Absstract of: US2024291060A1
A battery pack having a plurality of battery modules is provided. Each of the plurality of battery modules includes a thermally conductive frame having a plurality of apertures and a plurality of battery cells, wherein each of the plurality of battery cells is disposed in one of the plurality of apertures. Each of the plurality of battery modules also includes a heating element disposed on a top of the thermally conductive frame and a cooling plate disposed on a bottom of the thermally conductive frame. The thermally conductive frame includes a plurality of cooling ribbons disposed between at least two of the plurality of apertures, wherein each of the plurality of cooling ribbons extend from top of the thermally conductive frame to the bottom of the thermally conductive frame.
Absstract of: US2024291058A1
A cell module assembly according to the present disclosure includes a plurality of battery cells; a cell frame accommodating the plurality of battery cells; busbar plates disposed on one outer surface of the cell frame to electrically connect the plurality of battery cells; and a sensing unit disposed on the other outer surface of the cell frame and electrically connected to the busbar plates by wire bonding.
Absstract of: US2024290963A1
A niobium-containing oxide powder represented by General Formula Ti1-x/2Nb2O7-x (where X=0 to 2), wherein at least one metal element selected from the group consisting of Mo and Ce is localized on surfaces of niobium-containing oxide particles which constitute the niobium-containing oxide powder.
Absstract of: US2024290961A1
A negative electrode pre-dispersion, a negative electrode composition including the same, a negative electrode for a lithium secondary battery including the negative electrode composition, a lithium secondary battery including the negative electrode, and a method for preparing a negative electrode composition are disclosed. The negative electrode pre-dispersion includes a pre-dispersing material comprising a planar conductive material having a BET specific surface area ranging from 100.0 m2/g or more and a water-containing dispersing agent; and a dispersion medium, wherein a solid content of the pre-dispersing material is 10% to 30% based on the negative electrode pre-dispersion.
Absstract of: US2024290979A1
A negative electrode composite material slurry comprises a negative electrode active material including a Si-based active material, one or more auxiliary materials selected from the group consisting of polyacrylic acid, styrene-butadiene rubber, carboxymethylcellulose, and carbon nanotubes, and water. The negative electrode composite material slurry has a pH from 4.5 to 7.3.
Absstract of: US2024290964A1
A negative electrode active material having a β-LVO-type crystal structure, in which a part of the V element of the β-LVO-type crystal structure is substituted with one or more elements capable of having a tetracoordinate structure, and preferably, the one or more elements capable of having the tetracoordinate structure are one or more elements selected from Zn, Al, Ga, Si, Ge, P, and Ti.
Absstract of: US2024290967A1
Provided is a positive electrode for a nonaqueous electrolyte secondary battery of one embodiment, wherein a positive electrode active substance is constituted of single particles having no grain boundary therein. The single particles include first single particles having a particle diameter of at least 4 μm, and second single particles having a particle diameter smaller than that of the first single particles. In a positive electrode mixture layer, the second single particles are disposed around the first single particles. The second single particle, among the second single particles disposed adjacent to the first single particles, with the smallest particle diameter has a particle diameter that is no more than 1⁄5 of the particle diameter of the first single particle adjacent to said second single particle. The first single particles account for 3-30% relative to the total number of the particles in the positive electrode active substance.
Absstract of: US2024291081A1
Method and systems for determining a battery electric vehicle (BEV) protection plate has been damaged. A BEV protection plate includes a circuit. The circuit includes a plurality of conductive tabs. The BEV protection is separated from a battery housing by an opening. The conductive tabs extend from the circuit disposed on the BEV protection plate into the opening. A diagnostic device measures a voltage of the battery housing. A controller is in communication with the diagnostic device, determines a short circuit based on the measured voltage of the battery housing; and outputs to a display a notification that the BEV protection plate is compromised.
Absstract of: US2024291118A1
This application provides a negative electrode plate and a method for preparing same. In the method, a metal foil is connected to a foamed metal current collector by roll welding, so as to form the negative electrode plate. The metal foil forms a tab of the negative electrode plate, and the foamed metal current collector includes a foamed metal layer of a porosity of 60% to 99%, and optionally 80% to 85%. The method reduces or avoids flying metal chips and cold solder joints, and improves mechanical strength and electrical conductivity of the electrode plate. This application also provides a negative electrode plate prepared by the method, a secondary battery containing the negative electrode plate, and an electrical device.
Absstract of: US2024291086A1
A battery module includes a module housing, a gauge hole formed in the module housing, a plurality of battery cells in the module housing, a cell pressing plate accommodated in the module housing, and a swelling gauge provided to protrude from a surface of the cell pressing plate. The plurality of battery cells have a normal state and a swelling state. An end of the swelling gauge extends outside the module housing when the plurality of battery cells are in the normal state.
Absstract of: US2024291059A1
The present disclosure relates to a power supply device and a power consumption device. The present disclosure provides a power supply device, including: at least one power supply part, wherein each of the power supply parts is provided with at least one battery cell; and a temperature acquisition module, which includes a support frame and a temperature acquisition unit, wherein the support frame is configured to fix the temperature acquisition module relative to the power supply part, and the temperature acquisition unit is arranged on the support frame and the temperature acquisition unit is configured to be thermally connected to the power supply part to acquire information relative to temperature of the power supply part, wherein the support frame is integrally molded with the temperature acquisition unit.
Absstract of: US2024291055A1
A battery assembly includes an enclosure including a plurality of battery cells, and a sensor within the enclosure. The sensor is configured to measure a parameter within the enclosure, and generate a sense signal. The battery assembly further includes a processor within the enclosure, wherein the processor is configured to process the sense signal and generate information associated with the sense signal. A first communication link is configured to transmit, from the enclosure to a system that is external to the enclosure, a discrete signal indicative of whether the sense signal indicates a fault condition. A second communication link is configured to transmit, from the enclosure to the system, a digital signal including the information. Thus, transmitting the discrete signal over the first communication link and the information associated with the sense signal over the second communication link provides redundancy and improves reliability of the battery assembly.
Absstract of: US2024290960A1
A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with a positive electrode, a negative electrode, a separator that separates the positive electrode and the negative electrode from each other, and a nonaqueous electrolyte. With respect to this nonaqueous electrolyte secondary battery, the positive electrode comprises a positive electrode collector, a first positive electrode mixture layer that is formed on the surface of the positive electrode collector, and a second positive electrode mixture layer that is formed on the surface of the first positive electrode mixture layer; the first positive electrode mixture layer contains a first positive electrode active material; the second positive electrode mixture layer contains a second positive electrode active material; and the Ni content ratio in the second positive electrode active material is lower than the Ni content ratio in the first positive electrode active material.
Absstract of: US2024290958A1
Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided.
Absstract of: US2024291020A1
The present technology relates to a composite material comprising inorganic particles, a fluorinated amide compound, and optionally an electrolyte polymer, plasticizer and/or salt, as well as to the process for preparing the composite material. Also described are solid electrolytes and electrode materials comprising the present composite material and their use in electrochemical cells and accumulators comprising them.
Absstract of: US2024290990A1
A method for manufacturing a positive electrode current collector coated with an adhesion enhancement layer includes preparing an aqueous slurry comprising a first binder polymer comprising polyvinylidene fluoride-based polymer particles having a melting point of 50 to 150° C. and a first conductive material at a weight ratio of 0.5:1 to 8:1; and coating the aqueous slurry on at least one surface of a metal current collector and drying by thermal treatment at higher temperature than the melting point of the polyvinylidene fluoride-based polymer particles to form the adhesion enhancement layer.
Absstract of: US2024291019A1
A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.
Absstract of: US2024290980A1
The present invention pertains to vinylidene fluoride copolymers comprising recurring units derived from hydrophilic monomers and to their use as binder for electrodes in Li-ion batteries.
Absstract of: US2024291120A1
Disclosed are a secondary battery and an electrical device including the secondary battery to solve the problem of welding between the electrode pillar and the current collecting portion of the existing secondary battery. The secondary battery includes: a housing, an electrode assembly, an electrode pillar and a current collecting portion. The electrode assembly is disposed in the housing in a sealed manner; the electrode pillar penetrates through the housing in a sealed and insulating manner, and is disposed with a thinned region with a thickness of T1; the current collecting portion is disposed in the housing and electrically connected with the electrode of the electrode assembly; a welding portion with a thickness of T2 is disposed on the current collecting portion and T2 is greater than 0.3T1; the thinned region is in conductive contact with the welding portion and is fixed through welding.
Absstract of: US2024291116A1
Provided is a battery module capable of keeping a joint strength high at a joint between dissimilar metals of a busbar. The battery module 100 includes a plurality of battery cells each having cell terminals 1p and 1n, and a busbar 2A joining the terminals of the battery cells 1. The busbar 2A has a plurality of connection face portions 2c1 and 2c2 each connected to a corresponding one of the terminals 1p and 1n of the battery cells 1; a plurality of rising portions each rising from a corresponding one of the plurality of connection face portions 2c1 and 2c2; and a connection portion connecting the plurality of rising portions. The busbar includes a copper portion 2e including copper and an aluminum portion 2f including aluminum, and a joint between the copper portion 2e and the aluminum portion 2f are located on the connection face portion 2c1, 2c2.
Absstract of: US2024291076A1
A cooling structure includes: a gas combustion engine driven by gas generated by the vaporization of liquefied fuel; a superconducting motor generating a driving force for driving a wheel; a battery supplying electric power to the superconducting motor; a fuel supply path supplying the liquefied fuel, which is to become the gas, to the gas combustion engine, the fuel supply path supplying the liquefied fuel via the superconducting motor; a first coolant flow path through which a first coolant for cooling the battery flows; and a first heat exchanger that is provided downstream of the superconducting motor within the fuel supply path and exchanges heat between the liquid fuel in the fuel supply path and the first coolant in the first coolant flow path.
Absstract of: US2024291115A1
Embodiments of the present application disclose a fixing bracket for a flexible circuit board, a busbar component, a battery, and an electrical device. The fixing bracket for the flexible circuit board includes: a connecting portion for connecting the fixing bracket to a target component that needs to be fixed; and a fixing portion for limiting and fixing the flexible circuit board. The connecting portion is disposed between the target component and the fixing portion and the connecting portion is connected to the fixing portion. The technical solution of embodiments of the present application can inhibit warping or wearing of flexible circuit boards during transportation, thereby preventing abnormalities in battery sampling caused by warping or wearing of the flexible circuit boards.
Absstract of: US2024291054A1
A method of testing a battery of a portable electronic device, the method implemented by the portable electronic device or battery-testing apparatus thereof, the method comprising: applying a measurement signal to at least one terminal of the battery, wherein the measurement signal is a fluctuating or alternating electrical signal; and obtaining a measurement of a mechanical response of the battery to the measurement signal from a sensor.
Absstract of: US2024291014A1
A jelly roll includes an electrode assembly made by winding a stack of a first electrode, a separator, and a second electrode, and an insulation tape configured to cover at least a part of a lateral surface of the electrode assembly and at least a part of an end of the electrode assembly, in which the insulation tape has at least one notching pattern provided in a region that covers at least a part of the end of the electrode assembly. The jelly roll can be used in a secondary battery, a battery module, and a battery pack.
Nº publicación: US2024290957A1 29/08/2024
Applicant:
NOTHEASTERN UNIV [US]
Notheastern University
Absstract of: US2024290957A1
A MoS2@polyacrylonitrile-derived porous carbon fiber core-shell structure for use in all-solid-state lithium-sulfur batteries (ASSLSBs) is disclosed. The core-shell structure comprises a core comprising polyacrylonitrile-derived porous carbon fibers (PPCF) with surface layer pores; and a shell comprising a MoS2 nanosheet that is uniformly distributed on the surface of the core. Methods for making the core-shell structure are also disclosed, as well as methods of using the core-shell structure for ASSLSBs. The use of a MoS2@PPCF core-shell structure in an ASSLSB resulted in improved electrochemical performance with ultrahigh specific capacity, high cycling stability, and high-capacity retention.