the implantation of the intermediate layer.
Resumen de: WO2025232003A1
The present application provides a battery pack, comprising at least two layers of battery cell modules and a liquid cooling assembly. A liquid cooling assembly is arranged between every two adjacent layers of battery cell modules; the liquid cooling assembly comprises a first plate, a second plate and a third plate, the second plate being located between the first plate and the third plate, a first cooling flow channel being formed between the first plate and the second plate, a second cooling flow channel being formed between the second plate and the third plate, and the first cooling flow channel and the second cooling flow channel are communicated or not communicated.
Resumen de: WO2025232026A1
A gas sampling device (200), a battery cell (10), a battery (2) and an electrical device. The gas sampling device (200) comprises a gas sampling body (210) and a channel plug (220), wherein the gas sampling body (210) is provided with a gas sampling channel (211) running through the gas sampling body (210), two ends of the gas sampling channel (211) being a first opening (2111) and a second opening (2112), respectively; the gas sampling body (210) is configured to connect to a battery casing (100), such that the gas sampling channel (211) is in communication with the interior of the battery casing (100) through the first opening (2111); and the channel plug (220) is connected to the gas sampling body (210) to seal the second opening (2112), and the channel plug (220) allows a gas sampling member to puncture therethrough into the gas sampling channel (211), so as to perform gas sampling within the gas sampling channel (211). Thus, during a gas sampling operation and when no gas sampling operation is required, the channel plug (220) is used to mitigate the discharge of gas from inside the gas sampling channel (211) through the second opening (2112), thereby reducing the risk of affecting the sealing tightness of the battery casing (100), and reducing the risk of damage to the operating performance of the battery (2).
Resumen de: US2025349828A1
A positive electrode active material comprises a first active material represented by a formula (I) and a second active material represented by a formula (II). The formula (I) and the formula (II) are as specified in the claims. Each of the first active material and the second active material is secondary particles each consisting of 50 or more primary particles aggregated together. An average particle size (D150) of the first active material is smaller than an average particle size (D250) of the second active material.
Resumen de: US2025349823A1
The present technology relates to a dry method of manufacturing a positive electrode for a lithium secondary battery, a positive electrode manufactured thereby, and a lithium secondary battery including the same. Thereby, a positive electrode including a positive electrode mixture layer with an appropriate density, and effective adhesion between the positive electrode mixture layer and the current collector may be realized.
Resumen de: US2025349822A1
A system for dry manufacturing an electrode for an energy storage device includes a substrate configured to move in a feed direction. In addition, the system includes a powder applicator configured to deposit a dry powder onto a surface of the substrate. Further, the system includes at least one pair of spreading rollers. The pair of spreading rollers includes an upper spreading roller and a lower spreading roller positioned below the upper spreading roller. The upper spreading roller and the lower spreading roller are positioned downstream of the powder applicator relative to the feed direction. Each spreading roller has a central axis of rotation and a radially outer surface. The radially outer surface of the upper spreading roller is configured to directly contact and spread the dry powder on the substrate. The upper spreading roller is configured to rotate in a rotational direction that is counter to the feed direction of the substrate proximal the substrate and dry powder and the lower spreading roller is configured to rotate in a rotational direction that is the same as the rotational direction of the upper spreading roller. Still further, the system includes at least one pair of compaction rollers. The pair of compaction rollers includes an upper compaction roller and a lower compaction roller positioned below the upper compaction roller. The at least one pair of spreading rollers are positioned downstream of the upper spreading roller and the lower spreading roller re
Resumen de: US2025349827A1
A positive electrode active material comprises a first active material represented by a formula (I) that is secondary particles each consisting of 50 or more primary particles aggregated together, as well as a second active material represented by a formula (II) that is at least one of single particles and secondary particles each consisting of 2 to 10 primary particles aggregated together. The formula (I) and the formula (II) are as specified in the claims. A content of the first active material in the positive electrode active material is from 20 to 70 mass %. A ratio (D150/D250) of an average particle size (D150) of the first active material to an average particle size (D250) of the second active material is from 2.45 to 5.95.
Resumen de: US2025349821A1
Provided herein are compositions and methods for calendering cathode materials for lithium battery construction.
Nº publicación: US2025349926A1 13/11/2025
Solicitante:
ROBERT BOSCH GMBH [DE]
Robert Bosch GmbH
Resumen de: US2025349926A1
A battery module includes a plurality of prismatically configured battery cells (2), which together form a cell stack (4), and which are accommodated in a housing (3) of the battery module (1). An electrical insulation element (7) is arranged on a battery cell (2) at least on a bottom surface (61) of the battery cell (2) and partially on opposite lateral surfaces (62) of the battery cell (2) in such a way that the electrical insulation element (7) is arranged between the respective battery cell (2) and the housing (3), as well as between the respective battery cell (2) and battery cells (26) adjacent to the battery cell (2). A thermal compensation material (9) is arranged between the battery cell (2) and the housing (3).
BOPI
Sede Electrónica
