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1293
resultados
Última actualización
30/09/2025 [07:12:00]
Resultados 100 a 125 de 1293
Resumen de: US2025300312A1
The battery cell that is provided with a groove portion, is configured to be capable of cracking along the groove portion so as to release the pressure inside the battery cell, and has a fracture initiation position. The groove portion includes a first, second and third groove section., The first groove section and the third groove section are oppositely arranged, and the second groove section is connected to the first groove section and the third groove section. The fracture initiation positions are formed at the first groove section and/or the third groove section. No fracture initiation position is formed at the second groove section, such that the pressure relief component has high fatigue resistance at the area of the second groove section, reducing the possibility of the pressure relief component cracking at the middle area of the second groove section during the normal use.
Resumen de: US2025297812A1
A vapor chamber includes a first cover, a second cover, a sealing ring and a sealing plug. The first cover has a thermal contact surface. The second cover is coupled with the first cover so as to form an interior space together, and the second cover has a vent hole. The sealing ring has a channel and at least one opening. The opening is in fluid communication with the channel, the sealing ring is clamped between the first cover and the second cover, and the vent hole is in fluid communication with the interior space via the channel and the opening. The vent hole and the channel are plugged with the sealing plug so as to seal the interior space.
Resumen de: US2025297340A1
A copper foil is provided, including 5 ppm to 25 ppm silver. 0.5 ppm to 8 ppm titanium, and 5 ppm to 85 ppm sulfur. Also provided are a current collector for a lithium ion secondary battery and a lithium ion secondary battery.
Resumen de: US2025300311A1
Provided is an energy storage power supply. The energy storage power supply includes cells, a housing, and a sealing member. The cells include electrodes and/or explosion-proof valves. A receiving chamber for receiving the cells is formed inside the housing. The housing has a mounting wall. A fixing structure for fixing the cells is formed at a side of the mounting wall close to the receiving chamber. The fixing structure has through holes corresponding to the cells. The electrodes and/or explosion-proof valves of the cells are in communication with an outside of the receiving chamber through the through holes. The sealing member covers a side of the mounting wall away from the receiving chamber to isolate the cells from an external environment.
Resumen de: US2025297811A1
A vapor chamber includes a first cover, a second cover, a sealing ring and a sealing plug. The first cover has a thermal contact surface. The second cover is coupled with the first cover so as to form an interior space together, and the second cover has a vent hole. The sealing ring has a channel and at least one opening. The opening is in fluid communication with the channel, the sealing ring is clamped between the first cover and the second cover, and the vent hole is in fluid communication with the interior space via the channel and the opening. The vent hole and the channel are plugged with the sealing plug so as to seal the interior space.
Resumen de: US2025300281A1
A bottom guard plate and battery box are provided in the present application. The bottom guard plate includes an upper skin; a lower skin spaced from the upper skin; an interlayer sandwiched between the upper skin and the lower skin. A thickness of the upper skin is greater than a thickness of the lower skin.
Resumen de: US2025300255A1
Disclosed are an electrode sheet, a battery, and an electronic device. The electrode sheet includes a current collector, an electrode tab, an active substance layer, and an active material layer. The current collector has a first surface and second surface opposite to each other. The electrode tab protrudes from the current collector. The active substance layer is disposed on the first surface and the second surface. The active material layer at least partially overlaps with or has a gap from one end of the active substance layer near the electrode tab. The active material layer includes a first active material layer disposed on the first surface and a second active material layer disposed on the second surface; wherein colors of the first active material layer and the second active material layer are different.
Resumen de: US2025300262A1
The present disclosure relates to the field of battery technology, specifically to a shunt device, a cooling device, a battery pack and an electrical device. The shunt device includes: a shunt box body and a mounting structure disposed on the shunt box body, wherein the shunt box body internally has a first diversion cavity and a second diversion cavity that are not connected to each other; the mounting structure includes an mounting channel and a separating panel, the mounting channel is disposed on the shunt box body and is connected to both the first diversion cavity and the second diversion cavity. The separating component is disposed inside the mounting channel, the separating component divides the mounting channel into a first communicating channel and a second communicating channel. The technical solution using the present disclosure may make the cooling device have an improved cooling effect.
Resumen de: US2025300245A1
An electric energy storage device, the electric energy storage device configured to be detachably coupled with an electrical device, the electric energy storage device comprises a housing, N sets of battery units received in the housing, N being a composite number, each battery unit comprising at least one battery cell, a plurality of switches, each switch connected to the output end of two different battery units, a control unit electrically connected to the switches and configured to control the switches to switch on or off in order to connect the battery units in parallel or series, wherein the electric energy storage device can output at least three different voltages. The electric energy storage device can be used for different types of power tools with different voltage requirements.
Resumen de: US2025300287A1
The present application relates to the technical field of energy storage, and in particular to an energy storage device. The energy storage device includes a cabinet and multiple dehumidifier sets. The multiple dehumidifier sets are arranged in a vertical direction inside the cabinet and are spaced apart. Each of the multiple dehumidifier sets includes multiple dehumidifiers that are arranged in a horizontal direction and are spaced apart, and a projection of each dehumidifier of one of two adjacent dehumidifier sets on a horizontal plane does not overlap a projection of each dehumidifier of the other one of the two adjacent dehumidifier sets on the horizontal plane.
Resumen de: US2025300243A1
A separator includes a polyethylene base film and a coating provided on at least one surface of the polyethylene base film, where a pore closing temperature of the separator is T1, a pore closing temperature of the polyethylene base film is T2, and 3° C.≤T2−T1≤17° C.; and the separator has a porosity P of 15% to 55% after being placed at 110° C. for 10 min. When the separator is used, during drop process of the secondary battery, a pore closing tendency of the separator can block reactions between positive and negative electrodes. This can improve the drop performance of the secondary battery at high temperatures and effectively improve the intermittent cycling performance of the secondary battery at high temperatures.
Resumen de: US2025300247A1
A battery cell includes a shell, an electrode assembly, a first processor, a detection sensor, and a second processor. The electrode assembly is arranged inside the shell. The first processor is arranged inside the shell. The detection sensor is arranged inside the shell and is electrically connected to the first processor via first communication lines. The second processor is arranged outside the shell and is electrically connected to the first processor via second communication lines. A quantity of the second communication lines is less than a quantity of the first communication lines.
Resumen de: US2025300270A1
An energy storage power supply is provided and includes a shell having a receiving chamber, in which the receiving chamber is provided with a first support having one or more first receiving recesses, each of the one or more first receiving recesses having a first via hole at a bottom of the first receiving recess; a battery cell located in the receiving chamber and disposed at the first support, the battery cell including a main body, the main body having an end fitted in a corresponding first receiving recess of the one or more first receiving recesses; a second support fixedly connected to the shell and disposed at a side of the battery cell away from the first support, the battery cell being sandwiched between the first support and the second support; and an inverter located in the receiving chamber and electrically connected to the battery cell.
Resumen de: US2025300174A1
Provided is a cathode material and a preparation method therefor, and a secondary battery. The cathode material is a lithium nickel cobalt oxide composite oxide. In an XRD pattern of the cathode material, a characteristic peak of a crystal face (104) includes a (104)−Kα1 diffraction peak and a (104)−Kα2 diffraction peak after peak splitting, a separation value between the (104)−Kα1 diffraction peak and the (104)−Kα2 diffraction peak is a, and 0.7≤α≤2.0. The cathode material has suitable particle size, good particle strength and sufficient internal defects, which are conducive to reducing the phenomenon of polarization of the cathode material, such that the secondary battery based on the cathode material has both better cycle stability and rate performance.
Resumen de: US2025300230A1
Use of a pyrosulfate-boron trifluoride composite metal salt in an electrolyte solution. The use of the pyrosulfate-boron trifluoride composite metal salt having at least one structure is added to an electrolyte solution at an addition amount of 0.1 wt % to 15.0 wt %. The pyrosulfate-boron trifluoride composite metal salt is obtained by means of the reaction of a pyrosulfate and boron trifluoride gas or a boron trifluoride complex. A pyrosulfate-boron trifluoride composite lithium salt is further applied to a lithium-ion secondary battery including a negative electrode containing an active material with a specific surface area of 0.1 m2/g to 20 m2/g.
Resumen de: US2025300190A1
A secondary battery includes a stacked electrode assembly with positive and negative electrode plates separated by a separator. The outermost electrode plate is a single-sided positive electrode plate composed of a first positive electrode current collector and a positive electrode active material layer. The current collector consists of a polymer layer and a conductive layer on the interior-facing surface, with the active material layer disposed on the conductive layer. Other positive electrode plates in the assembly are double-sided and include a second positive electrode current collector with active material layers on both sides. At least one of these double-sided current collectors is made of metal.
Resumen de: US2025300233A1
The present application provides a battery, a method for manufacturing the battery, and an electric device. The battery includes a positive electrode sheet, a negative electrode sheet, and at least one laminated structure disposed on either the surface of the positive electrode sheet facing the negative electrode sheet or the surface of the negative electrode sheet facing the positive electrode sheet. The laminated structure includes an ion transport layer and an electron insulation layer stacked together. The battery does not include a separator.
Resumen de: US2025300220A1
A preparation method and an application of an interpenetrating solid electrolyte interface are provided. According to the present disclosure, a lithium metal electrode plate is prepared into a lithium oxide plating layer in an air atmosphere, and then a lithium sulfide plating layer is prepared by soaking in a lithium polysulfide plating solution, and then a lithium sulfide/lithium oxide interpenetrating solid electrolyte interface is obtained by drying at normal temperature.
Resumen de: US2025300189A1
Provided is a copper foil, including 2 ppm to 21 ppm silver, 0.5 ppm to 5.5 ppm titanium, and 2 ppm to 80 ppm sulfur, wherein an orientation index of (220) surface of the copper foil is from 2.05 to 3.08. Also provided are a current collector for a lithium ion secondary battery and a lithium ion secondary battery.
Resumen de: US2025300178A1
A hard carbon negative electrode material includes a microstructure of multi-microporous layers. A most probable pore size of the micropores is 0.35 nm-1.5 nm, and a conductivity of the hard carbon negative electrode material under 63.66 Mpa is 0.3-130 S/cm. This hard carbon negative electrode material has a special ultrafine micropore structure. When applied to lithium-ion batteries, it can achieve micropore lithium insertion, allowing lithium ions to transform into clustered lithium within the microporous structure of the hard carbon negative electrode material near 0V voltage. This effectively prevents the growth of lithium dendrites while also effectively controlling the volume expansion of the negative electrode material before and after lithium insertion, thereby reducing the voltage between the positive and negative electrodes and improving high-temperature cycling.
Resumen de: US2025300229A1
A lithium-ion secondary battery includes an electrolyte, a positive electrode plate, a separator, and a negative electrode plate. The electrolyte includes a first additive and a second additive, based on a mass of the electrolyte, W1% is a mass percentages of the first additive and W2% is a mass percentages of the second additive, 0.05≤W1≤0.8 and 0.01≤W2≤4.1. The negative electrode plate includes a negative electrode current collector and a negative electrode material layer containing a negative electrode active material.
Resumen de: US2025300217A1
A sodium-ion energy storage apparatus is provided, including: a positive electrode, a negative electrode, a separator, and an electrolyte; a positive electrode active material of the positive electrode includes Ce1-xMxO2, M is at least one metal and 0.01≤x≤0.25; and a negative electrode active material of the negative electrode includes a sodium source that generates sodium ions. The positive electrode of the present disclosure uses Ce1-xMxO2 obtained by doping CeO2 with the metal M as the positive electrode, and the capacity is increased by two to three times compared to undoping.
Resumen de: US2025300188A1
Provided is a surface-treated copper foil for a lithium ion secondary battery, including a copper layer having a first side and an opposite second side and nickel-containing treatment layers disposed on the first side and the second side of the copper layer respectively, wherein a nickel coating amount on each side of the copper layer is ≥3.0 104 μg/dm2, and each treatment layer provides a treated surface with lightness value (L*) of color space of 30 to 60 and reduced dale height (Svk) of 0.10 to 0.65 μm. Provided also are a current collector for a lithium ion secondary battery and a lithium ion secondary battery.
Resumen de: US2025300182A1
An ionic polymer binder having a chemical structure shown in formula I or formula II is provided. An interaction between hexafluorophosphate group in the ionic polymer binder and a cathode active material could enhance bonding among the materials, improve the conductivity of lithium ions, and increase an active material loading capacity of the cathode.
Nº publicación: US2025300169A1 25/09/2025
Solicitante:
YINZHU NINGBO TECH LIMITED [CN]
YINZHU (NINGBO) TECHNOLOGY LIMITED
Resumen de: US2025300169A1
A lithium iron phosphate/carbon/lithium-rich lithium iron oxide composite cathode material and a preparation method and an application thereof are provided. The preparation method includes the following steps: mixing iron salt, lithium compound, orthophosphate and an organic salt with water, to obtain a mixed slurry; performing a spray granulation on the mixed slurry, to obtain a precursor powder; and performing a heat preservation on the precursor powder in a protective atmosphere, to obtain a lithium iron phosphate/carbon/lithium-rich lithium iron oxide composite cathode material. The preparation method is based on the characteristics that electric double layer physical energy storage of porous carbon can enhance the rate, and lithium-rich lithium iron oxide additive can increase the system lithium source and prolong the service life, combined with the synthesis process of lithium iron phosphate and lithium-rich lithium iron oxide, a lithium iron phosphate/carbon/lithium-rich lithium iron oxide composite cathode material is synthesized by one-step method.
BOPI
Sede Electrónica
