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    ELECTROCHEMICAL DEVICE
    2.
    发明申请
    ELECTROCHEMICAL DEVICE 有权

    公开(公告)号：US20210119261A1

    公开(公告)日：2021-04-22

    申请号：US16975169

    申请日：2019-03-22

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： HIDEO SAKATA ,  YUSUKE NAKAMURA ,  MASATOSHI TAKESHITA ,  MOTOHIRO SAKATA

    IPC: H01M10/0569 ,  H01M4/60 ,  H01M10/0525

    Abstract: An electrochemical device includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and an electrolytic solution. The positive electrode active material includes a conductive polymer, and the electrolytic solution includes a lithium salt and a nonaqueous solvent. The nonaqueous solvent contains a first solvent and a second solvent. The first solvent includes γ-butyrolactone, and the second solvent includes at least one selected from the group consisting of an unsaturated cyclic carbonate ester and a cyclic carboxylic acid anhydride.

    ELECTROCHEMICAL DEVICE
    5.
    发明公开
    ELECTROCHEMICAL DEVICE 审中-公开

    公开(公告)号：US20230223206A1

    公开(公告)日：2023-07-13

    申请号：US18000276

    申请日：2021-05-18

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： HIROKI HAYASHI ,  NAO MATSUMURA ,  HIDEKI SHIMAMOTO ,  SHOHEI MASUDA ,  HIDEO SAKATA ,  HIROYUKI MAESHIMA

    IPC: H01G11/06 ,  H01G11/48 ,  H01G11/50

    CPC classification number: H01G11/06 ,  H01G11/48 ,  H01G11/50

    Abstract: An electrochemical device includes a positive electrode that includes an active layer containing a polyaniline compound. An infrared absorption spectrum of the active layer has a first peak, a second peak, a third peak, and a fourth peak that are derived from the polyaniline compound. The first peak appears at a wave number in a range from 1,100 cm−1 to 1,200 cm−1, inclusive. The second peak appears at a wave number in a range of more than 1,200 cm−1 and less than or equal to 1,400 cm−1. The third peak appears at a wave number in a range from 1,450 cm−1 to 1,550 cm−1, inclusive. And the fourth peak appears at a wave number in a range of more than 1,550 cm−1 and less than or equal to 1,650 cm−1. In a discharged state, a ratio ID3/ID0 of a height ID3 of the third peak to a total ID0 of heights of the first peak, the second peak, the third peak, and the fourth peak ranges from 0.18 to 1.42, inclusive.

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