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1421
results.
Updated on
13/07/2025 [07:19:00]
Absstract of: FR3158195A1
Circuit de fluide diélectrique pour un dispositif de régulation thermique, notamment de véhicule automobile L’invention concerne un circuit de fluide diélectrique pour un dispositif de régulation thermique, ledit circuit comprenant au moins un conduit (11) de distribution en fluide diélectrique et un nombre prédéfini de buses (13) d’aspersion configurées pour projeter du fluide diélectrique, par au moins un orifice de projection. Au moins deux orifices de projection sont configurés pour arroser au moins une zone commune (Z1, Z2) d’au moins un logement (7) dudit dispositif. Au moins un premier orifice est agencé pour projeter au moins un premier jet (J1) de fluide diélectrique sur la zone commune (Z1, Z2) à une première distance (D1) d’une bordure du logement (7). Au moins un deuxième orifice est agencé pour projeter au moins un deuxième jet (J2) de fluide diélectrique sur la zone commune (Z1, Z2) à une deuxième distance (D2) plus éloignée de la bordure du logement (7). Figure pour l’abrégé : Fig. 3
Absstract of: US2025226396A1
A positive electrode active material for a rechargeable lithium battery includes a first positive electrode active material including a layered lithium nickel-manganese-based composite oxide having a nickel content of at least 70 mol % based on 100 mol % of a total metal excluding lithium in the first positive electrode active material, and being in a form of secondary particles having an average particle diameter (D50) of about 10 μm to about 25 μm, and a second positive electrode active material including a lithium cobalt-based oxide, being in the form of single particles having an average particle diameter (D50) about 1 μm to about 9 μm, wherein a difference between the average particle diameter (D50) of the secondary particles of the first positive electrode active material and the average particle diameter (D50) of the single particles of the second positive electrode active material is at least about 5 μm.
Absstract of: US2025226443A1
In one aspect, the disclosure relates to gel polymer compositions and articles comprising gel polymer compositions. In one aspect, the gel polymer compositions comprise: a first polymer comprising poly(ethylene glycol), poly(pentyl malonate), or a derivative thereof; poly(2,2′-disulfonyl-4,4-benzidine terephthalamide) (PBDT); and a salt. The disclosure also relates to methods for forming compositions disclosed herein, comprising: dissolving both a salt and a first polymer in a first solvent, thereby forming a first mixture; dissolving PBDT in a second solvent, thereby forming a second mixture; combining the first mixture and the second mixture, thereby forming an intermediate mixture; pouring the intermediate mixture onto a substrate; drying the intermediate mixture and the substrate; and removing the dried intermediate mixture from the substrate, thereby forming a polymer membrane. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Absstract of: US2025226477A1
A battery self-heating device includes a battery self-heating circuit and a controller. The battery self-heating circuit includes a first battery group, a second battery group, a bridge arm, and a winding corresponding to the bridge arm. A negative electrode of the first battery group and a positive electrode of the second battery group are connected to each other, and are connected to an output end of the winding. An input end of the winding is connected to a midpoint of the bridge arm. A positive electrode of the first battery group is connected to a first bus end of the bridge arm. A negative electrode of the second battery group is connected to a second bus end of the bridge arm. The controller is configured to adjust the duty ratio of the bridge arm according to a target duty ratio range.
Absstract of: US2025226440A1
A method of preparing a sulfide-based solid electrolyte according to embodiments comprises mixing a solvent and precursors in a reactor. In the reactor, an open vacuum atmosphere is formed. While maintaining the open vacuum atmosphere in the reactor, a mixture inside the reactor may undergo a reaction under conditions of stirring or applying ultrasonic waves. Accordingly, a high-purity sulfide-based solid electrolyte may be prepared with high efficiency.
Absstract of: US2025226478A1
The present document describes systems and techniques of a battery heater failsafe circuit in a video-capturing doorbell. In aspects, the battery heater failsafe circuit is configured to monitor a temperature of one or more regions proximate or adjacent to a battery. If, while under software control of a processing unit, a battery heater is activated and, due to a software malfunction, the battery approaches or is equal to an upper threshold temperature, then the battery heater failsafe circuit can override the software-control of the battery heater to disconnect the battery heater from the processing unit and/or the battery. When, as a result, the temperature of the battery equals or drops below a lower threshold temperature, the battery heater failsafe circuit is capable of reconnecting the battery heater to the processing unit and/or the battery sufficient to enable a reactivation of the battery heater and allow heat generation.
Absstract of: US2025226442A1
An electrolyte for a battery that cycles lithium ions includes a polyacrylamide and a liquid electrolyte immobilized in the polyacrylamide. The polyacrylamide includes acrylamide monomers covalently bonded to one another. The liquid electrolyte includes a lithium salt in an organic solvent.
Absstract of: US2025226415A1
A negative electrode active material, a negative electrode including the same, a secondary battery including the same and a method for preparing a negative electrode active material are provided. The negative electrode active material comprises silicon-based particles comprising SiOx (0<x<2) and a lithium (Li) compound; a carbon layer provided on at least a part of a surface of the silicon-based particles; lithium fluoride (LiF); and carbon fluoride (CFa, 0<a<4), wherein a content (atomic percentage) of F is 10 at % or more and a content of Li is less than 10 at % according to a surface analysis of the negative electrode active material by X-ray photoelectron spectroscopy.
Absstract of: US2025226529A1
A ZnP2 coated separator as a barrier to restrict the polysulfide shuttling is provided. A ZnP2 coated separator have surface anchoring group to bind and catalyze sulfide conversion is also provided. Further, a process is provided for synthesizing the ZnP2 modified separator. Furthermore, an energy device with the coated separator is described.
Absstract of: US2025226441A1
The present invention concerns a new method for the preparation of a Li-P-S product, as well as the products obtainable by said methods, and uses thereof especially as solid electrolytes.
Absstract of: US2025226474A1
A battery cooling device for cooling a battery module having battery cells, includes: first and second coolers and a distribution pipe for dividing and supplying cooling liquid to the first and second coolers. Further, the distribution pipe includes an upstream pipe, first and second supply pipes, and a flow rate adjusting valve for adjusting a flow rate of the cooling liquid supplied to the first cooler, and the flow rate adjusting valve opens and closes according to the flow rate of the cooling liquid flowing through the upstream pipe, and opens as the flow rate of the cooling liquid flowing through the upstream pipe increases.
Absstract of: US2025226439A1
A secondary cell is provided. The secondary cell comprises a solid electrolyte to conduct oxygen ions, a positive electrode configured to be in contact with the solid electrolyte, and a negative electrode configured to be in contact with the solid electrolyte. The positive and the negative electrode comprise a mixed ionic and electronic structure for conducting oxygen ions and electrons. The mixed ionic and electronic structure comprises an ABO3 structure, wherein the A site corresponds to a first chemical element with a first covalent radius, wherein the B site corresponds to a second chemical element with a second covalent radius; and/or a CeMO2 structure, wherein the Ce is Cerium and M is a metal.
Absstract of: US2025226475A1
Provided herein are direct evaporative cooling devices and systems that are in open and closed configurations for cooling hot solid components. The devices in both configurations generally have a casing with a perforated surface where sealed within are a water/vapor separator with a reservoir volume and a thermally conductive media therein through which heat evaporates water within the media such that evaporation cools the hot solid component. The closed configuration of the device includes a condensor to receive, recondense the vapor to water and re-inject the water into the reservoir volume.
Absstract of: US2025226438A1
A negative electrode plate includes a negative electrode material. The negative electrode material includes a matrix material, and a fast ion conductor is present on a surface of the matrix material. The fast ion conductor is a lithium lanthanum zirconium oxide. Dv50 of the matrix material is D1 μm, and Dv50 of the fast ion conductor is D2 μm, where D2/D1≤0.1 and 0.05≤D2≤1.
Absstract of: US2025226437A1
The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo6Z8 (Z=sulfur) or Mo6Z18-yZ2y (Z1=sulfur; Z2=selenium), and partially cuprated Cu1Mo6Z8 as well as partially de-cuprated Cu1-xMgxMo6S8 and the precursors have a general formula of MxMo6Z8 or MxMo6Z18-yZ2y, M=Cu. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.
Absstract of: US2025226457A1
An inorganic ion-conducting membrane treated to modify its surface properties can improve battery cell performance. Membrane surfaces positioned to directly interface with liquid electrolyte(s) on one or both of its major surfaces can be modified to mitigate polarization effects arising from ionic space charges at the solid electrolyte/liquid electrolyte interface when disposed in a battery cell. This surface modification can include fluid treatments that modify the ionic space charge layer to reduce battery cell polarization. The cell polarization can be reduced by at least 10 mV, 50 mV or at least 100 mV as a result of using this surface-modified membrane compared to the same membrane that was not surface-modified.
Absstract of: US2025226454A1
A cylindrical nonaqueous electrolyte secondary battery according to the present invention is provided with: a wound electrode body which is obtained by winding a positive electrode and a negative electrode with a separator being interposed therebetween; a nonaqueous electrolyte; and an outer package can in which the electrode body and the nonaqueous electrolyte are contained. The negative electrode has a bent part, which is bent toward the inner winding side, at a position that is closer to the winding start point than a facing part which faces a leading end part of the positive electrode on the inner winding side of the leading end part. This nonaqueous electrolyte secondary battery can suppress deformation of the negative electrode toward the leading end part of the positive electrode, thereby achieving good cycle characteristics.
Absstract of: US2025226476A1
There is provided a vehicle battery unit including: a battery module including a battery cell stack where chargeable-dischargeable battery cells are stacked; a housing case including upper and lower cases and having a housing space to house the battery module; a flow-path forming plate defining a plate-shaped refrigerant-flow-path with the lower-case bottom at a predetermined flow-path interval, the battery module being cooled with a liquid-refrigerant flowing through the plate-shaped refrigerant-flow-path from a bottom-rear-surface of the lower case, the plate-shaped refrigerant-flow-path having a flow region accounting for 90% or more of the bottom-rear-surface of the lower case; a refrigerant-supply-nozzle being a slit or flat nozzle, the liquid-refrigerant being supplied through the refrigerant-supply-nozzle to flow over 90% or more of a flow path width of the plate-shaped refrigerant-flow-path; a liquid-refrigerant-supply header that supplies the liquid-refrigerant to the refrigerant-supply-nozzle; and a liquid-refrigerant-discharge header that discharges the liquid-refrigerant from the plate-shaped refrigerant-flow-path.
Absstract of: US2025226436A1
Embodiments of the present technology may include flexible all-solid-state lithium-ion batteries. The batteries may include a plurality of jelly roll battery cells. Each jelly roll battery cell may include a cathode, an anode. and a hybrid solid electrolyte membrane. The cathode may be or include a first self-supporting lithium-based composite. The anode may be or include a second self-supporting lithium-based composite. The hybrid solid electrolyte membrane may be positioned between the cathode and the anode.
Absstract of: US2025226434A1
Proposed are a high-temperature pressurizing system 1 for an all-solid-state secondary battery, and a method thereof. More specifically, Proposed are a high-temperature pressurizing system 1 for an all-solid-state secondary battery, and a method thereof, in which a pressurizing part, where a high-temperature pressurizing process is performed between a solid electrolyte and an active material of an all-solid-state secondary battery to maximize a contact interface and minimize an interfacial resistance, is configured along a perpendicular direction, thereby eliminating the need for a process of discharging a fluid from an internal space of a vessel after completing the high-temperature pressurizing process, reducing a tact time. At the same time, a plurality of pressurizing parts is arranged at predetermined intervals, thereby increasing process efficiency.
Absstract of: US2025226435A1
A battery cell and a method of manufacturing a battery cell are disclosed. A battery cell includes an electrode assembly including a first electrode plate and a second electrode plate, a case in which the electrode assembly is accommodated, a cap assembly configured to cover an open area of the case, and a gasket between an upper portion of the electrode assembly and the cap assembly and arranged in close contact with the case.
Absstract of: US2025226456A1
A method and apparatus for generating electricity using an electrochemical cell with a thin aluminum wire as the anode, oxygen extracted from ambient air as the cathode, and a bioplastic electrolyte. The invention teaches the use of inexpensive materials and simplified fuel cell construction and assembling of cells into modules, and modules into ultra-low-cost electricity generators.
Absstract of: US2025226449A1
Batteries such as Li-ion batteries are provided that comprise anode and cathode electrodes, an electrolyte ionically coupling the anode and the cathode, and a separator electrically separating the anode and the cathode. In some designs, the electrolyte may comprise, for example, a mixture of (i) a Li-ion salt with (ii) at least one other metal salt having a metal with a standard reduction potential below −2.3 V vs. Standard Hydrogen Electrode (SHE). In other designs, the electrolyte may be disposed in conjunction with an electrolyte solvent that comprises, for example, about 10 to about 100 wt. % ether. In still other designs, the battery may further comprise anode and cathode interfacial layers (e.g., solid electrolyte interphase (SEI)) disposed between the respective electrode and the electrolyte and having different types of fragments of electrolyte solvent molecules as compared to each other.
Absstract of: US2025226432A1
An electrode assembly, a battery, a battery pack and a vehicle including the same are provided. In the electrode assembly, the uncoated portion of an electrode includes a segment region divided into a plurality of segments, and the segment region includes a plurality of segment groups separated by a group separation pitch along a winding direction. One end of the electrode assembly includes a plurality of segment alignments. In winding turns corresponding to the plurality of segment alignments, group separation pitches of segment groups disposed in a same winding turn are substantially identical, and separation pitches of the segment groups is greater in a winding turn of a region adjacent to the outer circumference of the electrode assembly than in a winding turn of a region adjacent to the core of the electrode assembly.
Nº publicación: US2025226465A1 10/07/2025
Applicant:
UNIVERSAL ELECTRONICS INC [US]
Universal Electronics Inc
Absstract of: US2025226465A1
A module for providing power to a battery-operated device having a body in which is formed a battery compartment and a cover having one or more first elements cooperable with one or more second elements provided to the body for releasably positioning the cover over the battery compartment. The module has an energy-generating surface, an energy storage device coupled to the energy-generating surface, and a storage device cover positionable over the energy-generating surface. The storage device cover has one or more third elements cooperable with the one or more second elements provided to the body for releasably positioning the module cover over the battery compartment when the energy storage device is positioned within the battery compartment in engagement with one or more electrical contacts positioned within the battery compartment.
BOPI
Electronic site
