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    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    3.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开

    公开(公告)号：US20190013508A1

    公开(公告)日：2019-01-10

    申请号：US16023111

    申请日：2018-06-29

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Yuu Takanashi ,  Masao Inoue ,  Toyoki Fujihara

    IPC: H01M2/34 ,  H01M4/136 ,  H01M4/36 ,  H01M4/58 ,  H01M10/0525

    Abstract: A nonaqueous electrolyte secondary battery includes an electrode assembly including a negative plate and a positive plate including a positive electrode active material mix layer, a nonaqueous electrolyte, a battery case that houses the electrode assembly and the nonaqueous electrolyte, and a pressure-sensitive safety system that operates when the pressure in the battery case reaches a value greater than or equal to a predetermined value. The positive electrode active material mix layer contains lithium carbonate and lithium phosphate. The average particle size of lithium carbonate contained in the positive electrode active material mix layer is greater than the average particle size of lithium phosphate contained in the positive electrode active material mix layer. The number of particles of lithium carbonate contained in the positive electrode active material mix layer is less than the number of particles of lithium phosphate contained in the positive electrode active material mix layer.

    Nonaqueous electrolyte secondary battery
    4.
    发明授权
    Nonaqueous electrolyte secondary battery 有权

    公开(公告)号：US10892467B2

    公开(公告)日：2021-01-12

    申请号：US16023111

    申请日：2018-06-29

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Yuu Takanashi ,  Masao Inoue ,  Toyoki Fujihara

    IPC: H01M2/34 ,  H01M4/136 ,  H01M4/36 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/02 ,  C01B15/16 ,  C01B15/10

    Abstract: A nonaqueous electrolyte secondary battery includes an electrode assembly including a negative plate and a positive plate including a positive electrode active material mix layer, a nonaqueous electrolyte, a battery case that houses the electrode assembly and the nonaqueous electrolyte, and a pressure-sensitive safety system that operates when the pressure in the battery case reaches a value greater than or equal to a predetermined value. The positive electrode active material mix layer contains lithium carbonate and lithium phosphate. The average particle size of lithium carbonate contained in the positive electrode active material mix layer is greater than the average particle size of lithium phosphate contained in the positive electrode active material mix layer. The number of particles of lithium carbonate contained in the positive electrode active material mix layer is less than the number of particles of lithium phosphate contained in the positive electrode active material mix layer.

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
    6.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME 有权

    公开(公告)号：US20220077503A1

    公开(公告)日：2022-03-10

    申请号：US17417162

    申请日：2019-12-19

    Applicant: SANYO Electric Co., Ltd.

    Inventor： Yohei Tao ,  Masao Inoue ,  Keisuke Minami ,  Toyoki Fujihara

    IPC: H01M10/0587 ,  H01M50/417 ,  H01M50/46 ,  H01M10/0568

    Abstract: A non-aqueous electrolyte secondary battery comprises: a positive electrode core; a positive electrode plate having a positive electrode active material layer which is formed on the positive electrode core and contains a positive electrode active material; a negative electrode core; a negative electrode plate having a negative electrode active material layer which is formed on the negative electrode core and contains a negative electrode active material; a separator disposed between the positive and negative electrode plates; and a non-aqueous electrolytic solution, wherein the non-aqueous electrolytic solution contains lithium bis(oxalate) borate, and the value of A/B is 2-11, where A (μmol) is the total amount of lithium bis(oxalate) borate contained in the non-aqueous electrolytic solution, and B(m2) is the total area of the negative electrode active material contained in the region of the negative electrode active material layer facing the positive electrode active material layer with the separator therebetween.

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