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1255
resultados
Última actualización
10/02/2026 [07:21:00]
Resultados 850 a 875 de 1255
Resumen de: US20260029471A1
Systems and methods for automatic analysis of underlying electrochemical mechanisms of various electrochemistry systems are described. The automatic analysis can reduce manual analysis performed by humans to a minimum. Electrochemical mechanisms of electrochemical systems measured by cyclic voltammograms can be characterized, categorized and ranked. The deep learning-based processes can provide qualitative, semi-quantitative, and/or quantitative results to deconvolute complex electrochemical systems.
Resumen de: US20260029481A1
A system for reducing a rate of capacity loss of a rechargeable battery can include a switch and a controller. The controller can be configured to produce, at a frequency and during a normal operation of the rechargeable battery to provide electrical power to a power-consuming device, a sequence of pulses. A pulse, of the sequence of pulses, can have a duty cycle that defines: (1) a first portion of the pulse during which the switch is positioned to connect the power-consuming device to the rechargeable battery and (2) a second portion of the pulse during which the switch is positioned to connect the power-consuming device to a secondary electrical power source. For example, interrupting a discharge of the rechargeable battery (e.g., during a normal operation of the rechargeable battery to provide electrical power to the power-consuming device) can reduce a rate of degradation of the rechargeable battery.
Resumen de: US20260029228A1
The present invention relates to an apparatus for inspecting stacking of electrodes of a secondary battery, the apparatus including: a stack table on which a stack including a plurality of positive electrodes and negative electrodes and a separator arranged between the positive electrodes and the negative electrodes is placed; a fixing part configured to fix one surface of the stack and including at least one hole for exposing the stack; and an imaging unit configured to capture the stack exposed through the hole.
Resumen de: US20260029093A1
A gas protection system, a gas protection method, and an energy storage system are provided. The gas protection system includes: a gas transmission pipe in communication with a sealed cabinet, where the gas transmission pipe is configured to input and output a protective gas to and from the sealed cabinet; a first detection module disposed in the gas transmission pipe; and a gas supply module configured to acquire gas parameters of the protective gas in the gas transmission pipe from the first detection module and supply a gas to the sealed cabinet based on the gas parameters.
Resumen de: US20260031647A1
An adaptive charging thermal optimization system for an electrified vehicle includes a set of thermal management components each configured to thermally condition a high voltage battery system of the electrified vehicle and a control system configured to detect whether the electrified vehicle is plugged into electrified vehicle supply equipment (EVSE) and, in response to detecting that the electrified vehicle is plugged into the EVSE, determine a set of charging parameters and limits for the high voltage battery system and the EVSE, determine a type or mode of the EVSE, determine a temperature setpoint for the high voltage battery system based on the charging parameters and limits for the high voltage battery system and the EVSE and the type or mode of the EVSE, and control the set of thermal management components based on the determined temperature setpoint and a measured temperature of the high voltage battery system.
Resumen de: US20260031638A1
A portable battery charger includes a housing. The housing includes a battery receptacle configured to receive and connect to a battery. The charger also includes a heater surrounding the battery receptacle and a charging circuit provided in the housing to charge the battery. The charger further includes a temperature sensor disposed in the housing and an electronic processor in communication with the temperature sensor, the charging circuit, and the heater. The electronic processor is configured to determine, using the temperature sensor, a temperature of the battery, determine whether the temperature satisfies a low temperature threshold, in response to the temperature satisfying the low temperature threshold disable the charging circuit, and enable the heater to heat the battery.
Resumen de: US20260028241A1
A nickel manganese cobalt composite hydroxide, which is a precursor of a positive electrode active material, and which is composed of secondary particles to which primary particles containing a nickel, a manganese, and a cobalt are aggregated, or composed of the primary particles and the secondary particles, wherein a sodium content contained in the nickel manganese cobalt composite hydroxide is less than 0.0005% by mass. Also, a ratio of an average particle size of a lithium nickel manganese cobalt composite oxide divided by an average particle size of the nickel manganese cobalt composite hydroxide, which is a precursor, is 0.95 to 1.05, and further, when observing 100 or more particles of the lithium nickel manganese cobalt composite oxide selected randomly by a scanning electron microscope, a number that an aggregation of secondary particles is observed is 5% or less with respect to a total number of observed secondary particles.
Resumen de: US20260028245A1
Disclosed herein is a process for making a particulate (oxy)hydroxide of TM where TM refers to a combination of nickel and at least one metal selected from Co and Mn and where the process includes the steps of: (a) providing one or more aqueous solution(s) (α) containing water-soluble salts of Ni and of at least one transition metal selected from Co and Mn, and, optionally, at least one further metal selected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and an aqueous solution (β) containing an alkali metal hydroxide and, optionally, an aqueous solution (γ) containing a complexing agent, and(b) combining in a stirred tank reactor solution(s) (α) and solution (β) and, if applicable, solution (γ) in one or more sub-steps, at a pH value in the range of from 10.5 to 12.5 determined at 23° C., thereby creating solid particles of hydroxide, the solid particles being slurried,where the stirred tank reactor used in step (b) or in at least one of the sub-steps (b) is equipped with a solid-liquid separation device through which mother liquor containing in the range of from 2 mg/l to 20 g/l of slurried particles of hydroxide is withdrawn.
Resumen de: US20260028242A1
Disclosed herein is a process for making an (oxy)hydroxide of TM where TM refers to metals of which at least 97 mol-% are transition metals and where TM includes manganese and nickel, and where at least 50 mol-% of TM are manganese, the process including the steps of: (a) providing at least one aqueous solution (α) of water-soluble salts of such metals and an aqueous solution (β) including alkali metal hydroxide selected from the group consisting of NaOH and KOH,(b) combining solutions (α) and (β) at a pH value in the range of from 9.5 to 10.3, where such step (b) is carried out using at least one coaxial mixer including two coaxially orientated pipes through which an aqueous solution (β) and an aqueous solution of (α) are introduced into a stirred vessel, thereby precipitating an (oxy)hydroxide of TM, and(c) recovering and drying the (oxy)hydroxide of TM.
Resumen de: US20260028244A1
A positive electrode active material and a preparation method thereof, a positive electrode plate, a battery, and an electric apparatus are provided. The positive electrode active material includes: NaxMnaCubM1cM2dM3eO2+f−gRg, where M1 includes an element capable of forming a cation with a valence of +2 or less, M2 includes an element capable of forming a cation with a valence of +3, M3 includes an element capable of forming a cation with a valence of +4 or higher, R includes a Group VIIA element, 0.67≤x≤1.2, a+b+c+d+e=1, a>0, b>0, c≥0, d≥0, e≥0, −0.1≤f≤0.1, 0≤g≤0.05, andb2×(b+c)2×(b+d)a×(a+e)4≤0.04.(I)
Resumen de: US20260031649A1
A method including: monitoring a power supply from a line power source; monitoring a temperature of one or more of a battery and a super-capacitor, when power is available through the line power source: supplying power directly from the line power source to the supported system; and supplying power directly to the charger to charge the battery and the super-capacitor, and in the event of a detected line power outage, supplying power to the supported system from one or more of the battery and super-capacitor based at least on the detected temperature of the one or more of the battery and super-capacitor.
Resumen de: US20260031645A1
This application provides a battery and a charging method thereof, a battery management system, and an electric device, capable of improving charging performance of the battery. The battery includes at least one battery cell and a battery management system. A positive electrode active material of the battery cell includes LiMPO4, and M includes element Mn and element Fe. The battery management system is configured to: control the battery to perform a first constant current charging until a voltage of the battery reaches a first cutoff voltage; control the battery to perform a constant voltage charging; and control the battery to perform a second constant current charging until the voltage of the battery reaches a second cutoff voltage, where the second cutoff voltage is greater than the first cutoff voltage.
Resumen de: US20260031600A1
A cabinet assembly and an energy storage apparatus are provided. The cabinet assembly includes a body having a first chamber and a second chamber, a first wiring assembly fixed to an inner wall of the body and having a first wiring space, a second wiring assembly fixed to the inner wall of the body and having a second wiring space for guiding wiring of a communication cable, and a third wiring space located in the second chamber. The first wiring space has a first wiring hole located in the first chamber, and a fire-fighting cable is adapted to be electrically connected to a fire-fighting device through the first wiring hole. The first wiring space and the second wiring space are in communication with the third wiring space, and the fire-fighting cable and the communication cable are electrically connected to an electrical element.
Resumen de: US20260031633A1
A cell balancing current control device and method for a battery pack are capable of reflecting a resistance value depending on a length of a flat cable which connects each cell of a multi-series battery and a battery management system (BMS) (that is, cell to BMS connection) to control an on/off duty ratio of a switching module for applying a cell balancing current to be different for each individual cell, and a battery pack. Cell balancing current control is based on an on/off duty of a switching module calculated by reflecting the resistance value depending on the length of the flat cable.
Resumen de: US20260031636A1
A battery pack control method includes: detecting real-time load power of a multi-battery pack system; and when the real-time load power is less than a first power threshold, and at least two battery packs discharge in parallel, determining a target battery pack from the battery packs discharging in parallel, maintaining a discharge function of the target battery pack, and disabling a discharge function of another battery pack discharging in parallel other than the target battery pack.
Resumen de: US20260028243A1
The present invention relates to a metal composite hydroxide used as a precursor of a positive electrode active material for a lithium secondary battery, said metal composite hydroxide comprising at least one metal element selected from the group consisting of Ni, Co, and Mn, and satisfying all of the following requirements (1) to (4): (1) An average particle strength is 10 MPa or more and less than 45 MPa;(2) A molar ratio (Mn/Co) of manganese to cobalt is more than 1.0;(3) A BET specific surface area is less than 40 m2/g;(4) An average particle diameter D50 is 4 μm or less.
Resumen de: US20260028240A1
A lithium manganese iron phosphate cathode material, including a first lithium manganese iron phosphate particle and a second lithium manganese iron phosphate particle. A molar ratio of Mn to Fe in the first lithium manganese iron phosphate particle is greater than or equal to 1. A molar ratio of Mn to Fe in the second lithium manganese iron phosphate particle is smaller than or equal to the molar ratio of Mn to Fe in the first lithium manganese iron phosphate particle. A particle size of the first lithium manganese iron phosphate particle is smaller than or equal to a particle size of the second lithium manganese iron phosphate particle. A preparation method of the lithium manganese iron phosphate cathode material and an application thereof are provided.
Resumen de: US20260028234A1
A negative electrode active material, a rechargeable lithium battery including the same, and a method for preparing the same are provided. The negative electrode active material includes an aggregate in which at least two composites are aggregated, the composites each including silicon (Si) and carbon (C), and a coating layer around (e.g., surrounding) the aggregate, wherein the composites each include a core containing crystalline silicon, a first shell containing amorphous silicon on the core, and a second shell containing a first amorphous carbon on the first shell, and wherein the coating layer contains a second amorphous carbon.
Resumen de: US20260028232A1
Provided are a silicon-carbon composite material and a preparation method therefor, a secondary battery, and an electric device. The silicon-carbon composite material comprises silicon-carbon secondary particles; the silicon-carbon secondary particles comprise silicon-carbon primary particles and one-dimensional conductive agents; the one-dimensional conductive agents are distributed between the silicon-carbon primary particles.
Resumen de: US20260028233A1
A porous carbon material having, based on a pore volume of the porous carbon material, a volume proportion of ultramicropores with a pore diameter less than or equal to 0.7 nm is denoted as P0%, and a volume proportion of micropores with a pore diameter less than or equal to 2 nm is denoted as P1%, where 2≤P0≤28 and 92≤P1≤100.
Resumen de: US20260031635A1
The present disclosure relates to a redundant power device, and an object of the present disclosure is to provide a redundant power topology that can ensure normal operation of a battery management system (BMS) by securing normal operating power of the BMS even when a disconnection occurs in a cable connecting a battery cell and the BMS or an abnormality or failure occurs in an uppermost battery cell. The present disclosure provides a configuration of switching a power supply cable to a processor so that power is supplied to the processor through a sub-cable when an abnormality occurs in a main cable.
Resumen de: US20260031639A1
A battery pack includes a housing having a handle, rechargeable battery cells disposed within the housing, and a mating feature protruding away from the housing. The mating feature is configured to selectively connect the battery assembly with the receptacle of the charging rack and includes multiple ports electrically connected to the battery cells.
Resumen de: US20260031658A1
An RF signal (RF0) is input to a rectifier circuit and rectified to obtain a DC signal (DC1) converted by an output part into a DC signal DC2 suitable for charging a battery, and output to the battery 100. In the power circuit, the intensity of RF0 and the voltage and current of DC1 are recognized, and DC2 output from the output part is controlled accordingly. A DC input monitor circuit monitors the values of the voltage and current of DC1. The output part and the battery can be considered as a virtual load resistance from the perspective of the side of the preceding rectifier circuit. A power conversion efficiency from RF0 to DC2 depends on RL. An output adjustment part compares the recognized RL with the value of RL at which the conversion efficiency η peaks and controls increase/decrease of the current of DC2 accordingly.
Resumen de: US20260031632A1
A battery pack charger includes a housing, a first and a second battery pack receptacle for receiving a battery pack, a first and a second power supply, and a controller. The controller is electrically coupled to the first and the second power supplies to enable the controller to configure the first and the second power supplies to provide an amount of charging current. The battery pack charger includes a set of charging circuits electrically coupled to the first and second power supplies to receive the amount of charging current from the first and the second power supplies. The controller configured to direct all of or less than all of the amount of charging current from the first power supply to the first battery pack receptacle and all of or less than all of the amount of charging current from the second power supply to the first battery pack receptacle.
Nº publicación: US20260031631A1 29/01/2026
Solicitante:
HUAWEI TECH CO LTD [CN]
HUAWEI TECHNOLOGIES CO., LTD
Resumen de: US20260031631A1
This disclosure introduces a method and a power consumption device which is configured to: connect to a power supply device through a cable, and control the power supply device to supply power to the power consumption device. Both the power consumption device and the power supply device support a first protocol and a second protocol. The method includes: controlling the power supply device to charge the power consumption device according to the first protocol, when it is determined that the power supply device supports the second protocol, controlling the power supply device to charge the power consumption device based on the charging parameter, and after controlling the power supply device to charge the power consumption device based on the charging parameter, controlling, based on obtained through-current capability information of the cable, the power supply device to charge the power consumption device according to the second protocol.
BOPI
Sede Electrónica
