Battery Cabinet and Energy Storage Container Including the Battery Cabinet

    公开(公告)号:US20240396148A1

    公开(公告)日:2024-11-28

    申请号:US18672893

    申请日:2024-05-23

    Abstract: The present disclosure provides a battery cabinet of a battery box and an energy storage container including the battery cabinet. The battery cabinet comprises a battery rack, the battery rack comprises a mounting bracket and a number of mounting zones located within the mounting bracket, each mounting zone is provided with a cluster rack on both sides; the battery box is provided with mounting guide parts on both sides of its width direction respectively, two mounting guide parts are configured to be slidably mounted on the bottom wall of two cluster racks along the mounting direction, the cluster rack is further provided with a first sloping surface, an acute angle is arranged between the first sloping surface and the bottom wall, and an opening direction of the acute angle towards an entry direction of the battery box, the mounting guide part is provided with a first inclined surface for touching and fitting against the first sloping surface, a locking member is also provided for pressing the first inclined surface tightly against the first sloping surface along the mounting direction.

    Secondary Battery and Welding Method Thereof

    公开(公告)号:US20230223662A1

    公开(公告)日:2023-07-13

    申请号:US18095388

    申请日:2023-01-10

    CPC classification number: H01M50/536 H01M50/538

    Abstract: The present disclosure proposes a secondary battery and welding method thereof. The secondary battery comprising a top cover, a pole, a cell and a transfer sheet, wherein the pole comprising a first pole, which being provided in the top cover; the cell comprising a first cell, the first cell leading out a first tab and a second tab with opposite polarity; the transfer sheet comprising a first transfer sheet, the first transfer sheet electrically connecting the first tab to the first pole; wherein the first transfer sheet having a first surface and a second surface oppositely, the first tab and the first transfer sheet being connected in any of the following two ways: a part of tabs of the first tab being connected to the first surface, other part of tabs of the first tab being connected to the second surface, the first transfer sheet being located between the part of tabs of the first tab and the other part of tabs of the first tab, or, all tabs of the first tab being connected to the first surface of the first transfer sheet.

    Management Method and Management System of Secondary Battery

    公开(公告)号:US20240405576A1

    公开(公告)日:2024-12-05

    申请号:US18680913

    申请日:2024-05-31

    Abstract: The present disclosure provides a management method and a management system of a secondary battery, the secondary battery comprises N battery cells connected in series, N being a positive integer greater than or equal to 2. The management method comprises: acquiring a voltage and a battery capacity parameter of both ends of the secondary battery in real time during at least one process of a charging process and a discharging process; determining a characteristic point of the voltage during its changing process, comprising: calculating a ratio of a change of the voltage relative to a change of the battery capacity parameter in real time when the voltage reaches a preset range, and determining that one characteristic point occurs during the changing process of the voltage when the ratio is greater than a characteristic threshold; and determining a uniformity of the secondary battery based on a number of the characteristic points. The management method and the management system of the present disclosure reduce the number of sampling lines, do not rely on the use of AFE chip, have strong practicality, and reduce the cost of the product.

    Method for Preparing In-Situ Polymerized Semi-Solid State Battery

    公开(公告)号:US20240291030A1

    公开(公告)日:2024-08-29

    申请号:US18521857

    申请日:2023-11-28

    CPC classification number: H01M10/0565 H01M10/0525 H01M2300/0085

    Abstract: A method for preparing an in-situ polymerized semi-solid state battery, comprising the following steps: assembling: assembling a cathode plate, a separator and an anode plate into a case to form a dummy cell; first injection: injecting a lithium battery liquid electrolyte; aging and formation; second injection: injecting a mixture of polymer monomers, a plasticizer and an initiator, wherein the polymer monomers are a combination of vinylene carbonate and tripropargyl phosphate; aging, and in-situ polymerization at 58-65° C. to form gel, thus obtaining a low impedance semi-solid state battery. The formulation of the second injection comprises a tridimensional monomer, and the liquid electrolyte can be locked in the three-dimensional structure after crosslinking. Compared with a chain polymer, fewer polymers can be used to achieve the gel effect, the formed gel structure is more stable and possesses better thermal stability, and at the same time, the liquid component is higher, and the impedance is lower, so that the semi-solid state battery with low impedance is obtained.

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