Spirally would non-aqueous electrolyte secondary battery having insulating members

    公开(公告)号:US10116006B2

    公开(公告)日:2018-10-30

    申请号:US14448429

    申请日:2014-07-31

    Inventor: Masaki Machida

    Abstract: A battery including an electrode assembly is provided. The electrode assembly has first and second current collectors facing region disposed at a winding start end and at a winding terminal end, respectively. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion face each other through the separator in each of the first and second current collector facing regions. At least one of the positive or negative electrode current collector exposed portion has a first insulating member formed thereon in the first current collector facing region at the winding start end and has a second insulating member formed thereon in the second current collector facing region at the winding terminal end. The second insulating member has a melting point lower than that of the first insulating member.

    Battery
    6.
    发明授权
    Battery 有权

    公开(公告)号:US09806374B2

    公开(公告)日:2017-10-31

    申请号:US15420566

    申请日:2017-01-31

    Inventor: Masaki Machida

    Abstract: A battery is provided. The battery includes a positive electrode; a negative electrode; and an electrolyte that includes an electrolyte salt, a solvent, a matrix polymer, and a ceramic powder; wherein the matrix polymer is at least one selected from the group consisting of polyvinyl formal, polyacrylic acid ester, polyvinylidene fluoride, a copolymer of polyvinyl formal, a copolymer of polyacrylic acid ester and a copolymer of polyvinylidene fluoride; and wherein a mass ratio of the ceramic powder to the matrix polymer ranges from 2/1 to 5/1.

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