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1900
resultados
Última actualización
05/10/2025 [07:18:00]
Resultados 325 a 350 de 1900
Resumen de: US2025309373A1
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms, and methods of producing and operating the same. In some aspects, an electrochemical cell can include an anode and a cathode material disposed on a cathode current collector, the cathode material and the cathode current collector forming a cathode. The electrochemical cell further includes a first separator disposed on the anode, a second separator disposed on the cathode, and an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material, the interlayer including a source of lithium ions, the lithium ions configured to migrate toward the anode upon a voltage difference between the interlayer and the anode exceeding a threshold value. In some embodiments, the anode can include an anode material disposed on an anode current collector. In some embodiments, the anode material can include graphite, silicon, and/or hard carbon.
Resumen de: US2025309300A1
A hydrogen storage assembly includes an enclosure substantially encompassing an electrolyzer, a hydrogen storage system, a hydrogen fuel cell, an electrochemical energy storage module, a power conversion system, and a control system. The electrolyzer is configured to separate, via electrolysis, water into hydrogen gas that is stored in the hydrogen storage system; the hydrogen fuel cell is configured to convert the stored hydrogen gas into electrical energy and water. The electrochemical energy storage module is configured to function as an energy buffer; the power conversion system is configured to convert the produced electrical energy to a desired form. The control system is configured to control the storage and distribution of the stored hydrogen and electrical energy in an optimized manner to achieve predefined financial and energy-use objectives.
Resumen de: US2025309372A1
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms, and methods of producing and operating the same. In some aspects, an electrochemical cell can include an anode and a cathode material disposed on a cathode current collector, the cathode material and the cathode current collector forming a cathode. The electrochemical cell further includes a first separator disposed on the anode, a second separator disposed on the cathode, and an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material, the interlayer including a source of lithium ions, the lithium ions configured to migrate toward the anode upon a voltage difference between the interlayer and the anode exceeding a threshold value. In some embodiments, the anode can include an anode material disposed on an anode current collector. In some embodiments, the anode material can include graphite, silicon, and/or hard carbon.
Resumen de: US2025309371A1
A problem to be solved by the present invention is to suppress concentration of current at a boundary between a positive electrode active material layer and an insulating member in a positive electrode of a battery, and suppress localized deposition of lithium on a negative electrode side containing metallic lithium or a lithium alloy. Provided is an electrode laminate in which a solid electrolyte layer has a low ion conductivity region in a region extending to a distance in one direction in a direction perpendicular to a thickness direction of the solid electrolyte layer and in a region extending to a distance in the other direction from a boundary line between a positive electrode active material layer and an insulating member, the positive electrode active material layer has an inclined portion that is inclined so that a width thereof reduces in a direction away from a positive electrode current collector.
Resumen de: US2025309383A1
Disclosed in the present disclosure is a method of formation and capacity grading for lithium-ion batteries, including the following steps: Formation: charging the SOC of the lithium-ion battery to be greater than or equal to 100%, wherein a charging process comprises at least a first stage, a second stage, a third stage, a fourth stage, and a fifth stage; and applying pressure to two opposite surfaces of the lithium-ion battery at each stage, wherein the pressure applied at the first stage is 0.1-0.3 Mpa, the pressure applied at the second stage is 0.3-0.5 Mpa, the pressure applied at the third stage is 0.8-1.2 Mpa, the pressure applied at the fourth stage is 0.3-0.5 Mpa, and the pressure applied at the fifth stage is 0.8-1.2 Mpa. Capacity Grading: fixing the lithium-ion battery after formation; applying pressure to 50-100 kg on the two opposite surfaces of the lithium-ion battery; and performing a capacity grading cycle.
Resumen de: US2025309381A1
The disclosure provides a gas detection unit that can detect hydrogen sulfide-containing gas with high precision, a battery pack comprising the detection unit, a gas detection system, a battery system comprising the gas detection system, and a gas detection method. The gas detection unit 10 of the disclosure comprises a hydrogen sulfide adsorbent 11, a heating section 12 that heats the hydrogen sulfide adsorbent, and a gas detection section 13 that detects the hydrogen sulfide and/or sulfur-containing gas released from the hydrogen sulfide adsorbent. The battery pack 1 of the disclosure comprises a sulfide-based battery 20, a gas detection unit 10 of the disclosure, and an outer container 30 that houses the sulfide-based battery 20 and gas detection unit 10.
Resumen de: US2025309382A1
A control method for controlling a power storage device including a lithium metal battery includes performing control to charge the lithium metal battery at a rate of 0.2 C or less and to discharge the lithium metal battery at a rate of 1.0 C or more and 2.0 C or less.
Resumen de: US2025309377A1
A battery system according to one embodiment of the present invention includes: a battery module including a cell stack formed by stacking a plurality of battery cells, and a pair of end plates arranged at both ends of the cell stack in the stacking direction, in which a fluid cushion is arranged either between the battery cells, or between the battery cells and the end plates, or both; a pressure acquisition unit; and a battery cell control unit. The cell thickness of the battery cells increases as the state of charge increases, and decreases as the state of charge decreases. The pressure acquisition unit acquires the internal pressure of the fluid cushion. The battery cell control unit controls at least one of the state of charge and temperature of the battery cells, based on the internal pressure of the fluid cushion.
Resumen de: US2025309374A1
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms, and methods of producing and operating the same. In some aspects, an electrochemical cell can include an anode and a cathode material disposed on a cathode current collector, the cathode material and the cathode current collector forming a cathode. The electrochemical cell further includes a first separator disposed on the anode, a second separator disposed on the cathode, and an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material, the interlayer including a source of lithium ions, the lithium ions configured to migrate toward the anode upon a voltage difference between the interlayer and the anode exceeding a threshold value. In some embodiments, the anode can include an anode material disposed on an anode current collector. In some embodiments, the anode material can include graphite, silicon, and/or hard carbon.
Resumen de: US2025306639A1
A sturdy electronic device is provided. A reliable electronic device is provided. A novel electronic device is provided. An electronic device includes a first board, a second board, a display portion having flexibility, and a power storage device having flexibility. The first board and the second board face each other. The display portion and the power storage device are provided between the first board and the second board. The display portion includes a first surface facing the power storage device. The first surface includes a first region not fixed to the power storage device. The first region overlaps with a display region of the display portion.
Resumen de: US2025306119A1
A computer-implemented method for Li-plating detection of a cell of a power battery. The method includes: obtaining a plurality of AC impedance values for the cell measured at a plurality of States of Charge (SOCs), in which the plurality of AC impedance values are measured in a non-driving state of a vehicle; fitting the AC impedance values as a function of SOC based on the plurality of AC impedance values; and calculating a goodness of fit for the function, and calculating a Li-plating score for the cell based on the goodness of fit, in which the Li-plating score is used to indicate a degree to which Li-plating occurs in the cell.
Resumen de: US2025306118A1
The present invention relates to a control device for a battery for generating a current for an electrochemical impedance spectroscopy. The device is configured to activate two different circuits of the battery via a common energy buffer, so that electrical energy is alternately exchanged between at least two parts of the battery via the energy buffer. Further, the invention relates to a system comprising the control device and the battery. Furthermore, the invention relates to a method for the control device.
Resumen de: US2025306116A1
Methods and systems for determining a status of an electrochemical energy storage device is provided. An impedance profile of an electrochemical energy storage device is determined using an Electrochemical Impedance Spectroscopy (EIS) device. The determined impedance profile is compared with a predetermined impedance profile. A status of the electrochemical energy storage device is determined based on the comparison.
Resumen de: US2025306114A1
A remaining capacity calculation device calculates a remaining capacity of a cell when the cell is charged/discharged. The device includes a first-region calculation unit calculating, at detection timing of an open circuit voltage, a reference remaining capacity of the cell based on a correlation between the open circuit voltage and the remaining capacity, and calculating, as a first-capacity region, a region including the reference remaining capacity; a second-region calculation unit calculating a second-capacity region by, to maximum and minimum remaining capacities in a past capacity region calculated at detection timing before present time, adding change of capacity, which is change of a current capacity due to charge/discharge from time at which the past capacity region was calculated; and a third-region calculation unit calculating, at the detection timing, a region including an overlapped region between the first and second capacity regions, as a third-capacity region including an actual remaining capacity.
Resumen de: US2025306109A1
Provided is determination device including a processor. The processor is configured to: acquire a relaxation curve of voltage of a lithium metal battery having a negative electrode containing lithium; and determine a recommended-suppression time of recommending suppression of charging and discharging of the lithium metal battery based on a rate of change of voltage in a short time constant range corresponding to a range of a short time constant in the relaxation curve.
Resumen de: US2025309402A1
A battery includes a first cell stack and a second cell stack arranged side by side, and a first cooling pipe and a second cooling pipe provided below the first and second cell stacks, respectively, and configured to cool the first and second cell stacks, respectively. The first and second cooling pipes extend from first ends of the first and second cell stacks to second ends thereof, respectively, and are connected to each other at the second ends. An inlet port and an outlet port for a refrigerant flowing through the first and second cooling pipes are both provided at the first ends, and the refrigerant flowing in from the inlet port first passes through the first cooling pipe from the first end, then passes through the second cooling pipe from the second end, and flows out from the outlet port.
Resumen de: US2025309367A1
A separable secondary battery stack includes a positive electrode module, a negative electrode module, and an electrolyte module. Every two of the positive electrode module, the negative electrode module, and the electrolyte module are mutually connected by means of a conveying channel in a loop; and the conveying channel is used for conveying an electrolyte.
Resumen de: US2025309403A1
A tab cooling structure cools a tab of one of battery cells. The tab cooling structure includes first and second coolers, first and second supply pipes, and first and second discharge pipes. The first cooler is positioned further toward one side in the X direction than the tab to be cooled. The second cooler is positioned further toward an opposite side in the X direction than the tab to be cooled. A refrigerant is supplied to the first cooler through the first supply pipe. The refrigerant is supplied to the second cooler through the second supply pipe. The refrigerant is discharged from the first cooler through the first discharge pipe. The refrigerant is discharged from the second cooler through the second discharge pipe. The first cooler and the second cooler sandwich the tab to be cooled therebetween in the X direction.
Resumen de: US2025309401A1
A gas cooler for a battery electric vehicle, the gas cooler including a heat exchanger having a connecting portion and a heat exchange portion, the connecting portion including a coolant inlet to allow a coolant to enter the heat exchanger, and a coolant outlet to allow the coolant to exit the heat exchanger, wherein the gas cooler further includes a bypass line configured to redirect a portion of the coolant from the coolant inlet to the coolant outlet, thereby bypassing the heat exchange portion of the heat exchanger.
Resumen de: US2025309368A1
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms, and methods of producing and operating the same. In some aspects, an electrochemical cell can include an anode and a cathode material disposed on a cathode current collector, the cathode material and the cathode current collector forming a cathode. The electrochemical cell further includes a first separator disposed on the anode, a second separator disposed on the cathode, and an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material, the interlayer including a source of lithium ions, the lithium ions configured to migrate toward the anode upon a voltage difference between the interlayer and the anode exceeding a threshold value. In some embodiments, the anode can include an anode material disposed on an anode current collector. In some embodiments, the anode material can include graphite, silicon, and/or hard carbon.
Resumen de: US2025309376A1
Provided are a signal acquisition assembly of a cell and a battery pack. The signal acquisition assembly includes a support, a circuit board, multiple pin-type electrical connectors, and multiple signal acquisition lines. The support includes a first side surface and a second side surface opposite to each other in a first direction. The circuit board is provided with multiple plug-in structures. A pin-type electrical connector has a first connection portion and a pin-type plug-in portion. Pin-type plug-in portions of the pin-type electrical connectors are plugged in the plug-in structures in one-to-one correspondence. The pin-type plug-in portion is electrically connected to a battery management circuit carried by the circuit board. Second connection portions of the signal acquisition lines are correspondingly connected to first connection portions of the multiple pin-type electrical connectors. The acquisition portion of the signal acquisition line is configured to acquire the signal of the cell.
Resumen de: US2025309342A1
An all-solid-state battery with less pressure variations has a plurality of electrode laminates each including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer; and at least one elastic sheet arranged between the electrode laminates, wherein some of the electrode laminates are in direct contact with adjacent one of the electrode laminates, and the at least one elastic sheet has a Young's modulus of 30 MPa or less.
Resumen de: US2025309341A1
Provided is a solid-state battery including, in an order, a positive electrode current collector, a positive electrode material layer, a prescribed solid electrolyte layer, a negative electrode side solid electrolyte layer, and a negative electrode, and further including a positive electrode tab that protrudes from the positive electrode current collector, and a negative electrode tab that protrudes from the negative electrode. A positive electrode frame, as an insulator, is provided closer to the negative electrode than the positive electrode current collector. Below, an area inside of outer edges of the positive electrode frame is defined as “sF”, an area of the prescribed solid electrolyte layer is defined as “sEc”, an area of the negative electrode side solid electrolyte layer is defined as “sEn”, and an area of the negative electrode is defined as “sN”. The solid-state battery satisfies a relationship “sEc≥sF>sN≥sEn”.
Resumen de: US2025309331A1
A method of manufacturing an all-solid-state battery is a method of manufacturing an all-solid-state battery including an electrode laminate and an exterior film configured to encase the electrode laminate, the method of manufacturing an all-solid-state battery including a process of encasing the electrode laminate with the exterior film, a process of sandwiching a region in the exterior film which is facing an outermost surface of the electrode laminate in a laminating direction and which is located at an inside edge portion of the outermost surface with holding members, and a process of sealing the exterior film in a state in which the exterior film is sandwiched between the holding members.
Nº publicación: US2025309330A1 02/10/2025
Solicitante:
HONDA MOTOR CO LTD [JP]
HONDA MOTOR CO., LTD
Resumen de: US2025309330A1
A battery system according to an aspect of the present invention includes: a cell stack in which a plurality of battery cells are stacked; a pair of end plates disposed at opposite ends of the cell stack in a stacking direction, respectively; at least one elastic container having an interior filled with a gas, the at least one elastic container being disposed between the battery cells and/or between the set of the plurality of battery cell and each of the end plates; a pipe having a compressor and a relief valve; a sub-pipe connecting the pipe to the at least one elastic container; and a controller.
BOPI
Sede Electrónica
