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    LITHIUM-ION CAPACITOR
    1.
    发明公开
    LITHIUM-ION CAPACITOR 审中-公开

    公开(公告)号：US20240128030A1

    公开(公告)日：2024-04-18

    申请号：US18549151

    申请日：2022-03-17

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： SHOHEI MASUDA ,  KENICHI NAGAMITSU ,  NAO MATSUMURA

    IPC: H01G11/06 ,  H01G11/28 ,  H01G11/42 ,  H01G11/62

    CPC classification number: H01G11/06 ,  H01G11/28 ,  H01G11/42 ,  H01G11/62

    Abstract: In a lithium-ion capacitor, the positive electrode includes a positive current collector and a positive electrode mixture layer. The positive electrode mixture layer contains a positive electrode active material. An electrostatic capacity of the positive current collector is less than or equal to 20 μF/cm2. The negative electrode includes a negative current collector and a negative electrode mixture layer. The negative electrode mixture layer contains a negative electrode active material. The electrolyte contains a first lithium salt and a second lithium salt. The first lithium salt is a lithium salt of a fluorine-containing inorganic acid, and the second lithium salt is a lithium salt of a fluorine-containing acid imide. A proportion of a molar concentration of the first lithium salt in a total molar concentration of the first lithium salt and the second lithium salt in the electrolyte is more than 0% and less than or equal to 35%.

    ELECTROCHEMICAL DEVICE
    7.
    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.

    POSITIVE ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE PROVIDED THEREWITH
    9.
    发明申请
    POSITIVE ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE PROVIDED THEREWITH 审中-公开

    公开(公告)号：US20190385798A1

    公开(公告)日：2019-12-19

    申请号：US16490570

    申请日：2018-03-28

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： NAO MATSUMURA

    IPC: H01G11/48 ,  H01M10/052 ,  H01M10/0568 ,  H01M4/137 ,  H01M4/60

    Abstract: An electrochemical device includes a positive electrode and a negative electrode. The positive electrode for the electrochemical device includes a positive current collector, and an active layer including a conductive polymer disposed on the positive current collector. The conductive polymer contains a polyaniline or a derivative of polyaniline. An infrared absorption spectrum of the active layer exhibits a first peak derived from a quaternized nitrogen atom of the polyaniline or the derivative of polyaniline, and a second peak derived from a benzenoid structure of the polyaniline or the derivative of polyaniline. And a ratio of an absorbance of the first peak to an absorbance of the second peak is more than or equal to 0.3.

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