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1394
results.
Updated on
23/12/2025 [07:13:00]
Results 275 to 300 of 1394
Absstract of: WO2025258937A1
Provided are a negative electrode for a lithium metal battery and a lithium metal battery comprising same, the negative electrode comprising: a negative electrode current collector; and a protective layer disposed on the negative electrode current collector, wherein the protective layer comprises large particles and small particles, and the large particles and the small particles include a concentration gradient formed in the thickness direction of the protective layer.
Absstract of: WO2025258700A1
A power storage device 10 includes: an electrolyte 12 containing a lithium imide salt and an organic solvent; a container 11 filled with the electrolyte 12; a positive electrode 30 which includes a compound containing lithium atoms that are ionized in the electrolyte 12 and that are involved in charge and discharge; a negative electrode 20 which is arranged in the electrolyte, includes a metal substrate 23 constituting a collector 21, and is configured so that a layer where the lithium atoms are deposited is formed on the surface of the negative electrode during charging; and a separator 15 which has electric insulation properties, divides the inside of the container 11 into a first electrode chamber 16 where the negative electrode is disposed and a second electrode chamber 17 where the positive electrode 30 is disposed, and transmits lithium ions moving between the first electrode chamber 16 and the second electrode chamber 17.
Absstract of: WO2025258236A1
This refrigeration cycle device comprises a main refrigeration cycle (10), a sub-refrigeration cycle (20), and a heat medium circuit (30). The main refrigeration cycle (10) has a main compression unit (11), a first main evaporation unit (15), and a second main evaporation unit (16). The sub-refrigeration cycle has a sub-compression unit (21) and a sub-evaporation unit (26). The heat medium circuit (30) has a low temperature-side heat medium circuit (301) in which a second temperature adjustment heat exchange unit (80a) is disposed. In a second object normal cooling mode, the main compression unit (11) is stopped, the sub-compression unit (21) is operated, and the heat medium cooled by the sub-evaporation unit (26) is made to flow into the second temperature adjustment heat exchange unit (80a). In a second object large cooling mode, the main compression unit (11) is operated, the sub compression unit (21) is operated, and the heat medium cooled by the second main evaporation unit (16) and the heat medium cooled by the sub-evaporation unit (26) are made to flow into the second temperature adjustment heat exchange unit (80a).
Absstract of: US2025385370A1
A battery module may include a first sub-module and a second sub-module each including a battery cell assembly. Additionally, the battery cell assembly may include a plurality of stacked battery cells, a busbar configured to electrically connect the battery cells, and a busbar frame covering the battery cell assembly on at least one side. Further, the battery module may also include a module housing that simultaneously houses the first sub-module and the second sub-module, and a terminal assembly located at a portion overlapping with an area between the first sub-module and the second sub-module. Additionally, an opening may be formed in a part of the module housing, and the terminal assembly is connected to the terminal busbar of each of the first sub-module and the second sub-module through the opening.
Absstract of: US2025385409A1
A battery standing method comprises the following steps: S1: putting a battery subjected to electrolyte injection into an electrolyte injection capsule, and then transferring the capsule and the battery in the to a first transfer conveying line; S2: conveying the capsule and the battery in the capsule to a standing unit through the first transfer conveying line; S3: transporting the capsule on the first transfer conveying line and the battery in the capsule into a standing cavity of the standing unit, and electrically connecting an auxiliary energizing mechanism on the standing cavity with a positive electrode probe and a negative electrode probe of the capsule; and S4: connecting the auxiliary energizing mechanism on the standing cavity with a power supply to supply power to a heating plate of the capsule, and energizing the heating plate to heat the battery in the capsule.
Absstract of: US2025385396A1
A tab welding structure and a battery are provided, relating to the field of battery technology. The tab welding structure includes a wound body with an electrode plate, and a full tab. The full tab is electrically connected to the electrode plate and located at one end of the wound body. A current collector is welded to the full tab to form welding point groups. The welding point groups are arranged in a radial pattern around a center of the wound body. Each welding point group includes welding points arranged in a wave pattern along a radial direction of the wound body. This configuration enhances the uniformity of current conduction in the wound body and reduces the amount of current loss.
Absstract of: US2025385388A1
Embodiments of the present application provide an isolation film, a preparation method therefor, and a secondary battery and an electric apparatus related thereto. The isolation film comprises a first porous base film, a second porous base film, and a coating layer. The coating layer is arranged between the first porous base film and the second porous base film. The coating layer comprises first particles. The first particles comprise at least one of molybdenum disulfide, silicon oxide, a transition metal oxide, or conductive carbon particles.
Absstract of: US2025385400A1
In the present method of manufacturing a secondary battery, a current collector is a first stack in which a plurality of metal plates are stacked, the current collector includes a first region and a second region, a positive electrode tab group is joined to the first region, a positive electrode current collection portion is joined to the second region, the method including: a preparation step of preparing the current collector having a first joining portion in which the metal plates are partially joined together; a first tab group connection step of joining the positive electrode tab group to the current collector; and an other conductive member connection step of joining the positive electrode current collection portion to the current collector. According to the present method of manufacturing the secondary battery, occurrence of damage to the tab group can be suppressed.
Absstract of: WO2025255929A1
A current collector preparation device (100), a current collector preparation method, and a battery cell production line (1000). The current collector preparation device (100) comprises an unwinding mechanism (10), a winding mechanism (20), and coating mechanisms (30); the unwinding mechanism (10) is configured to unwind a base film (200) of a current collector (300); the winding mechanism (20) is arranged downstream of the unwinding mechanism (10) and is configured to wind the prepared current collector (300); the coating mechanisms (30) are arranged between the unwinding mechanism (10) and the winding mechanism (20), and each coating mechanism (30) comprises a plurality of coating assemblies (301); and the plurality of coating assemblies (301) are arranged in a transporting direction of the base film (200) and are respectively configured to release different substances onto the base film (200) to form a plurality of film layers on the surface of the base film (200), and substance release areas of at least two coating assemblies (301) partially overlap.
Absstract of: WO2025256052A1
The present application relates to a drying system and a battery production apparatus. The drying system comprises a turntable, a plurality of drying boxes and a first transfer member. The plurality of drying boxes are arranged at intervals in the rotation direction of the turntable, and are used for drying battery cells. The first transfer member is arranged on the turntable, and is at least used for driving the battery cells into and out of the drying boxes. Embodiments of the present utility model provide a drying system and a battery production apparatus, which can reduce the floor space of the drying system, thereby improving the overall space utilization rate of the system and the battery production efficiency.
Absstract of: WO2025256041A1
The present application is applicable to the technical field of batteries (100), and provides a battery (100) and an electrical apparatus. The battery (100) comprises an electrode assembly (10), a case assembly (30), and fire extinguishing structures (40); the electrode assembly (10) is arranged in the case assembly (30); the case assembly (30) is provided with a first weak structure (31), and at least one fire extinguishing structure (40) is arranged at the first weak structure (31); and/or the electrode assembly (10) is provided with a second weak structure (11), and at least one fire extinguishing structure (40) is arranged at the second weak structure (11). By providing the fire extinguishing structure (40) at the first weak structure (31), a cooling and fire extinguishing operation can be performed at the first weak structure (31). By providing the fire extinguishing structure (45) at the second weak structure (11), a cooling and fire extinguishing operation can be performed at the second weak structure (11). In this way, the thermal runaway reaction and thermal propagation of a battery cell (100a) can be improved, thereby improving the reliability of the battery (100).
Absstract of: WO2025258766A1
The present invention relates to a battery pack which comprises: a pack housing; a plurality of cell blocks accommodated in the pack housing and configured by stacking a plurality of battery cells; and a support members provided between adjacent cell blocks to support the adjacent cell blocks and including a plurality of assembly parts engaged with each other, wherein blocking parts are provided between the assembly parts to block transfer of heat or flame between the adjacent cell blocks.
Absstract of: WO2025257849A1
The present disclosure relates to a field of lithium-ion batteries Particularly, the present disclosure relates to a silicon polymer hydrogel composite material for electrode. The present disclosure also relates to a process of preparation of a silicon polymer hydrogel composite material using a sol-gel-polymerization. The present disclosure also provides a silicon polymer hydrogel composite anode electrode and its method of preparation. More particularly, the present disclosure provides a lithium-ion battery. A cycle life analysis of a liquid electrolyte system over 500 cycles at a rate of 0.1 Ag-1 was conducted, achieving a specific capacity of 534mAh g-1. Additionally, the specific capacity of a quasi-solid electrolyte system over 100 cycles at the same rate was investigated, which achieved a capacity of 717 mAh g-1.
Absstract of: WO2025258765A1
Disclosed are a battery pack case and a battery pack and vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; and an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate.
Absstract of: WO2025258768A1
Disclosed are a battery pack case, a battery pack, and a vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate; and a discharge flow path which is formed in the separation space and bent multiple times and has one end communicating with the through-hole and the other end communicating with the outside of the separation space.
Absstract of: WO2025257853A1
The present invention provides a cathode active material composite for lithium-ion secondary battery. The cathode active material composite of the present invention comprises a composite of Lithium manganese iron phosphate and Nickel Manganese Cobalt with specific crystal morphology. The present invention also provides a cathode comprising the active cathode material composite and a dry manufacturing process for preparation of the cathode. The cathode of present invention has high electrode density and demonstrates excellent electrochemical performance.
Absstract of: US2025385410A1
A secondary battery includes a case including an accommodation part and having a width direction (X-axis direction) and a height direction (Y-axis direction) defined, an electrode assembly accommodated in the accommodation part, a first current collecting plate on the electrode assembly, an injection member on the first current collecting plate, and a cap assembly on the case, wherein the electrode assembly includes a first electrode, a second electrode, and a separator therebetween, the electrode assembly includes a hollow part, the first current collecting plate includes a first hole overlapping the hollow part, the injection member includes an inlet and an outlet, the injection member includes a second hole overlapping the first hole, the injection member includes a protrusion part in the first hole, the protrusion part spaced apart from the first current collecting plate, and a width of the protrusion part changes while extending from the inlet to the outlet.
Absstract of: US2025385407A1
The secondary battery electrode includes a substrate including an uncoated portion including a first surface and a second surface, the second surface being opposite the first surface, and a coated portion on which a first active material layer and a second active material layer are coated, the second active material layer being on a surface of the substrate opposite the first active material layer. The secondary battery also includes an electrode tab coupled to the substrate, a first tape adhered to a portion of the first active material layer around the electrode tab and the uncoated portion, and a second tape opposite the first tape and adhered to a portion of the second active material layer around the uncoated portion. Further, a tensile strength of at least one of the first tape or the second tape is 230 N/mm2 or greater.
Absstract of: US2025385351A1
A protective cover for protecting a battery cell top surface of a battery cell, comprising a main protective wall with an extension in a longitudinal direction and a width direction, and a top surface facing upwardly in the height direction and a bottom surface facing downwardly in the height direction, and at least one battery cell attachment portion which is arranged to attach the protective cover to the battery cell such that the bottom surface faces the battery cell top surface. The at least one battery cell attachment portion configured to provide a snap-fit connection to the battery cell.
Absstract of: US2025385403A1
A battery cell, a battery, and an electric device are provided. The battery cell has a battery housing, where a pole assembly is disposed on a first wall of the battery housing, the pole assembly includes a pole body, and the pole body includes: a bearing portion, the bearing portion being inserted through a mounting hole of the first wall; and a bending portion, the bending portion being connected to one end of the bearing portion in a central axis direction, bent relative to the bearing portion, and disposed on one side of the first wall, and a bending resistance strength of the bending portion being less than a bending resistance strength of the bearing portion. The battery includes the battery cell described above. The electric device includes the battery described above.
Absstract of: US2025385352A1
A cylindrical battery includes a battery element, an outer can having a bottomed cylindrical shape with an opening on one side, a sealing body that seals the opening of the outer can, and a welded portion in which the outer can and the sealing body are welded. The outer can houses the battery element, and the welded portion extends in a first direction along a boundary between the outer can and the sealing body. A value obtained by dividing a maximum welding depth from an outermost surface of the welded portion in the first direction by a maximum thickness of a thickness of the outer can and a thickness of the sealing body is 0.4 or more and 1.5 or less.
Absstract of: WO2025256040A1
The present application applies to the technical field of batteries (100). Provided are a battery (100) and an electric device, which comprises the battery (100), the battery (100) comprising battery cells (10) and a fire extinguishing structure (30), wherein each battery cell (10) comprises a casing assembly (12), the casing assembly (12) being provided with a weakened structure (123); and the fire extinguishing structure (30) is arranged opposite the weakened structure (123). The casing assembly (12) comprises a first wall (1221) and a pressure-relief mechanism (123a) connected to the first wall (1221), wherein the weakened structure (123) includes the pressure-relief mechanism (123a); and/or the casing assembly (12) is provided with a weld seam (123b), wherein the weakened structure (123) includes the weld seam (123b). The fire extinguishing structure (30) being spaced apart from and opposite the weakened structure (123) enables the fire extinguishing structure (30) to reduce the temperature of a high-temperature and high-pressure gas generated during thermal runaway of the battery cells (10). In this way, thermal runaway of the entire battery (100) can be mitigated, thereby improving the reliability of the battery (100).
Absstract of: WO2025255978A1
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises an electrode assembly and a casing, wherein the electrode assembly is located in the casing, and the casing comprises a first side wall and a second side wall; and a first arc-shaped portion is connected between the first side wall and the second side wall, the first arc-shaped portion is arranged opposite an edge of the electrode assembly, and at least part of the first arc-shaped portion is provided with a first clearance groove for providing clearance for the corresponding edge of the electrode assembly.
Absstract of: WO2025255940A1
A battery (100), an electric device, and an energy storage device. The battery (100) comprises: a case (10), which is provided with a frame (101) defining an accommodating space, wherein at least one battery cell (110) is placed in the accommodating space; and a mounting member (104), which is located outside the accommodating space and connected to the frame (101). The mounting member (104) comprises a first mounting plate (11) and a second mounting plate (12) connected to each other, wherein the first mounting plate (11) is located below the second mounting plate (12) in the direction of gravity, and the first mounting plate (11) comprises a first plate section (111) connected to a lower part of the frame (101), a second plate section (112) connected to a side surface of the frame (101) and a third plate section (113) connected to the second mounting plate (12), the first plate section (111), the second plate section (112) and the third plate section (113) being connected in sequence. The battery has a relatively high mounting strength, structural rigidity and structural strength; and the electric device and the energy storage device have a relatively high use reliability.
Nº publicación: WO2025258783A1 18/12/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
\uC8FC\uC2DD\uD68C\uC0AC \uC5D8\uC9C0\uC5D0\uB108\uC9C0\uC194\uB8E8\uC158
Absstract of: WO2025258783A1
Disclosed are a battery pack case, a battery pack, and a vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate; and a venting valve which is provided on the outer plate to selectively discharge fluid in the separation space.
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