Bipolar Storage Battery
    6.
    发明公开

    公开(公告)号:US20230352747A1

    公开(公告)日:2023-11-02

    申请号:US18332486

    申请日:2023-06-09

    IPC分类号: H01M4/68 H01M50/198 H01M10/18

    摘要: A bipolar storage battery includes a bipolar electrode including a positive electrode, a negative electrode, and a bipolar plate provided with the positive electrode on one surface and the negative electrode on another surface. The bipolar storage battery includes an adhesive provided between the one surface of the bipolar plate and the positive electrode to bond the positive electrode to the bipolar plate, and the adhesive is a liquid gasket. This configuration can provide a bipolar storage battery in which, even if corrosion by sulfuric acid contained in an electrolytic solution causes a growth in a positive electrode, the electrolytic solution is prevented from easily entering each part such as an interface between the positive electrode, an adhesive, and a communication hole, and battery performance is less likely to deteriorate.

    Lead-acid battery
    7.
    发明授权

    公开(公告)号:US11735742B2

    公开(公告)日:2023-08-22

    申请号:US17608870

    申请日:2020-05-29

    CPC分类号: H01M4/68 H01M4/14 H01M10/06

    摘要: A lead-acid battery includes a positive electrode plate, a negative electrode plate, an electrolyte solution, and a polymer compound, in which the positive electrode plate includes a positive current collector and a positive electrode material, the negative electrode plate includes a negative current collector and a negative electrode material, the Ca content of the positive current collector is 0.13% by mass or less, and the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of 1H-NMR spectrum, or the polymer compound contains a repeating structure of oxy C2-4 alkylene units.

    Electrode body for lead-acid battery, lead-acid battery using the same, and method of manufacturing electrode body for lead-acid battery

    公开(公告)号:US11342550B2

    公开(公告)日:2022-05-24

    申请号:US16614137

    申请日:2018-10-12

    发明人: Hideaki Kato

    摘要: The weight and size of a lead-acid battery is reduced and the energy density per mass by forming base members of components of the lead-acid battery is improved by using aluminum or aluminum alloy and forming multiple plating layers on a surface of each base member. In order to prevent formation of pinholes in the multiple plating layers, the surface of the base member 22 is subjected to flattening processing, a solder plating layer with a film thickness of 10 μm or more is formed, or many layers of group 4 metals with similar chemical properties are laminated. Moreover, in a positive electrode plate and a negative electrode plate, an active material layer 24 is formed on the outermost lead plating layer by an electrolytic formation treatment to improve the charging and discharging efficiencies of the lead-acid battery and to greatly reduce fall-off the active material layer 24.

    Sealed bipolar battery assembly
    10.
    发明授权

    公开(公告)号:US10797276B2

    公开(公告)日:2020-10-06

    申请号:US15109402

    申请日:2014-12-30

    摘要: Apparatus and techniques such as can include a sealed bipolar battery assembly are described herein. For example, the battery assembly can using two or more sealing techniques, such as to provide a liquid-tight assembly. A sealed current collector assembly can be provided, such as by fitting compressible plastic seals to one or both side of a current collector. An adhesive seal can be applied to an edge or perimeter of the current collector. A plastic seal assembly can be used to anchor the seals or to provide an additional layer of leakage protection should electrolyte seep under hydrophobic plastic seals. Current collector assemblies including stackable casing frames can be assembled to provide a rigid casing. These casing assemblies can be stacked on top of one another to form bipolar cells comprising the battery assembly.