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1452
results.
Updated on
06/05/2025 [07:23:00]
Results 250 to 275 of 1452
Absstract of: WO2025086616A1
An electrolyte, a secondary battery, and an electrical apparatus. The electrolyte comprises an organic solvent and inorganic nanoparticles. The inorganic nanoparticles are suspended and dispersed in the organic solvent. The electrolyte has short sustainable combustion time and high oxidation voltage. The battery has a long thermal runaway time and excellent cycling stability.
Absstract of: US2025135913A1
A battery system includes an array of cells and an insulating plate. The array of cells is arranged in first and second subsets of cells. The first and second subsets of cells define a space therebetween. The insulating plate has a central region disposed within the space. The insulating plate has first and second lateral regions disposed external to the space and extending beyond first and second opposing lateral ends of the array of cells, respectively. The central region has a first dimension extending in a first direction between the first and second subsets of cells. The first and second lateral regions have second and third dimensions, respectively, extending in a second direction. The second direction is substantially parallel to the first direction. The second and third dimensions are greater than the first dimension.
Absstract of: US2025135896A1
A vehicle includes a system performing a method of operating the vehicle. The system includes a battery pack, a sensor associated with the battery pack, a cooling system for cooling the battery pack, and a processor. The processor is configured to measure a battery pack parameter of the battery pack for an occurrence of a battery pack fault, measure a sensor parameter for the occurrence of a sensor fault in the sensor, measure a cooling system parameter of the cooling system for the occurrence of a cooling system fault, determine an ingress of a fluid into the battery pack based on the occurrence of the battery pack fault and one of the sensor fault and the cooling system fault, and perform an action based on the ingress of the fluid into the battery pack.
Absstract of: US2025135730A1
Aspects of the disclosure include systems and methods that leverage adjacent component heating to accelerate the cure time of thermal interface adhesives. An exemplary method can include receiving a battery pack and a thermal management system including a cooling plate, an upper tray, and a lower tray joined to opposite surfaces of the cooling plate to define an enclosed volume therebetween. The method includes wetting an interface between the battery pack and the thermal management system with an adhesive and joining the battery pack to the thermal management system at the interface. The method includes directing a heating fluid through the enclosed volume, thereby heating the adhesive. The method includes, responsive to determining that a temperature of the adhesive has reached a target temperature, maintaining the temperature for a soak time according to a cure curve of the adhesive to achieve a target bond strength.
Absstract of: US2025135522A1
A secondary battery case manufacturing device includes a die including a first surface and a second surface that are opposite to each other, a punch hole extending through the first surface and the second surface, a punch arranged to face the first surface and configured to press a workpiece toward the punch hole in a first direction, a knockout member arranged to face the second surface and configured to press the workpiece in a second direction opposite to the first direction, and a stamp member on the knockout member and configured to imprint a pattern on the workpiece as the knockout member comes into contact with the workpiece.
Absstract of: US2025140856A1
An electrode material having a structure of Formula Awherein R1, R2, R3, R4 and R5 are H or Formula A-1
Absstract of: US2025140815A1
An electrochemical device, including a positive electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer disposed on a surface of the positive electrode current collector. The positive electrode active material layer includes a base portion and a protruding portion on a surface of the base portion away from the current collector, where a thickness of the base portion is d microns, and a height of the protruding portion is a microns. The positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes a lithium-nickel composite oxide, where a molar proportion of element nickel in the lithium-nickel composite oxide in metal elements other than lithium in the lithium-nickel composite oxide is X, satisfying: 0.2d×x≤a≤1.15d×x.
Absstract of: US2025137088A1
The invention provides a method for producing valuable metals from raw material containing the valuable metals containing Cu, Ni, and Co, the method including: a preparation step of preparing a raw material containing at least Li, Al, and the valuable metals; a reductive melting step; and a slag separation step of separating slag from the reduced product to recover an alloy, wherein in any one or both of the preparation step and the reductive melting step, a flux containing calcium (Ca) is added to the raw material, and in the reductive melting step, while cooling the furnace wall of the melting furnace by the cooling means, the thickness of the slag layer is adjusted so that the temperature of the interface between a layer of the alloy and a layer of the slag is higher than the temperature of the refractory surface of the furnace wall in the melting furnace.
Absstract of: US2025140825A1
A lithium-ion battery with an enhanced electrode structure and methods for forming such an electrode structure are discussed. The electrode assembly comprises a pre-coat layer compressed with a metal current collector on which a lithium-manganese rich active layer is then deposited and compressed to form the assembly. The disclosed electrode structure reduces internal resistance.
Absstract of: US2025140827A1
One embodiment of the present invention provides a positive electrode active material for a sodium secondary battery, including P2-type layered oxide particles and O3-type layered oxide particles, wherein in SEM-EDS mapping analysis, an atomic ratio (S3/S2) of a surface Na content (at %) (S3) of the O3-type layered oxide particles to a surface Na content (at %) (S2) of the P2-type layered oxide particles is 0.4 to 1.6.
Absstract of: WO2025087170A1
A rolling mechanism, a coating apparatus and a battery production system. The rolling mechanism comprises at least three work rolls (10) and a plurality of support rolls (20), wherein the at least three work rolls (10) are sequentially arranged along a preset path, and a rolling gap (f) is formed between every two adjacent work rolls (10) on the preset path; one of the work rolls (10) is defined as a calibration roll (11), and two work rolls (12) adjacent to the calibration roll (11) are arranged in two intersecting radial directions of the calibration roll (11); and some of the support rolls (20) support the work rolls (10) located at a first position, some of the support rolls (20) support the work rolls (10) located at the last position, and the remaining support rolls (20) support the calibration roll (11). During an advancing process of a film belt, the calibration roll cooperates with the work rolls adjacent thereto to effectively support the film belt, thus reducing the risk of breakage of the film belt; and the support rolls reduce the bending deformation of the work rolls during a rolling process, and relieve the problem of the thickness of the film belt not being uniform due to the poor consistency of rolling gaps, thus facilitating the improvement in the uniformity of the thickness of the film belt.
Absstract of: WO2025087111A1
An electrode sheet, a battery cell, and an electric device. The electrode sheet comprises a current collector, a first transition layer, a second transition layer, two active material layers, a first conductive member, and a second conductive member. The current collector comprises a supporting layer, a first conductive layer, and a second conductive layer. The current collector further comprises a first section and a second section. The first transition layer is located in the first section. The second transition layer is located in the first section. One of the active material layers is arranged on the first transition layer, and the other of the active material layers is arranged on the second transition layer. The first conductive member is arranged on the first conductive layer. The second conductive member is arranged on the second conductive layer. The first conductive member and the second conductive member are welded and form a plurality of welding marks, and at least one welding mark is further connected to the current collector. The current collector further comprises a first part and a second part, the projection of an edge part of each active material layer adjacent to the welding marks and the projection of the first part overlap, and the second part is provided with welding marks. The tensile strength of the first part is smaller than that of the second part. The electrode sheet can improve the safety.
Absstract of: WO2025087125A1
A battery cell (20), a battery (10), and an electric device, capable of increasing the pass rate of the assembly of the battery (10). The battery cell (20) comprises: a casing (212) having an opening; an end cover (211) sealing the opening; and an insulating member (23) provided in the casing (212), one of the insulating member (23) and the end cover (211) being provided with a first recess (231), the other of the insulating member (23) and the end cover (211) being provided with a first protrusion (213), and the first recess (231) matching the first protrusion (213).
Absstract of: WO2025086506A1
The present application provides a polymer, a base coating slurry, a composite current collector, a secondary battery, and an electric device. The polymer comprises a core part and a shell part at least partially covering the core part, the core part comprises a structural unit derived from a monomer shown in formula I and a structural unit derived from a monomer shown in formula II, and the shell part comprises a structural unit derived from a monomer shown in formula III, wherein R1 and R3 each independently comprise one or more of hydrogen, and substituted or unsubstituted C1-5 alkyl groups, R2 comprises a substituted or unsubstituted C1-9 alkyl group, Ar is a substituted or unsubstituted aryl group, n is any integer of 1-3, and the glass transition temperature of the polymer is less than 60°C.
Absstract of: WO2025086283A1
Provided are a secondary battery and an electronic device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte, wherein the electrolyte comprises propionate and a first additive, and the first additive comprises at least one of a compound of formula (Ia), a compound of formula (Ib), or a compound of formula (Ic). By regulating the electrolyte, the impedance of the secondary battery can be reduced while the low-temperature performance of the secondary battery is improved.
Absstract of: WO2025086496A1
A lithium supplement and a preparation method therefor, a positive electrode sheet, and a battery. The lithium supplement comprises: a core, wherein the core comprises LiaMbOc, wherein a is 2-6, b is 0-4, c is 1-6, and M comprises at least one of Mg, Al, Si, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, and Sn; and a coating layer, wherein the coating layer at least covers part of the surface of the core, and the coating layer contains at least one of a silazane compound, a siloxane compound, a sulfonic acid silane compound, and a carbodiimide compound.
Absstract of: WO2025086550A1
A positive electrode material, and a preparation method therefor and a use thereof. The preparation method comprises the following steps: (1) injecting, in a concurrent flow, a nickel-cobalt-manganese ternary salt solution, a precipitant, and a complexing agent into a base solution, and controlling the stirring speed to perform a co-precipitation reaction to obtain a crack precursor; (2) mixing the crack precursor with a lithium source, and carrying out multi-stage sintering to obtain an oxide precursor; and (3) carrying out heat treatment on the oxide precursor to obtain the positive electrode material. With a simple approach, the disadvantages of precursor cracks are fully converted to advantages; and by means of multi-stage sintering, the interior of a positive electrode particle can have a phase change without adding a fluxing agent, so as to form a structure having a single crystal shell and a polycrystalline interior.
Absstract of: US2025135516A1
A roller is configured to roll an electrode plate, and the roller includes a rolling portion and a temperature regulating assembly. A rolling surface for rolling the electrode plate is formed on an outer surface of the rolling portion, and a mounting hole is provided inside the rolling portion along an axial direction of the rolling portion. The temperature regulating assembly is provided in the mounting hole and configured to exchange heat with the rolling portion. A rolling apparatus has a first roller and a second roller. The first roller and the second roller are jointly configured to roll an electrode plate. When the rolling portion is rolling an electrode plate, the temperature regulating assembly regulates a temperature of the rolling portion along the axial direction, so as to adjust the radial deformation of the rolling portion depending on the rules of thermal expansion and contraction.
Absstract of: US2025135523A1
A method of making a cold plate includes stacking three aluminum sheets on top of each other while each of the three aluminum sheets is generally flat. An edge of the three aluminum sheets are secured together. A top one of the aluminum sheets is welded to a middle one of the aluminum sheets at a plurality of first locations and a bottom one of the aluminum sheets is welded to the middle one of the aluminum sheets at a plurality of second locations different than the plurality of first locations. A pressurized medium is supplied between the top one of the aluminum sheets and the bottom one of the aluminum sheets to separate the top one of the aluminum sheets from the bottom one of the aluminum sheets and deform the middle one of the aluminum sheets.
Absstract of: US2025135524A1
The present invention relates to a sealed portion folding apparatus and method for pouch-shaped battery cells, and more particularly to a sealed portion folding apparatus for pouch-shaped battery cells including a lower unit configured to allow a sealed portion to be seated thereon. The lower unit includes a lower folding block configured to perform horizontal reciprocation and upward and downward movement, an upper unit including an upper folding block configured to perform horizontal reciprocation and upward and downward movement and to press the sealed portion so as to be bent to a predetermined angle, a lower folding guide unit configured to perform upward and downward movement and to guide the sealed portion so as to be bent to a predetermined angle, and an upper folding guide unit configured to perform upward and downward movement and to guide the sealed portion so as to be bent to a predetermined angle.
Absstract of: US2025135486A1
A punching oil coater includes a coating device configured to correspond to feed rollers that contact an electrode plate and move the electrode plate and are at different positions from each other, and rotate to contact and coat a pair of uncoated portions of mutually symmetrical surfaces of the electrode plate with punching oil as the feed rollers press the pair of uncoated portions against the coating device and move the electrode plate; a sprayer configured to spray the punching oil onto the coating device; a punching oil supply device configured to uniformly control a flow amount and flow rate of the punching oil supplied to the sprayer; and a coating controller configured to control a punching oil coating operation for the electrode plate.
Absstract of: US2025140822A1
A positive electrode active material precursor according to one aspect of the present invention may be a precursor including a plurality of hydroxide particles, and may satisfy Relational Expression 1 below in an XRD pattern obtained through Rietveld fitting as a result of X-ray diffraction (XRD) analysis using a CuKα ray:0.82≤FWHM(102)≤1.22,RelationalExpression1wherein a positive electrode active material precursor according to one aspect of the present invention may be also a precursor including a plurality of oxide particles, and may satisfy Relational Expression 2 below in an XRD pattern obtained through Rietveld fitting as a result of X-ray diffraction (XRD) analysis using a CuKα ray:127≤XRDpeakIntegralbreadth/4tanθ≤137,RelationalExpression2wherein, in above Relational Expression 1, said FWHM(102) means a full width at half maximum (FWHM(deg., 2θ)) of a (102) plane at an XRD peak defined by a hexagonal lattice having a R-3m space group, and in above Relational Expression 2, XRD peak Integral breadth is a value obtained by dividing an “area of the XRD peak” by a “height of the XRD peak,” and θ is a Bragg angle of the corresponding peak.
Absstract of: US2025140828A1
This invention provides a method for treating positive electrode active material particles comprising steps of a lithium-nickel composite is introduced into water and stirred to prepare a slurry; an aluminum-containing solution is dripped onto the slurry while the slurry is stirred; the slurry on which the aluminum-containing solution has been dripped is filtered to obtain a cake-like compound; and the cake-like compound is dried by performing a heat treatment, and a Li—Al hydroxide coating layer is formed on surfaces of secondary particles of the lithium-nickel composite, and at least part of grain boundary portions formed by adjacent primary particles located on the outermost surface, among a plurality of primary particles constituting the secondary particles, and thus possible to restrict any more cracking of particles than necessary and to control the amount of residual lithium, and a deterioration in battery characteristics can be restricted, even with repeated use over long time.
Absstract of: US2025140826A1
The present invention provides a positive electrode active material for a sodium secondary battery, including layered oxide particles containing at least sodium and a transition metal, and a coating layer located on the layered oxide particles, wherein the coating layer includes at least two compounds selected from compounds having crystal structures belonging to space groups P421c, Fd-3m, and Pnma, respectively.
Nº publicación: US2025141261A1 01/05/2025
Applicant:
ALCON INC [CH]
Alcon Inc
Absstract of: US2025141261A1
A surgical system including battery packs, a power subsystem and a controller is provided. The power subsystem is configured to connect at least two battery packs in parallel during a backup mode, disconnect the battery packs in a non-backup mode, and prevent each battery pack from charging one or more other battery packs during parallel operation. The controller is configured to individually charge each battery pack to a power capacity equal to or less than a predetermined power capacity, such as 100 Wh.
BOPI
Electronic site
