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1345
results.
Updated on
16/07/2025 [07:30:00]
Results 675 to 700 of 1345
Absstract of: WO2025139043A1
An electrical device, the electrical device comprising a battery pack, the battery pack comprising a battery or a battery module, the battery module comprising the battery, the battery comprising a battery cell, and the battery cell comprising a casing, an electrode core, and a separation member. The electrode core is arranged within the casing; two ends of the electrode core in the length direction are a first end and a second end, where the first end is provided with a positive electrode tab and a negative electrode tab. The separation member is arranged within the casing, the separation member is located between the casing and the second end of the electrode core, and the separation member separates the electrode core from the casing.
Absstract of: WO2025139028A1
A battery tray assembly (3), a battery pack (81) and an electric device (80). The battery tray assembly (3) comprises a battery tray (2) and a reinforcing member (1), wherein a cavity (20) is provided at at least one end of the battery tray (2) in a first direction, the cavity (20) is located inside the battery tray (2), and the reinforcing member (1) is arranged in the cavity (20). In the first direction, a first gap (41) is provided between the side of the cavity (20) away from the center of the battery tray (2) and the reinforcing member (1) located in the cavity (20).
Absstract of: WO2025139027A1
A filler (200), a battery pack (10), and an electrical device (20). The filler (200) is adapted to be arranged in a filling space (101) between a battery cell group (300) and a side wall of a tray (100); the filler (200) is provided with a first channel (211), an inlet (2113) of the first channel (211) being used for leading to a battery cell accommodating space (111) in the tray (100), and an outlet (2114) of the first channel (211) being used for leading to the outside of the battery cell accommodating space (111).
Absstract of: US2025219136A1
Provided are a gel polymer electrolyte separator, and a preparation method and use thereof. The gel polymer electrolyte separator is prepared from raw materials including a masterbatch and an extractant, where the masterbatch includes the following components in mass percentage, based on a mass of the gel polymer electrolyte: 53% to 81% of an organic solvent, 10% to 21% of a polymer substrate, 6% to 19% of a pore-forming agent, and 1% to 8% of a nano-functional material; the polymer substrate is one or two selected from the group consisting of a polyvinylidene fluoride (PVDF) homopolymer and a PVDF-hexafluoropropylene (HFP) copolymer; and the nano-functional material is one or more selected from the group consisting of Al2O3, SiO2, TiO2, LLZO, LLZTO, LLTO, NASICON, LAGP, and LATP.
Absstract of: US2025219133A1
Described herein are processes for producing solid electrolyte materials. The processes include mixing one or more solid electrolyte precursors to form a composite, where the resulting composite includes a fatty acid.
Absstract of: US2025219131A1
The present invention relates to an all-solid-state battery comprising: a negative electrode, an electrolyte layer, and a positive electrode including positive electrode layer and a current collector supporting the positive electrode layer, wherein the positive electrode layer includes a first area adjacent to the electrolyte layer and a second area adjacent to the positive electrode current collector, the first area includes first solid-state electrolyte particles, the second area includes second solid-state electrolyte particles, and the first solid-state electrolyte particles are needle-like solid-state electrolyte particles.
Absstract of: US2025219127A1
A lithium ion secondary battery includes a negative electrode portion, a porous layer formed on at least one surface of the negative electrode portion, and a positive electrode portion. The porous layer includes a polymer binder and inorganic fine particles dispersed on the polymer binder. The positive electrode portion is bonded onto the porous layer through an adhesive portion arranged continuously or discontinuously. The adhesive portion includes a thermoplastic polymer having a viscosity ranging from 2000 cPs to 95000 cPs at 25° C., and a ratio of an area occupied by the adhesive portion ranges from 0.02% to 10% based on an area of one surface of the positive electrode portion. A lithium ion secondary battery including an electrode assembly which has excellent adhesion durability without impairing ionic conductivity between electrodes is also provided.
Absstract of: US2025219137A1
A gel polymer electrolyte for a lithium battery, including a gel polymer and a liquid electrolyte, and a lithium battery including the same, wherein the liquid electrolyte includes a lithium salt and an organic solvent, and the gel polymer is a crosslinked product of i) a multifunctional acrylic first polymerizable monomer including three of more polymerizable functional groups, and ii) a second polymerizable monomer selected from among urethane-acrylic monomers including two more functional groups.
Absstract of: US2025219135A1
The present disclosure provides an electrolyte composition. The present disclosure also provides a composite composition comprising the electrolyte composition and an Argyrodite phase. Furthermore, the present disclosure is directed to a method of making and using the electrolyte composition.
Absstract of: WO2025143349A1
The present invention relates to a universal battery management method and system. The universal battery management method comprises the steps of: sensing the voltages of battery cells and the number of serial/parallel connections; measuring the voltages of the battery cells according to charging capacity; calculating the slope of the voltage of the battery cells according to the charging capacity; and specifying the type of each of the battery cells.
Absstract of: WO2025143390A1
An all-solid-state battery includes: a solid electrolyte layer, a positive electrode layer and a negative electrode layer facing each other with the solid electrolyte layer therebetween, a first external electrode connected to the positive electrode layer, a second external electrode connected to the negative electrode layer, and a positive electrode margin unit disposed between the positive electrode layer and the second external electrode. The positive electrode margin unit includes a main layer and an auxiliary layer having a shrinkage rate lower than that of the main layer.
Absstract of: WO2025143371A1
An all-solid secondary battery according to an embodiment comprises: an all-solid cell comprising a positive electrode, a negative electrode, and a solid electrolyte layer; an all-solid case in which the all-solid cell is accommodated; a pair of fluid-accommodating members in which fluid for pressurizing the all-solid cell is accommodated and which are in contact with the inner surface of the all-solid case; inflow and outflow valves allowing the fluid in the fluid-accommodating members to flow in and out; and a fluid supply unit connected to the inflow and outflow valves and supplying the fluid to the fluid-accommodating members.
Absstract of: WO2025143136A1
Provided is a polymer composition for an electrochemical element, the polymer composition comprising: a polymer including an aliphatic hydrocarbon unit and a nitrile group-containing unit; and an amide-based liquid medium, wherein the polymer has a tan δ (loss tangent) of greater than 1 at 0.01-10% strain in dynamic viscoelasticity measurement at a temperature of 100°C and a frequency of 10 Hz.
Absstract of: WO2025143111A1
A disclosed cylindrical lithium primary battery (100) includes: an electrode group (10) in which a positive electrode (1), a negative electrode (2), and a separator (3) are wound; a short-circuit metal sheet (21) disposed on the negative electrode (1); and a battery case that accommodates the electrode group (10) and functions as a negative electrode terminal. The positive electrode (1) includes: a positive electrode current collector having a plurality of through holes; and a positive electrode mixture layer disposed on the positive electrode current collector. The positive electrode has a current collector exposed part (1c) where a part of the positive electrode current collector is exposed. The negative electrode (2) includes a lithium-containing metal sheet. The short-circuit metal sheet (21) contains at least one metal element M selected from the group consisting of copper, iron, nickel, and zinc. At least a part of the short-circuit metal sheet (21) and at least a part of the current collector exposed part (1c) face each other across the separator (3). The short-circuit metal sheet (21) is electrically connected to the battery case not through the lithium-containing metal sheet.
Absstract of: WO2025139800A1
Provided in the present application are an electrode assembly, an electrochemical apparatus and an electric device. The electrode assembly comprises a first electrode sheet and a second electrode sheet having opposite polarities, wherein a first active material layer and a second active material layer of the first electrode sheet are respectively arranged on a first surface and a second surface of a first current collector that are opposite each other; the first active material layer is provided with a first groove and a second groove penetrating through a bottom wall of the first groove to the first surface; a first surface of a first single-sided bare foil area of the first current collector is exposed in the second groove, and a second surface thereof is covered by the second active material layer, such that the volume of the second active material layer is larger; a first tab is accommodated in the second groove and is welded to the first single-sided bare foil area to form a welded joint; and a first insulating adhesive layer is accommodated in the first groove and covers the welded joint, and the projection of the first insulating adhesive layer in the direction of thickness of the first current collector is located in the first groove, such that the overall thickness of the electrode assembly is smaller, making the energy density of the electrochemical apparatus higher.
Absstract of: WO2025139784A1
The present application relates to the technical field of batteries, and discloses a battery cell cover plate and a battery. The battery cell cover plate comprises: a cover plate body through which a mounting hole is formed; a pole provided with a limiting portion directly or indirectly abutted and fixed to one side surface of the cover plate body, a body step portion connected to the limiting portion and at least partially passing through the mounting hole, and a middle-diameter step portion and a top-diameter step portion sequentially provided on the side of the body step portion distant from the limiting portion; and a riveting block riveted to the middle-diameter step portion and the top-diameter step portion, so that the riveting block is directly or indirectly abutted against the other side surface of the cover plate body, wherein along the radial direction of the pole, the diameter of the middle-diameter step portion is d2, the diameter of the top-diameter step portion is d3, and 0.05≤(d3-d2)/d3≤0.5. The battery cover plate provided in the present application avoids the situation where the tensile resistance performance deteriorates due to the excessively small load-bearing surface on the top of the pole, effectively ensures the structural strength of the cover plate, and improves the safe use performance of the battery.
Absstract of: WO2025139886A1
The present disclose relates to the technical field of sodium ion batteries, and in particular to a sodium-ion battery and an electrical device. The sodium-ion battery comprises a positive electrode sheet and an electrolyte; the positive electrode sheet comprises an active material layer, and the active material layer mainly consists of a positive electrode active material, a conductive agent, and a binder; the mass of the conductive agent accounts for A% of the total mass of the active material layer, and the mass of the binder accounts for B% of the total mass of the active material layer; the electrolyte comprises solvents and a sodium salt; the relative dielectric constant of the solvents is ε, n types of solvents are comprised, n≥2, and the ratio of the mass of each type of solvent to the total mass of the solvents is M; the molar concentration of the sodium salt in the electrolyte is N; A, B, ε, M, and N satisfy: 4.3≤A/B+C≤12.9, and formula (I). The sodium-ion battery provided in the present disclosure has high safety and good cycle stability.
Absstract of: WO2025139033A1
The present disclosure relates to the technical field of lithium ion batteries. Provided are a jelly-roll cell and an electrochemical device. The jelly-roll cell is formed by rolling a positive electrode sheet, a separator and a negative electrode sheet, which are sequentially stacked, wherein a polymer layer is provided on at least one surface of a carrier layer of the separator, and first coating regions and second coating regions are alternately spaced apart on the polymer layer in the direction of the length of the separator, each first coating region comprising several first protrusions, and each second coating region comprising several second protrusions; and in the direction of the thickness of the separator, the maximum height of each first protrusion from the carrier layer is H1, the maximum height of each second protrusion from the carrier layer is H2, and the relationship therebetween satisfies: H1:H2=(0.3-1):1. The jelly-roll cell can reserve an expansion space, thereby avoiding the problem of hole blockage caused by extrusion due to the inability to release the expansion stress of the battery cell, preventing the hindrance of lithium ion transmission, and significantly ameliorating the problems of black spots and lithium plating of the battery cell.
Absstract of: WO2025139044A1
A battery cell (100), a battery (1000), a battery module (2000), a battery pack (3000), and an electrical device (4000). The battery cell (100) comprises a housing (1); the housing (1) comprises a cover plate assembly (12) and a housing body (11) that together define an accommodating cavity (13); the cover plate assembly (12) comprises a cover plate (121) and an electrode post (122) connected in an insulated fashion on the cover plate (121); an electrode core (20) is arranged within the accommodating cavity (13); and a first electrode tab (201) and a second electrode tab (202) of opposite polarities are arranged at a same end of the electrode core (20); A first current collecting plate (3) is arranged within the accommodating cavity (13) and is located between the first electrode tab (201) and the cover plate assembly (12), and the electrode post (122) is electrically connected to the first electrode tab (201) by means of the first current collecting plate (3); a second current collecting plate (4) is arranged within the accommodating cavity (13) and is located between the second electrode tab (202) and the cover plate assembly (12), the cover plate (121) is electrically connected to the second electrode tab (202) by means of the second current collecting plate (4), and the second current collecting plate (4) is insulated from both the electrode post (122) and the first current collecting plate (3).
Absstract of: WO2025139025A1
Provided in the present application are a battery, a battery assembly and an electric device. The battery comprises a core, a cover plate assembly and an insulating film, wherein the core comprises a first end face and a second end face arranged opposite each other, and a plurality of side faces, the plurality of side faces being connected between the first end face and the second end face; the cover plate assembly is connected to and covers one side face; and the insulating film completely covers the first end face, the second end face and the other side faces, and the insulating film further covers a peripheral side wall at the end of the cover plate assembly that is close to the core. The battery, the battery assembly and the electric device provided in the present application have a simple structure, low manufacturing cost and a high rate of space utilization.
Absstract of: US2025219130A1
Disclosed are an all-solid-state battery including a reference electrode and a control method thereof. The all-solid-state battery includes the reference electrode located between an upper stack including one or more unit cells and a lower stack including one or more unit cells to determine potentials of electrodes in the all-solid-state battery so as to control driving of the all-solid-state battery.
Absstract of: US2025219094A1
A negative electrode for a secondary battery includes a silicon-containing particle, and a coating layer that covers at least a portion of the surface of the silicon-containing particle. The silicon-containing particle includes an ion-conducting phase, and silicon phases dispersed in the ion-conducting phase. The coating layer includes a lithium sulfonate compound and a linear saturated fatty acid compound having 10 or more carbon atoms.
Absstract of: US2025219068A1
Freestanding lithium-alloy anodes and fluorinated ether electrolytes for lithium-sulfur batteries. The freestanding lithium-alloy anode may include a dual-phase Li—Mg alloy phase and a Li2Ca alloy phase. The freestanding lithium-alloy anode may include a composite Li—Mg alloy. The composite Li—Mg alloys may include one or more of a lithium-ion conducting material, an electron conducting material, or an ionic filler. The freestanding lithium alloy anodes may include at least one anode protective layer.
Absstract of: US2025219063A1
This invention provides compositions comprising coated particles comprising silicon in which the coating is comprised of carbon and one or more lithium silicates, the coated particles comprising silicon having a carbon content of about 0.10 wt % or more and a lithium content of about 1 wt % or more, relative to the total weight of the coated particle. Processes for preparing these compositions are also provided.
Nº publicación: US2025219134A1 03/07/2025
Applicant:
SOLID POWER OPERATING INC [US]
Solid Power Operating, Inc
Absstract of: US2025219134A1
The present disclosure provides an electrolyte composition. The disclosure also generally relates to solid state batteries, and electrolyte compositions that may be used in solid state batteries. The disclosure also provides an electrolyte composition comprising lithium, phosphorous, and/or sulfur. The composition may further include a halogen. Without being bound by theory, the disclosure also provides an electrolyte composition comprising a novel x-ray diffraction (XRD) pattern.
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