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1323
results.
Updated on
25/04/2025 [07:36:00]
Results 550 to 575 of 1323
Absstract of: US2025123337A1
According to an aspect of the present invention, there is provided a battery management apparatus receives a plurality of resting voltages collected in a resting period after charging or discharging is completed from a plurality of battery cells, and is configured to calculate a plurality of voltage deviations based on a difference between a representative value of the plurality of resting voltages and each resting voltage, calculate a plurality of rates of change over time of the plurality of voltage deviations, and diagnose a state of at least one of the plurality of battery cells.
Absstract of: US2025123335A1
A charging system includes a charger for a storage battery including a lithium-ion battery, and a battery-side device that monitors a battery state including a lithium precipitation amount in the lithium-ion battery. The charger includes an information acquisition unit that acquires battery information including the battery state from the battery-side device, a charging determination unit that determines whether charging of the storage battery is possible based on the battery information, and a charging control unit that charges the storage battery based on a determination result of the charging determination unit.
Absstract of: US2025123336A1
A battery monitoring system includes battery measuring devices and a battery monitoring device. Each of the battery measuring devices detects voltage information on a corresponding battery. The battery monitoring device is configured to: acquire the voltage information from each of the battery measuring devices by using wireless communication; and acquire current information on current flowing through the corresponding battery from an electric-current sensor. The battery monitoring device includes a control unit and a wireless communication unit. The wireless communication unit executes wireless communication with the battery measuring devices with a predetermined period. The control unit is configured to: cause the wireless communication unit to output a voltage measuring instruction; and based on a timing at which the wireless communication unit transmits the voltage measuring instruction to the battery measuring device, acquire the current information during a time interval in which the battery measuring device acquires voltage information.
Absstract of: US2025123333A1
A method can include receiving battery sensor measurements, determining a state of the battery (e.g., SoH, SoC, SoE, SoP, etc. or information correlated therewith such as internal resistance, open circuit voltage, etc.), estimating an aging profile or degradation of the battery for one or more operating conditions, and determining operating conditions for the battery based on the estimated degradation.
Absstract of: US2025125409A1
A solid electrolyte for solid-state batteries comprises a phosphorous-free solid electrolyte having a cubic argyrodite structure. The solid electrolyte has a composition according to the molecular formula: Li6+xMxSb1−yS5−zR, where x=0 to 0.7; y=0 to 0.7 and z=0 to 0.7, wherein the (semi-) metal comprises M=Si, Sn, W and the halogen comprises R=I1, Cl1, Brz, Br1 and further wherein, in a case where R=I1, M=W and x>0. Furthermore, a production method is described.
Absstract of: US2025125436A1
A control system includes a temperature sensor for detecting a vehicle battery temperature, a heater for heating a battery, a battery control unit for detecting a battery charge state and controlling a heater operating state, and a control unit for controlling a drive device that operates with power supplied from the battery, and gives an instruction related to the heater operating state to the battery control unit. When the battery temperature is lower than a threshold and the battery charge state is higher than a predetermined level, the control unit causes the heater to generate heat to the battery control unit. When the battery temperature is lower than the temperature threshold and the charge state of the battery is equal to or lower than the charge level, the control unit stops the heater to the battery control unit and limits power consumption of the drive device.
Absstract of: US2025125434A1
A method for heating a battery pack of an electrified powertrain system having an electric motor includes determining a temperature of the battery pack. Responsive to the battery temperature being less than a predetermined threshold temperature, the method includes executing a self-heating mode of the battery pack. This includes injecting a high-frequency direct-axis alternating current voltage waveform that minimizes output torque and prevents rotation of a rotor of the electric motor. An AC current waveform is applied to the battery pack as a result of the voltage injection. A controller includes a temperature sensor configured for determining a temperature of the battery pack and a processor configured to perform the method. A motor vehicle includes the controller, an electrified powertrain system having the battery pack and an electric motor, and road wheels connected to and powered by electric motor.
Absstract of: US2025125439A1
In a heat exchange plate, a refrigerant layer includes first and second refrigerant flow paths and a third refrigerant flow path disposed between the first and second refrigerant flow paths. A coolant layer includes first and second coolant flow paths, and first and second connection coolant flow paths. The first connection coolant flow path connects a part of the first coolant flow path closer to the second refrigerant flow path than the third refrigerant flow path and a part of the second coolant flow path closer to the third refrigerant flow path than the first refrigerant flow path. The second connection coolant flow path connects a part of the first coolant flow path closer to the third refrigerant flow path than the second refrigerant flow path and a part of the second coolant flow path closer to the first refrigerant flow path than the third refrigerant flow path.
Absstract of: US2025125440A1
A prismatic cell cooling system includes a first prismatic cell having a first face, a second face angularly oriented to the first face and a third face oriented parallel to the first face and angularly oriented to the second face. A cooling jacket provides multiple coolant flow passages. A first cooling segment of the cooling jacket contacts one of the first face or the third face of the first prismatic cell. A second cooling segment of the cooling jacket directly contacts the second face of the first prismatic cell. The second cooling segment is contiguously and fluidly connected to the first cooling segment to promote simultaneous cooling of one of the first face or the third face and the second face of the first prismatic cell by flow of a coolant through the coolant flow passages.
Absstract of: US2025125374A1
The present application relates to a sodium-ion battery and an electrical apparatus including the same. The sodium-ion battery includes a positive electrode sheet, a separator, and a negative electrode current collector, wherein the separator is disposed between the positive electrode sheet and the negative electrode current collector, a surface of the negative electrode current collector is provided with a protective layer capable of allowing sodium-ions to pass freely, a material of the protective layer mainly includes a polymer material, there is an accommodation area between the protective layer and the negative electrode current collector, and the accommodation area has a sodium metal layer formed on the surface of the negative electrode current collector. The sodium-ion battery can effectively improve the inhibition of sodium dendrites, reduce side reactions between sodium metal and an electrolyte solution, and improve the cycle performance of the sodium-ion battery.
Absstract of: US2025125372A1
Disclosed are an all-solid-state battery and a method of manufacturing the same, in which the all-solid-state battery includes a coating layer configured such that the surface of a porous network formed by intertwining fibrous carbon is coated with an inorganic electrolyte, thus improving charge/discharge efficiency and lifespan characteristics thereof.
Absstract of: US2025125401A1
A battery pack for an electric road vehicle includes a first electrochemical cell comprising a cathode, an anode and a solid electrolyte electrically connected thereto. The first cell has a first thickness along a direction increasing following the activation of the first cell. A first compensation element cooperates with the first cell along the direction and is subjected to a compression force, which is variable along the direction between a minimum value and a maximum value. The compensation element has a second thickness along the direction, which is variable between a maximum value and a minimum value. The first compensation element plastically deforms itself when it is subjected to a predetermined value of the compression force, which is greater than or equal the minimum value and is smaller than the maximum value, so as to plastically reduce the second thickness for values of the force exceeding the predetermined value.
Absstract of: US2025125377A1
A self-supported porous 3D flexible host anode for lithium metal secondary batteries having a primary coating >5 atomic wt % and in addition to <5 atomic wt % of at least two additional lithiophilic elements, leading to synergistic plating and stripping effect of the alkali ions, wherein all the coating elements have the capability of forming intermetallic alloys with lithium and/or between themselves within the potential window range of 1.5 V and −0.5 V Vs Li/Li+, having a porosity of at least 70%, and a thickness between 10 μm and 100 μm, comprising a non-woven, woven or ordered arrangement of constituent fibres with a diameter ranging between 200 nm and 40 μm.
Absstract of: US2025125415A1
The present disclosure relates to a solid electrolyte contains a borate containing Li, an element R selected from a group including Yb, Er, Ho, Tm, and La, an element A selected from a group including Al, Fe, Mn, and Ga, and an element M selected from a group including Zr and Ce.
Absstract of: AU2023406546A1
The present invention relates to compositions with low electrical conductivity which comprise a hydroxylamine-containing molecule in combination with a yellow metal corrosion inhibitor such as a triazole, wherein the weight ratio of the yellow metal corrosion inhibitor to the hydroxylamine- containing molecule is from 1 :20 to 20:1; and wherein the composition has an electrical conductivity at 25 °C of less than 200 μS/cm. These compositions can effectively provide ferrous metal corrosion inhibition in heat-transfer fluids at low electrical conductivity and maintain a low electrical conductivity which does not alter substantially with aging. They are thus particularly useful as heat-transfer fluids, for example in fuel cells or battery electric vehicles. The invention further relates to methods for the preparation of said compositions, and to uses employing said compositions.
Absstract of: AU2023352888A1
The present disclosure relates to an electrolyte product (1), formed as a solid or semi-solid layer, comprising a polymer-based matrix, having dispersed therein an amount of an electrolyte salt composition (4) and an amount of an additive salt composition (5). The disclosure further relates to a method of manufacturing a battery cell product, a battery cell product comprising the electrolyte product, and a battery product comprising a plurality of battery cell products.
Absstract of: AU2023334976A1
Provided are a thermal runaway flue gas treatment system of a battery pack and a battery pack, which mainly solves the problem of an existing battery thermal runaway flue gas treatment method having relatively high costs. The thermal runaway flue gas treatment system of the battery pack comprises a thermal runaway flue gas treatment assembly, wherein the thermal runaway flue gas treatment assembly comprises a pressure relief pipe and a smoke exhaust pipe; one end of the pressure relief pipe is in communication with an explosion venting opening of a battery, and the other end of the pressure relief pipe is connected to the smoke exhaust pipe; and the end of the smoke exhaust pipe, which is arranged in a box body, is connected to the pressure relief pipe, the other end of the smoke exhaust pipe passes through the box body and is arranged at a top end of the box body, and the height of the smoke exhaust pipe arranged outside the box body is H. Each component of the system has a simple structure, and the system cost is very low. Moreover, the smoke exhaust pipe passes through the box body and is arranged at the top end of the box body, so that a safe distance is formed between thermal runaway flue gas of the battery and the battery, and thus the discharged thermal runaway flue gas does not affect the battery.
Absstract of: AU2023335279A1
A battery shell, a battery cell and a high-capacity battery, which mainly solve the problem of poor performances of existing large-capacity batteries. The battery shell is provided with a first through hole, and is further provided with a pipeline covering the first through hole and extending in the thickness direction of the battery shell, a second through hole being formed in the pipe body of the pipeline, and the first through hole communicating with the second through hole. An electrolyte sharing channel of the high-capacity battery is formed by means of the pipeline, such that the battery cells inside the large-capacity battery can have a common electrolyte environment, thereby improving the performances of the large-capacity batteries.
Absstract of: US2025123331A1
Provided are an electrochemical model-based method and system for estimating a state of a solid-state lithium battery, where the method includes: a model construction step, for constructing an electrochemical model of a power solid-state lithium battery; and a code generation step, for converting the electrochemical model after simulated into executable code and importing the executable code into a battery management system to estimate the state of the power solid-state lithium battery.
Absstract of: US2025123055A1
The present invention relates to an electrode drying apparatus and an electrode drying method, and the electrode drying apparatus includes: an oven configured to provide a space in which the electrode is dried and to include a hot air nozzle or an infrared heater; a color coordinate measuring unit configured to be positioned at an outlet of the oven and measure a color coordinate value of an electrode active material layer with respect to the dried electrode; and a controller configured to analyze a drying result of the electrode from the color coordinate value, determine whether the electrode is defective in drying, and control a drying condition of the electrode.
Absstract of: US2025123062A1
A heat exchanger includes a fluid flow passage with a wavy fin turbulizer. The turbulizer includes sidewalls extending lengthwise along a fluid flow direction between its first and second ends, and the sidewalls are spaced apart across the width of the turbulizer. Each flow channel of the turbulizer is defined between two adjacent sidewalls. Each sidewall has a smoothly and continuously curved profile with repeating wave forms being defined along the length of the turbulizer. The continuously curved profile of the sidewalls is defined by a non-circular shape, such as elliptical, sinusoidal, parabolic and hyperbolic shapes. The radius of curvature changes constantly and reaches a maximum at or near the inflection point between adjacent crests and troughs of the profile, to provide improved particle pass-through, lower pressure drop, and enhanced plateability of internal surfaces.
Absstract of: US2025123219A1
A battery defect detection apparatus according to an embodiment disclosed herein includes: a communication module; a processor; and a memory configured to store a first artificial intelligence model, a second artificial intelligence model, and instructions, in which the processor is configured to execute the instructions by the battery defect detection apparatus; to perform operations including: obtaining an image of a subject product by using the communication module, inputting the image of the subject product to the first artificial intelligence model to classify the subject product, and inputting the image of the subject product to the second artificial intelligence model to determine whether the image of the subject product corresponds to first data for classifying the subject product as normal among learning data of the first artificial intelligence model, when the subject product is classified as normal.
Absstract of: US2025123236A1
An electrochemical cell includes at least two first electrodes, a separator layer, a common second electrode, an ionically conductive electrolyte, a base, and a lid, wherein the common second electrode is embedded in the base and the at least two first electrodes are embedded in the lid, the separator layer is ionically conductive and separates the at least two first electrodes from the common second electrode, the ionically conductive electrolyte creates an ionic pathway between the at least two working electrodes and the reference electrode, the base and lid are sealed against each other with an O-ring, each first electrode is sealed against the lid by an O-ring, at least one first electrode is electrically independent from all other first electrodes, and the lid has at least one hole, wherein the at least one hole can have at least one first electrode that is part of at least one cell.
Absstract of: US2025125423A1
A method for manufacturing a secondary battery including an electrode laminate obtained by laminating a positive electrode layer and a negative electrode layer, and an exterior body accommodating the electrode laminate, includes: forming or storing the positive electrode layer; forming or storing the negative electrode layer; and laminating the positive electrode layer and the negative electrode layer so that the positive electrode layer and the negative electrode layer are accommodated in the exterior body, and based on a dew point required in each of: the forming or storing of the positive electrode layer; the forming or storing of the negative electrode layer; and the laminating, a dehumidification gas delivered from a dehumidifier is circulated in an order from one, in which a lowest dew point is required, of: the forming or storing of the positive electrode layer; the forming or storing of the negative electrode layer; and the laminating.
Nº publicación: US2025125424A1 17/04/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: US2025125424A1
A method for manufacturing a lithium secondary battery includes preparing a battery cell, charging and discharging the battery cell under pressurization to activate the battery, and then charging is performed in a constant voltage mode. The battery cell includes a positive electrode, a negative electrode and an electrolyte, with the positive electrode containing lithium-rich manganese-based oxide in which the content of manganese in all metals excluding lithium is greater than 50 mol %, and the ratio of the number of moles of lithium to the number of moles of all metals excluding lithium (Li/Me) is greater than 1. The charging and discharging the battery cell under pressurization activates the battery. In the activating, the charging is performed in constant current mode until the charge cut-off voltage, and then the charging is performed in a constant voltage mode, and the charge cut-off voltage is greater than 4.35V.
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