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1369
results.
Updated on
24/10/2026 [08:31:00]
Results 225 to 250 of 1369
Absstract of: US20260331490A1
A secondary battery includes a positive electrode plate, where the positive electrode plate includes a positive electrode active material, the positive electrode active material includes secondary particles, and the secondary particle is an agglomerated particle including a plurality of primary particles; and the primary particles include a positive electrode active substance; the secondary particles include oriented secondary particles; and in the oriented secondary particle, based on a total quantity of primary particles in the oriented secondary particle, a quantity proportion of primary particles whose a-axes form angles α1 with the longitudinal directions in the oriented secondary particle is denoted as F1, where 15°≤α1≤45°, and F1≥60%.
Absstract of: US20260331694A1
A battery cell includes a housing, an electrode assembly, a vent valve assembly, and a protective member. The housing is provided with an accommodating cavity; where the housing includes a first wall; the first wall has a first surface and a second surface opposite to each other, the second surface faces outside the battery cell; the first wall is provided with a first vent hole; and the first vent hole extends through the first surface and the second surface. The electrode assembly is accommodated in the accommodating cavity. The vent valve assembly is connected to the first wall and covers the first vent hole. The protective member is detachably connected to the second surface and covers the vent valve assembly.
Absstract of: US20260331723A1
0000 Disclosed are a secondary battery and a battery module, and more particularly a terminal plateless secondary battery and a battery module having an integrated terminal plate and busbar. The secondary battery includes an electrode assembly, a current collection unit electrically coupled to the electrode assembly, a case configured to receive the electrode assembly and the current collection unit, and a terminal unit electrically coupled to the current collection unit, wherein the terminal unit includes an inner terminal portion extending through the case in an inward direction of the case and an outer terminal portion extending in an outward direction of the case, the length of the outer terminal portion being greater than the length of the inner terminal portion.
Absstract of: US20260331717A1
The present disclosure relates to a secondary battery including a coupling structure of a current collector and a cap assembly and is directed to providing a secondary battery capable of improving a structure of the current collector to remove a separate member connecting a terminal and enable a simple connecting process, thereby saving material costs and improving productivity. To this end, the present disclosure provides a secondary battery including a case having an opening formed at a least one end thereof, an electrode assembly accommodated in the case, a current collector electrically connected to the electrode assembly, a terminal electrically connected to the current collector, and a cap assembly installed in the opening of the case, wherein the current collector includes a conductive boss formed to face the terminal of the cap assembly.
Absstract of: US20260331463A1
0000 Provided is an electrode for secondary battery. The electrode may include a substrate, a first coated portion disposed on a first surface of the substrate, the first coated portion comprising an active material; and a first uncoated portion disposed on the first surface of the substrate, the first uncoated portion being in contact with the first coated portion and exposing the substrate, wherein a first side portion of the first coated portion in contact with the first uncoated portion has a stepped surface.
Absstract of: US20260331573A1
A solid electrolyte is composed primarily of a component expressed by a composition formula of Naa+dMbXcAeOf by using values a to f that are greater than 0, where M is an element serving as a trivalent cation, X is a halogen element, and A is a sulfur element or a phosphorus element, in which 0.8c≤(a+3b)≤1.2c and 1.6f≤(d+n×e)≤2.4f are satisfied, where n is 4 or 6 when A is a sulfur element and n is 5 when A is a phosphorus element.
Absstract of: US20260331668A1
A pack case includes a lower housing forming an accommodation space, a lower reinforcement plate mounted in the accommodation space of the lower housing and configured to support at least one cell assembly, and an upper housing coupled to the lower housing to seal the accommodation space, wherein a mechanical strength of the lower housing is smaller than a mechanical strength of the lower reinforcement plate.
Absstract of: US20260328628A1
The present invention discloses a system for monitoring battery surface temperature based on a dual-spiral optical fiber sensor, including a dual-spiral distributed (DSD) optical fiber being arranged flat on the surface of a battery and including a first spiral structure and a second spiral structure that are opposite in winding directions; the battery is divided into a left part with center A and a right part with center B based on a center point O of the battery, respectively; with point A as spiral starting point, a starting end of DSD optical fiber spirals outward along first direction for a set number of turns, to form first spiral structure; tail end of first spiral structure transitions through point O, spirals inward along second direction for a set number of turns, and then reaches point B as terminal end of the DSD optical fiber, to form the second spiral structure.
Absstract of: US20260331608A1
Back-contact solar cell includes first polarity doped layers and second polarity doped layers, stacked on back surface of a silicon substrate, arranged at intervals in a first direction, and extending in a second direction; first fine gates on the first polarity doped layers and second fine gates on the second polarity doped layers; and in the second direction, third polarity doped layers disposed below the first fine gates, and located between back-surface passivation film (BSPF) layers and the first polarity doped layers. At positions corresponding to the third polarity doped layers, the first fine gates are in contact with the third polarity doped layers through the BSPF layers. Between adjacent third polarity doped layers, the first fine gates are in contact with the first polarity doped layers through the BSPF layers. The second fine gates at least partially penetrate through the BSPF layers to contact the second polarity doped layers.
Absstract of: US20260331691A1
0000 A battery cell, a battery and an electric device. The battery cell includes a casing, a breathable membrane assembly, and a one-way valve. The housing has a wall portion, where the wall portion is provided with a first vent hole and a second vent hole arranged at intervals, and the first vent hole and the second vent hole each communicate the inside of the housing with the outside of the housing. The breathable membrane assembly is disposed on the wall portion and covers the second vent hole. The one-way valve is disposed on the wall portion and covers the first vent hole.
Absstract of: US20260331583A1
0000 An electrochemical apparatus includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a negative electrode current collector and a negative electrode active material layer located on at least a part of a surface of the negative electrode current collector. An areal density of the negative electrode active material layer is cw mg/mm<2>, where 8.44≤cw≤10.38. Based on a mass of the electrolyte, the electrolyte includes: ethylene carbonate with a mass percentage of A %, propylene carbonate with a mass percentage of B %, diethyl carbonate with a mass percentage of C %, ethyl propionate with a mass percentage of D %, and propyl propionate with a mass percentage of E %; where 1≤A/B≤3, and 2≤(E+D)/C≤8.
Absstract of: US20260330621A1
0000 A detection method and apparatus for battery housing, a device, a medium, and a product. The method includes: obtaining a first image of a first corner of a battery housing, where the first corner is a rounded corner; extracting a target edge contour of a curved portion of the first corner in the first image; performing curve fitting based on a feature point of the target edge contour to obtain a target curve; and determining whether burrs are present on the first corner based on the target curve.
Absstract of: US20260331555A1
0000 An electrode assembly includes a wound structure and a protective layer, where the wound structure is formed by winding a stacked body including a positive electrode sheet and a negative electrode sheet along a winding direction, a separator being sandwiched between the positive electrode sheet and the negative electrode sheet, and the positive electrode sheet and the negative electrode sheet each including a plurality of bent portions; and an inner side and an outer side of at least one of the bent portions are each attached with the protective layer, where the protective layers on the inner and outer sides of a same bent portion are staggered at least at one end portion along the winding direction.
Absstract of: US20260331494A1
0000 The compaction index of the lithium iron phosphate cathode material is determined with a specific method, the compaction index is controlled to fall within a specific range, and the average circularity of larger particles within a range of Dv50-Dv100 is maintained within an appropriate range. Such lithium iron phosphate cathode material exhibits superior particle mobility, enabling rapid particle movement and rearrangement during compaction, facilitating formation of a cathode sheet with high compacted density, and improving the charge and discharge capacity of a battery. Furthermore, particle fracture during compaction can be avoided, imparting high fracture resistance to the material. The lithium-ion battery including the lithium iron phosphate cathode material provided in the present disclosure has both high energy density and high capacity retention.
Absstract of: US20260331622A1
0000 A thermal management system for a vehicle includes a radiator and a chiller. The thermal management system may include multiple configurations to provide cooling to components of the vehicle. In a first configuration, the components may be cooled via a radiator. In a second configuration, some of the components may be cooled via the radiator while other components may be cooled via a chiller. In a third configuration, the components may be cooled via the chiller. The configuration of the thermal management system may be based on the temperature of the components.
Absstract of: US20260331627A1
0000 An integrated battery heating system configured to provide heat and measure the temperature of a battery cell structure. The system includes a heating element and a temperature measurement device disposed onto a layer of the battery cell structure and configured to directly heat and measure the temperature of the battery cell structure. The heating element and temperature measurement device are electrically connected to contact terminals configured to receive energy and power the heating element and temperature measurement device.
Absstract of: US20260331607A1
0000 The present invention is directed to a portable battery pack connection scheme which provides a synchronized direct current (“DC”) environment for every battery unit in the pack. The connections within the present invention are be made via respective conductive paths each including a high-power DC precision cable segment and having a low resistance suitable to allow a high charge or discharge rate. In some embodiments of the present invention, there may be multiple rows of parallel-connected batteries arranged in a series to provide higher output voltage.
Absstract of: US20260326579A1
Electrolyte materials having the formulas Li2CaCl4 or Li3Ca2Cl7 are provided, wherein the electrolyte material crystallizes in a space group selected from the group consisting of Cm, Imma, Cmmm, and P1. A solid-state battery comprising Li2CaCl4 or Li3Ca2Cl7 electrolyte materials is provided. Methods for making Li2CaCl4 and Li3Ca2Cl7 electrolyte materials are also provided.
Absstract of: US20260331634A1
Battery enclosure systems and methods for cooling batteries are provided. A method for cooling a battery includes locating a metal cold plate in a mold, wherein the metal cold plate includes an internal channel; filling the mold with resin and cooling to form an overmolded battery tray including an outer part surrounding the metal cold plate; wherein the overmolded battery tray has a bottom surface formed by the outer part and an upper surface formed by the metal cold plate; connecting the internal channel with a coolant supply; locating the battery on the metal cold plate; and attaching a cover to the overmolded battery tray to enclose an internal volume, wherein the battery is in the internal volume.
Absstract of: US20260331738A1
Systems and methods disclosed herein include an immersion cooling system configured to cool a battery. The immersion cooling system comprises a housing including a flow space configured to be filled with an insulating cooling fluid and to accommodate a cell module, and a through-hole. A high voltage terminal block device is configured to be installed into the through-hole and includes a conductive fastening part configured to be in electrical contact with a cell tab of the cell module. An outer conductive part is configured to attach to the conductive fastening part and to protrude to an outside of the housing when the high voltage terminal block device is installed into the through-hole and to electrically connect to an external power terminal. An insulating injection-molded part is configured to surround outer circumferences of the conductive fastening part and the outer conductive part.
Absstract of: US20260331710A1
0000 The present invention is directed to a battery pack connection scheme which provides a synchronized direct current (“DC”) environment for every battery unit in the pack. The connections within the present invention are be made via respective conductive paths each including a high-power DC precision cable segment and having a low resistance suitable to allow a high charge or discharge rate. In some embodiments of the present invention, there may be multiple rows of parallel-connected batteries arranged in a series to provide higher output voltage.
Absstract of: US20260331568A1
0000 Electrolyte materials having the formulas Li<3>Ca<3>Cl<7>O, Li<5>Ca<2>Cl<7>O, and Li<5>CaCl<5>O are provided, wherein the electrolyte material crystallizes in a space group selected from the group consisting of Cm, P2_1, Pc, Pm, P3m1, P1, and Pmn2_1. A solid-state battery comprising Li<3>Ca<3>Cl<7>O, Li<5>Ca<2>Cl<7>O, or Li<5>CaCl<5>O electrolyte materials is provided. Methods for making Li<3>Ca<3>Cl<7>O, Li<5>Ca<2>Cl<7>O, and Li<5>CaCl<5>O electrolyte material are also provided.
Absstract of: US20260331630A1
0000 Systems and methods of thermal management and dimensional control of a battery system include forming ribbons to remove heat from a battery system. Battery cells are assembled in rows with each row disposed between two of the ribbons. Prior to assembling the battery cells in rows, subassemblies are formed, each of which includes one of the ribbons and one of the rows of battery cells in a pre-bonded cell row. The battery cells of each subassembly are fixed to the one of the ribbons by a first thermal interface material. Plural of the subassemblies are stacked after the battery cells of each subassembly are fixed to their respective one of the ribbons as one of the pre-bonded cell rows. The battery cells of each subassembly are secured to the ribbon of another subassembly by a second thermal interface material to form a battery module.
Absstract of: US20260331629A1
0000 A battery module uses a battery heat-dissipation device having a heat transfer member with a pulsating heat pipe into which an operating fluid is injected. The heat pipe has an I-shaped cross section including a vertical section of an evaporator member for vaporizing the operating fluid, a lower horizontal section of a first condenser member for liquefaction, and an upper horizontal section of a second condenser member. The pulsating heat pipe forms a dual refrigerant contact area with first and second coolant channels through first and second horizontal channel sections respectively positioned in the upper and lower horizontal sections. An area of a condenser portion is increased to increase a temperature difference between an evaporator portion in which a battery cell and a pulsating heat pipe are in direct contact with each other, thereby improving cooling performance.
Nº publicación: US20260331724A1 22/10/2026
Applicant:
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Absstract of: US20260331724A1
The secondary battery includes an electrode stack in which a plurality of electrodes, each including an electrode active material layer coated on at least one surface of a sheet-like current collector, is stacked in a first direction with a separator interposed between the electrodes. Each of the electrodes includes an uncoated portion that includes an edge of the current collector and where the electrode active material layer is not coated. The uncoated portion includes a proximal region and a distal region. The proximal region extends in a second direction intersecting the first direction from a coated portion where the electrode active material layer is coated on the current collector. The distal region includes the edge and is bent relative to the proximal region. The distal regions of the uncoated portions respectively included in the electrodes are joined to a terminal plate such that the distal regions overlap each other.
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