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1017
results.
Updated on
15/11/2026 [08:03:00]
Results 275 to 300 of 1017
Absstract of: US20260360869A1
A molding apparatus includes a die having first opening, a stripper, an upper punch, and a lower punch. The stripper is disposed above the die to fix the pouch film and has a second opening at a position corresponding to the first opening. The upper punch is configured to press the pouch film through the first opening, and the lower punch is configured to press the pouch film through the second opening between an outer circumference of the upper punch and an inner circumference of the second opening.
Absstract of: US20260360885A1
A battery includes a case, an electrode group housed therein and including a first electrode and a second electrode, and a sealing unit that seals the opening of the case. The case includes a crimped part that fixes the sealing unit, and is electrically connected to the first electrode. The sealing unit includes a current collector plate electrically connected to the second electrode, a conductive cap provided outward of the current collector plate in the axial direction of the case and joined to the current collector plate at a first joint, an insulative gasket provided between the crimped part and the current collector plate and the conductive cap, and an insulating member including a first insulating portion 56a located between the peripheral edge of the current collector plate and the peripheral edge of the conductive cap. The first insulating portion is provided outward of the first joint.
Absstract of: US20260360794A1
A code marking apparatus includes: a feeding mechanism, including at least two feeding clamps and at least two linear guide rails that extend in a first direction and are disposed in parallel in a second direction, where the feeding clamps are capable of linearly reciprocating between a first position and a second position along the respective linear guide rails, and the first direction is perpendicular to the second direction; a code marking mechanism, located between the first position and the second position in the first direction, where the at least two feeding clamps that are loaded with workpieces to be marked are capable of alternately passing through a code marking region of the code marking mechanism; a code scanning mechanism, located on a downstream side of the code marking mechanism in the first direction; and a pick-up mechanism.
Absstract of: US20260360696A1
A nonaqueous electrolyte secondary battery positive electrode is characterized by comprising a positive electrode current collector and a positive electrode mixture layer disposed on the positive electrode current collector, and is characterized in that: the positive electrode current collector has a positive electrode current collector exposed part in which the positive electrode mixture layer is not disposed; the positive electrode mixture layer has a body part and an end part that is provided closer to the positive electrode current collector exposed part than the body part is and is thinner than the body part; the body part contains a positive electrode active material having a unimodal particle size distribution; and the end part contains a positive electrode active material having a multimodal particle size distribution.
Absstract of: US20260354926A1
A lighting apparatus for use as a surgical headlamp is disclosed. A light emitting diode is positioned in a recess within a frustoconical, thermally-conductive heat sink that has a several circumferential ridges to provide a desired surface area for heat transfer. The diode and the heat sink are provided in a housing that also includes a fan for drawing ambient air into the housing to contact the heat sink and exhausting heated air. A lens is snap-fit into a slide that frictionally engages the interior of the housing, allowing a user to adjust the spacing between the light emitting diode and the lens as desired. Personal cooling apparatuses usable with the lighting apparatus are also described. Auxiliary undergown switches are also described as are personal cooling apparatuses.
Absstract of: US20260360831A1
A battery separator for a lead acid battery addresses the issues of acid stratification and separator oxidation arising from contaminants. The separator includes a microporous membrane and a diffusive mat affixed thereto. The diffusive mat has a three hour wick of: at least about 2.5 cm. The diffusive mat may be made of synthetic fibers, glass fibers, natural fibers, and combinations thereof. The diffusive mat may include silica. The separator may include a rubber.
Absstract of: US20260356797A1
A method for manufacturing a composition comprising a salt of bis(fluoro sulfonyl)imide (salt-FSI), the method comprising the steps of: providing a composition composition (COMP) comprising: at least a salt of bis(fluoro sulfonyl)imide salt-FSI in a first concentration, and at least one solvent solvent (S); charging said composition (COMP) into a first vessel; charging at least one organic solvent solvent (S1) into the first vessel; subjecting said composition (COMP) and the solvent (S1) to a first distillation; recovering a composition composition (COMP-F) in the form of a solution comprising: the at least one salt-FSI in a second concentration wherein the second concentration is higher than the first concentration in the composition (COMP), water in an amount lower than the amount of water in composition (COMP), and at least one solvent comprising said solvent (S1) in an amount of at least 95 wt. % based on the total weight of the composition (COMP-F).
Absstract of: US20260360628A1
A manufacturing method for an electrode foil, includes: performing a surface expansion treatment on a foil made from a valve metal; forming an oxide film layer on the foil subjected to the surface expansion treatment; cutting the foil on which the oxide film layer is formed; and forming, on a cut surface of the foil, a resin layer having a withstand voltage equal to or greater than a withstand voltage of the oxide film layer.
Absstract of: US20260357378A1
Described is a method of direct lithium extraction from a lithium-containing feedstock, the method comprising extraction, release and precipitation steps. In the release step, in which a release solution comprising a protic acid is contacted with the lithium-ion-exchange material, whereby lithium ions are released from the lithium-ion-exchange material into the release solution, the protic acid is an organic acid. In the precipitation step, in which a precipitant is mixed with the lithium-enriched release solution, the precipitant is a non-lithium containing alkali.
Absstract of: US20260360842A1
Provided are a battery pack and a vehicle. The battery pack includes a casing, a battery group, and an electrical module. The casing has a front side wall and a rear side wall. A side access opening is formed at the rear side wall. The battery group is located in the casing. The electrical module is mounted in the casing. The electrical module includes an electrical connection structure, a first electrical portion, and a second electrical portion. The first electrical portion is located at a rear side of the battery group and directly faces the side access opening. The second electrical portion is located at a front side of the battery group. The electrical connection structure is configured to be electrically connected to the first electrical portion, the second electrical portion, and the battery group.
Absstract of: US20260360846A1
A pressure control system for controlling pressure applied to a battery module has a plurality of battery cells each having a solid electrolyte and a negative electrode containing lithium. The pressure control system includes: a movable end plate configured to apply pressure to the battery module by pressing the battery module along a stacking direction of the battery cells; and a controller configured to adjust a value of the pressure by controlling the movable end plate; wherein in a case in which a battery control system that controls the charging/discharging of the battery module is shut down, the controller reduces the pressure to a predetermined pressure, after which the battery control system is shut down.
Absstract of: US20260360851A1
The present invention relates to a thermal management and safety method for a battery in a device, the device comprising a battery and a cooling circuit, the battery comprising a plurality of modules, each module comprising a plurality of cells and the cooling circuit comprising a loop for circulating a coolant and control valves for controlling the flow of the coolant upstream of each module, the method comprising the following steps: a) a step of detecting a fault in at least one cell of a module, b) when a fault is detected, a step of modulating the flow, which step comprises increasing the flow of the coolant in the module or the modules comprising at least one faulty cell.
Absstract of: US20260360599A1
A superconducting magnet device includes a first superconducting coil, a second superconducting coil, a first power source that supplies a current to the first superconducting coil and does not supply a current to the second superconducting coil, a second power source that does not supply a current to the first superconducting coil but supplies a current to the second superconducting coil, a first detector that detects quenching of the first superconducting coil, and a control unit that performs first adjustment processing of adjusting a current to be supplied from the second power source to the second superconducting coil in response to detection of quenching of the first superconducting coil by the first detector.
Absstract of: US20260358422A1
Embodiments of the present disclosure provide a short circuit early-warning method and apparatus for an energy storage battery. The method includes: clustering analysis is performed on a U-Absolute Change (UAC) of a battery cell, and a U-Baseline Change (UBC) of the battery cell is calculated according to the UAC of each clustering center; a training set is constructed according to the UBC, and the training set is partitioned into a plurality of training subsets using a locality-sensitive hashing table; an early-warning neural network model is respectively trained according to the plurality of training subsets, and an early-warning threshold of each training subset is respectively calculated; and short circuit early-warning is performed on a battery cell according to the early-warning neural network model and the early-warning threshold and in conjunction with battery cell state data at the current moment.
Absstract of: EP4838586A1
0001 A secondary battery includes: a positive electrode plate including a positive electrode current collector (100) with a main body region (102) and an edge region (101), an active material layer (200) arranged on one surface of the main body region, a first insulating layer (300) arranged on one surface of the edge region, and a second insulating layer (400) arranged on one surface of the first insulating layer. In a predetermined direction, a dimension of the first insulating layer is greater than a dimension of the second insulating layer. Provision of multiple layers, first and second insulating layers, having different sizes can effectively improve the safety performance of the battery cell assembly in the secondary battery, as well as the insulation and flexibility of the positive electrode plate in the battery cell assembly.
Absstract of: EP4838637A1
The present disclosure relates to the field of energy storage technologies, and provide a secondary battery, a method for manufacturing secondary batteries, an energy storage system, and a power utilization apparatus. The secondary battery includes a housing and a bare cell. The housing includes a first housing and a second housing configured to connect to the first housing. The first housing forms an accommodating cavity and has an opening communicated with the accommodating cavity, and the second housing is configured to seal the opening. The first housing includes a bottom wall and side walls connected to the bottom wall and connected to one another to form the accommodating cavity. A surface of the bottom wall facing the accommodating cavity has a surface area larger than a surface area of a surface of one respective side wall of the side walls facing the accommodating cavity. The second housing is provided with a negative post that is insulated from the second housing. The bare cell is arranged in the accommodating cavity and includes a positive pole piece, a negative pole piece, and a diaphragm configured to insulate the positive pole piece from the negative pole piece. The positive pole piece is provided with a positive tab, and the negative pole piece is provided with a negative tab. The secondary battery, the method for manufacturing secondary batteries, the energy storage system, and the power utilization apparatus provided in the present disclosure are conducive to
Absstract of: EP4838691A1
A battery cell of the present disclosure may include an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis; a can configured to accommodate the electrode assembly through an open end formed on one side; a lid covering the open end and having an injection port at the center; and a sealing member configured to seal the injection port, wherein the sealing member may have a sealing portion pressed into the injection port and in close contact with an inner circumferential surface of the injection port; and a welded portion mutually welded to the inner circumferential surface of the injection port.
Absstract of: EP4837881A1
0001 A lithium iron phosphate preparation method, a positive electrode active material, a positive electrode plate, a battery, and an electrical device. The lithium iron phosphate preparation method comprises: adding a first iron phosphate, a second iron phosphate, and a lithium source into a solvent, so as to obtain a slurry; and sintering the slurry, so as to obtain lithium iron phosphate. The specific surface area S1 of the first iron phosphate satisfies 7 m<2>/g ≤ S1 ≤ 9.5 m<2>/g, and the grain size D1 of the first iron phosphate satisfies 50nm ≤ D1 ≤ 65 nm; the specific surface area S2 of the second iron phosphate satisfies 8.5 m<2>/g ≤ S2 ≤ 11.5 m<2>/g, and the grain size D2 of the second iron phosphate satisfies 30 nm < D2 ≤ 50 nm; the specific surface area of the second iron phosphate is greater than the specific surface area of the first iron phosphate, and the grain size of the second iron phosphate is less than the grain size of the first iron phosphate. The technical solution of the present application can achieve lithium iron phosphate having high compaction density and high capacity.
Absstract of: EP4838644A2
0001 A top-cover assembly (100), a battery (200), and an electricity-consumption device (300) are provided. The top-cover assembly (100) includes a lower plastic member (30), a first terminal-post (41), and a first connecting sheet (50) extending linearly in a width direction of the top-cover assembly (100). The lower plastic member (30) includes a lower-plastic-member body (31). The lower-plastic-member body (31) defines a first through-hole (313) extending through the lower-plastic-member body (31) and allowing for the first terminal-post (41) to pass through. The first connecting sheet (50) is connected to the first terminal-post (41). The first connecting sheet (50) is configured to be welded to a first tab of an electrode assembly (220), to enable the first terminal-post (41) to be electrically connected to the electrode assembly (220) through the first connecting sheet (50). The first connecting sheet (50) is stacked with the lower-plastic-member body (31). A centerline (O1) of the first connecting sheet (50) in a length direction of the top-cover assembly (100) is offset from a centerline (O2) of the first terminal-post (41).
Absstract of: EP4838664A1
A battery cell, a battery and an electric device. The battery cell comprises: a casing component, which comprises a casing body, wherein an open end and a first casing wall are respectively formed at two opposite ends of the casing body, the first casing wall being provided with a mounting hole; a second casing wall is formed on at least one side of the casing body adjacent to the first casing wall; a guide portion is provided between the second casing wall and the first casing wall, the guide part comprising a guide face located in the casing body, and in the direction from the open end to the first casing wall, the distance between the guide face and an inner wall surface of the second casing wall gradually increasing; a terminal post component, which is mounted on the first casing wall and covers the mounting hole, wherein the terminal post component comprises a terminal post body arranged opposite the mounting hole; and a battery cell component, which is accommodated in an accommodating cavity of the casing body and is connected to the terminal post body.
Absstract of: EP4838197A1
The present invention relates to a fatigue acceleration tester for evaluating durability of a battery module against fatigue failure through repeated expansion and contraction of the battery module, and more specifically, relates to a fatigue acceleration tester capable of implementing reliable fatigue acceleration by simulating repeated actual expansion and contraction, and a method thereof.According to one example of the present invention, it is possible to simulate an actual swelling phenomenon by pressurizing widthwise sidewalls of a case from the inside to the outside through a plurality of actuators provided along the longitudinal direction of the case. Particularly, it is possible to change the number and height of the actuators, and by independently setting the pressurization length of the individual actuator, it is possible to enhance general versatility.
Absstract of: EP4838598A1
0001 A battery (10) comprises: a flat electrode body (13) in which a positive electrode and a negative electrode are wound with a separator therebetween; and a flat outer can (14) which accommodates the electrode body (13), the flat outer can having a bottomed cylindrical-shape. A first protruding part (31) protrudes in the minor-axis direction of the electrode body (13) and extends in the winding axis direction of the electrode body (13). The first protruding part is provided at both ends, in the major-axis direction of the electrode body (13), of at least one inner surface (14b) of a pair of main surface parts (14a) that are part of the outer can (14) and that face each other in the minor-axis direction of the electrode body (13).
Absstract of: EP4838672A1
0001 A battery cell, a battery and an electric device. The battery cell comprises a casing component, a terminal post component and an electrode component, wherein the casing component comprises a mounting wall; the terminal post component is mounted on the mounting wall, and comprises a terminal post body; the electrode component comprises an active material coating portion, an electrically conductive portion and an insulating member; the electrically conductive portion is connected between the active material coating portion and the terminal post body; at least part of the insulating member is arranged between the end of the active material coating portion connected to the electrically conductive portion and the terminal post body; the insulating member is provided with an avoidance hole allowing the electrically conductive portion to pass therethrough; the electrically conductive portion is bent to form an open slot; and the insulating member extends into the open slot and abuts against at least part of a slot wall of the electrically conductive portion that forms the open slot. In the technical solutions of the embodiments of the present application, the bent part of the electrically conductive portion can be pressed and supported by using the insulating member, so that the bending shape of the electrically conductive portion is controllable; moreover, the risk of the battery cell short-circuiting can be reduced, thereby being conducive to improving the operational rel
Absstract of: EP4838565A1
The present application is applicable to the technical field of batteries, and provides a battery cell (20), a battery (100), and an electrical apparatus. The battery cell (20) includes a positive electrode sheet (321), a negative electrode sheet (232), and a separator (233). The positive electrode sheet (321), the negative electrode sheet (232), and the separator (233) are stacked in a preset order and wound to form a wound body, and the positive electrode sheet (321), the negative electrode sheet (232), and the separator (233) respectively include a plurality of flat portions (234) and a plurality of curved portions (235) alternately connected. At least one surface of at least one of the curved portions (235) is coated with a discontinuously distributed coating (236). The battery cell (20), the battery (100), and the electrical apparatus provided by the present application can reduce the risk of phenomena such as electrode sheet breakage and lithium precipitation at a comer to some extent.
Nº publicación: EP4838612A1 11/11/2026
Applicant:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LIMITED [CN]
Contemporary Amperex Technology Co., Limited
Contemporary Amperex Runzhi Software Technology Limited
Absstract of: EP4838612A1
0001 The present application discloses a battery stacking method, an apparatus, and a system. A stack stacking device comprises a bearing plate and a limiting assembly capable of moving on the bearing plate, a plurality of cathode sheets are spaced on an anode material strip, the anode material strip is folded at folding positions corresponding to spacings between adjacent cathode sheets to obtain a plurality of electrode sheet units, and each electrode sheet unit is stacked on a bearing plate of a stacking mechanism. The method comprises: acquiring a target offset distance of a first electrode sheet unit of the anode material strip relative to a first reference position; obtaining a target stacking position of the first electrode sheet unit on the basis of the target offset distance and a second reference position, wherein the second reference position is a reference position set when the electrode sheet units of the anode material strip are stacked on the bearing plate; and if the first electrode sheet unit is the first stacked electrode sheet unit, when the first electrode sheet unit is stacked on the bearing plate, controlling the limiting assembly to push the first electrode sheet unit to move to the target stacking position.
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