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1450
results.
Updated on
18/07/2025 [07:37:00]
Results 850 to 875 of 1450
Absstract of: US2025219143A1
This application provides an electrolyte for a sodium secondary battery, a sodium secondary battery, and an electrical apparatus. An electrolyte for a sodium secondary battery is provided, where the electrolyte includes an additive, and the additive includes a fluorinated ether compound. In this application, through the addition of an additive, including a fluorinated ether compound, in the electrolyte, the high-temperature cycling performance of the battery can be improved, the high-temperature gas generation phenomenon of the battery can be alleviated, and the electrochemical performance and safety performance of the battery can be improved.
Absstract of: US2025219074A1
A cathode active material for a lithium secondary battery has a structure of a lithium transition metal oxide. A ratio of a crystallite size of a (003) plane to a crystallite size of a (110) plane measured by an X-ray diffraction (XRD) analysis is in a range from 0.7 to 2.0, and a ratio of the crystallite size of the (003) plane to a crystallite size of a (104) plane measured by the XRD analysis is in a range from 0.7 to 2.0. A cathode for a lithium secondary battery and a lithium secondary battery include the cathode active material for a lithium secondary battery.
Absstract of: US2025219169A1
The present disclosure relates to a wireless communication method between a plurality of battery management systems (BMSs) and a battery system providing the same. The battery system including at least one battery pack including a battery module and a slave battery management system (BMS) managing the battery module according to the present disclosure includes: a signal processing circuit; a capacitor connected between the signal processing circuit and a first ground; an inductor connected between a second ground and a wire between the first ground and the capacitor; and a controller configured to transmitting an AC signal having a predetermined frequency to the signal processing circuit in an antenna mode in which the slave BMS is configured to communicates with one or more other slave BMSs or a master BMS.
Absstract of: US2025219221A1
A package structure for a battery pack is provided. The package structure for the battery pack includes a tray structure and a cover body, the tray structure includes a tray body and a support portion. At least a part of the support portion protrudes from a periphery of the tray body in a planar extension direction of the tray body. The support portion cooperates with the tray body to form a groove located at the periphery of the tray body. The cover body is arranged on a first side of the tray body. A cavity is formed on a side, facing the tray body, of the cover body. The battery pack is located on the first side of the tray body and is accommodated in the cavity. At least a part of the cover body is lapped with the groove, and the tray body is accommodated in the cavity.
Absstract of: US2025219222A1
A frame structure includes an outer frame body and a battery rack disposed within the outer frame body. The battery rack includes at least two supporting frames disposed at intervals in a first direction. A flexible fixing member and a battery bracket for bearing a battery are disposed between two adjacent supporting frames. One end of the flexible fixing member is connected to a top frame of the outer frame body, a middle portion of each battery bracket is provided with a through hole, and another end of the flexible fixing member extends in a second direction through the through hole. A periphery of the flexible fixing member is provided with a supporting member. The supporting member is borne at a bottom of the battery bracket to support a middle position of the battery bracket, and thus the middle portion of the battery bracket is supported.
Absstract of: US2025219219A1
A container device includes a housing having six substantially quadrangular surfaces facing mutually different directions, the housing being formed in a substantially polyhedral shape, and a container portion provided inside the housing. The container portion contains a contained item to enable the contained item to be inserted and removed. The housing has a first member and a second member, the first member and the second member each being attached to the container portion, and the second member is attached to an opposite side of the first member across the container portion.
Absstract of: US2025219242A1
An improved battery pack of the type comprising an enclosure containing a plurality of battery cells having a flammable volatile electrolyte component. The improvement comprises a trapper material that absorbs the volatile flammable electrolyte component disposed inside the enclosure of the battery pack to absorb flammable volatile electrolyte component that leak from the cells in the enclosure.
Absstract of: US2025219254A1
This application provides a separator and a preparation method thereof, a secondary battery, and an electric apparatus. The separator includes a substrate and a coating, with the coating being provided on at least one side of the substrate and the coating including organic materials, where a weight per unit area of the coating for a single side is denoted as M, a thickness of the coating for a single side is denoted as H, and a true density of the organic materials is denoted as ρorganic, and the separator satisfies M/(H×ρorganic)≥0.4, where M is in unit of g/m2, H is in unit of μm, and ρorganic is in unit of g/cm3.
Absstract of: US2025219147A1
Disclosed are an additive composition for a lithium-ion battery electrolyte, an electrolyte including the additive composition, and a use of the electrolyte. The additive composition includes an unsaturated cyclic carbonate and an unsaturated chain carbonate. The unsaturated cyclic carbonate comprises at least one of the following compounds: formula (1-a), formula (1-b) and formula (1-c); the unsaturated chain carbonate has a general structural formula represented by formula (2), wherein R1 is a hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms, R2 is a hydrocarbyl or fluorinated hydrocarbyl containing 1 to 6 carbon atoms; and group A is a vinylidene or an ethynylene. Lithium ion batteries using the electrolyte have the advantages of low impedance, excellent cycle performance and the like, and the batteries also have excellent high-temperature cycle performance and high-temperature storage performance.
Absstract of: US2025219076A1
A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer supported by the positive electrode current collector. The positive electrode active material layer includes multiple holding particles each including anatase-type titanium oxide, and multiple positive electrode active material particles each including a sulfur-containing material. The holding particles form a porous structure by being directly joined to each other. The porous structure is directly coupled to the positive electrode current collector. The positive electrode active material particles are each held by any one of the holding particles. The holding particles have an average particle size of 100 nm or less.
Absstract of: US2025219162A1
Disclosed are a separator for a rechargeable lithium battery and a rechargeable lithium battery including the same. Specifically, an embodiment provides a separator for a rechargeable lithium battery including a substrate; and a coating layer located on one or both surfaces of the substrate and including a metal organic framework (MOF) of ZIF-8, Fe-BTC, or a combination thereof.
Absstract of: US2025219075A1
The present disclosure has an object to provide a method for manufacturing a positive electrode active material in which performance degradations of a capacity characteristic and an output characteristic are suppressed. The herein disclosed method for manufacturing the positive electrode active material includes a preparation step for preparing an end material of a positive electrode plate containing a positive electrode active material that has never been performing intercalation and deintercalation of a charge carrier, an alkaline liquid immersing step for immersing the end material into an alkaline liquid, a solid-liquid separation step for performing a solid-liquid separation on the alkaline liquid after the alkaline liquid immersing step so as to collect the solid substance, a classifying step for classifying the collected solid substance into a fine particle fraction and a coarse particle fraction, and a baking step for baking the coarse particle fraction.
Absstract of: US2025219200A1
Disclosed are an apparatus and a method for sealing a pouch type secondary battery. Insulation defects are prevented and a long-term reliability, such as a chemical resistance, is improved by evenly forming a polymer material pushed from a sealed portion in a tab part even in an unsealed portion to prevent a thickness of a sealant layer from being smaller when a pouch outer material and a lead tab film are sealed in accommodating a secondary battery by using a pouch outer material including a pouch film stack.
Absstract of: WO2025139414A1
A lithium-rich manganese-based positive electrode material and a preparation method therefor, a positive electrode sheet, a battery and electronic equipment. The lithium-rich manganese-based positive electrode material comprises first particles and second particles, wherein the first particles satisfy chemical formula (1), and the second particles satisfy chemical formula (2): aLi2O·bLi2MnO3·cLiXαX'βO2 (1)，and xLi2O·yLi2MnO3·zLiYγY'δO2 (2); in formula (1), -0.1≤a≤0, 0
Absstract of: US2025219251A1
Disclosed herein is a novel lithium-ion battery separator of a cellulose base exposed to a heat treatment within a specific range of temperatures and times subsequent to manufacture thereof. Such a separator exhibits an unexpected level of effective water scavenging within a lithium-ion battery cell without any compromise in separator capability in order to provide a simplified manner of mitigating hydrofluoric acid generation. Such a procedure protects transition metal cathode constituents from oxidation/dissolution which in turn leads to improvements in capacity retention within a subject lithium-ion battery.
Absstract of: US2025219216A1
The disclosure provides a cell housing, a cell, and a high-capacity battery. The cell housing has a soluble mechanism, and an inner cavity of the cell housing is in communication with an exterior after the soluble mechanism is in contact with an electrolyte. The cell housing has a simple housing structure, such that electrolyte cavities of cells can be in communication without mechanical operation, a plurality of cells are in a uniform electrolyte system, and a performance of the battery is improved.
Absstract of: US2025219217A1
A secondary battery includes an electrode assembly, a pouch accommodating the electrode assembly, and a cover tape attached to the pouch so as to at least partially cover at least two surfaces of the pouch. The cover tape includes a fixing area attached to a first surface of the pouch, a dot area attached to a second surface of the pouch, and adhesives on the fixing area and the dot area, and the adhesives have different adhesive forces.
Absstract of: US2025219253A1
A separator, a method for manufacturing the separator, an energy storage device, and an electricity-consumption apparatus are provided. The separator has a portion with a first porosity and a portion with a second porosity arranged in a width direction of the separator. The second porosity is less than the first porosity. The first portion is disposed closer to the tab of the energy storage device than the second portion.
Absstract of: US2025219212A1
In a method for manufacturing a power storage device, when a surface position of an accuracy requiring surface of a sealing member is located on a back surface side relative to a support point, the surface position is displaced toward a front surface side in advance. It is determined whether a surface displacement amount of the accuracy requiring surface relative to the support point satisfies a required reference value. When the surface displacement amount is determined to not satisfy the reference value, the sealing member is corrected by a load applied to the accuracy requiring surface until a position corresponding to a corrective deformation amount determined by adding the surface displacement amount and an elastic deformation amount allowing the sealing member to restore by its own elastic force to a normal position at which the surface displacement amount is zero, and then the load is removed.
Absstract of: US2025219073A1
The present invention may provide a cathode active material that exhibits excellent structural stability and lifespan retention rate even in a high-temperature environment where a battery is operating. In addition, the present invention may provide a cathode including an active material layer containing the cathode active material and provide a battery cell including the cathode. In addition, the present invention is aimed at providing a battery cell assembly including the battery cell. In addition, the present invention may provide an electric device including one or more selected from the group consisting of the battery cell and the battery cell assembly.
Absstract of: US2025219182A1
Embodiments described herein relate to removal of aluminum impurities from battery waste. In some aspects, a method for removing aluminum impurities includes preprocessing a quantity of battery waste to improve removal of aluminum impurities from the quantity of battery waste. The method further includes removing at least a portion of the aluminum impurities from the quantity of battery waste, modifying the removed aluminum impurities to form a coating precursor and/or a doping precursor, and applying the coating precursor and/or the doping precursor to an electrode material. In some embodiments, the method further includes characterizing the aluminum impurities in the quantity of battery waste and regenerating the electrode material. In some embodiments, the removing can be via sieving, cyclone separation, air separation, elutriation, and/or dissolution. In some embodiments, the doping precursor can include aluminum hydroxide (Al(OH)3). In some embodiments, the regenerating includes applying a heat treatment to the electrode material.
Absstract of: US2025219189A1
A battery pack includes a battery module, a pack housing on which at least one battery module is mounted, and a cooling tube assembly that is mounted within the pack housing. The battery module includes a cell assembly formed by stacking a plurality of battery cells, and a module frame for housing the cell assembly. One end of the battery module overlaps with the cooling tube assembly.
Absstract of: US2025219101A1
One embodiment of the present disclosure provides a copper foil including a copper film including 99.9 wt % or more of copper, and a protective layer disposed on the copper film, wherein the copper foil has a first moisture absorption rate of 0.1% or less. The first moisture absorption rate is expressed by Equation 1 below,first moisture absorption rate=(weight after 24-hour immersion-weight before immersion)/(weight after 24-hour immersion)×100 Equation 1wherein the immersion in Equation 1 refers to immersing a specimen in water at room temperature for 24 hours.
Absstract of: US2025219163A1
The present disclosure relates to an electrode for a secondary battery and a secondary battery comprising the same. The present disclosure is to provide an electrode which may prevent a short between electrodes in a secondary battery and to improve safety of a battery by preventing a short between an anode and a cathode.
Nº publicación: US2025219179A1 03/07/2025
Applicant:
PRIMOBIUS GMBH [DE]
Primobius GmbH
Absstract of: US2025219179A1
The invention relates to a method for preparing and evaluating lithium-ion batteries, having at least one step in which the batteries (2, 10) or comminuted in the presence of an aqueous medium (12), wherein the batteries (2, 10) are comminuted with a remaining charge of maximally 30% in a comminuting device (73) while adding water (12), and the water (12) is supplied in such a quantity and at such a temperature that the mixture is not heated above a temperature of more than 40° C., preferably above 30° C., during the comminuting process. The invention also relates to a corresponding facility (71).
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