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    ELECTROCHEMICAL DEVICE
    1.
    发明公开
    ELECTROCHEMICAL DEVICE 审中-公开

    公开(公告)号：US20230420726A1

    公开(公告)日：2023-12-28

    申请号：US18246290

    申请日：2021-10-26

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： YUSUKE NAKAMURA ,  YUJI SONODA ,  YASUYUKI ITO

    IPC: H01M10/0525 ,  H01M4/66

    CPC classification number: H01M10/0525 ,  H01M2004/027 ,  H01M4/663

    Abstract: An electrochemical device includes: an electrode body including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; and an electrolyte containing a lithium salt. The negative electrode includes a negative current collector and a negative electrode mixture layer supported on the negative current collector. The negative electrode mixture layer contains a negative electrode active material that is reversibly doped with lithium ions, and the negative current collector has substantially no through-hole. A specific surface area of the negative electrode mixture layer is in a range from 30 m2/g to 60 m2/g, inclusive, and in a discharged state, a potential of the negative electrode is less than or equal to 0.2 V with respect to a Li counter electrode.

    CAPACITOR
    4.
    发明申请
    CAPACITOR 审中-公开

    公开(公告)号：US20170148580A1

    公开(公告)日：2017-05-25

    申请号：US15381844

    申请日：2016-12-16

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： ERI HIROSE ,  MITSUHIRO FUJITA ,  HIROYUKI YANAGISAWA ,  YASUYUKI ITO

    IPC: H01G11/32 ,  H01G11/24

    CPC classification number: H01G11/32 ,  H01G11/24 ,  Y02E60/13

    Abstract: An object of the present invention is to provide a capacitor excellent in reliability, of which charge-discharge characteristics are hardly deteriorated. The capacitor of the present invention includes: a capacitor element including a positive electrode and a negative electrode; and a case that stores the capacitor element together with an electrolytic solution, wherein at least one of the positive electrode and the negative electrode contains activated carbon, and a sum of volumes per unit weight of pores having a pore diameter of from 30 Å to 100 Å inclusive among pores of the activated carbon is 0.2 cm3/g or more.

    CAPACITOR
    10.
    发明申请
    CAPACITOR 有权
    电容器

    公开(公告)号：US20150116907A1

    公开(公告)日：2015-04-30

    申请号：US14521262

    申请日：2014-10-22

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： YASUYUKI ITO

    IPC: H01G11/62 ,  H01G4/32 ,  H01G11/28 ,  H01G11/34

    CPC classification number: H01G11/62 ,  H01G11/24 ,  H01G11/32 ,  H01G11/58 ,  Y02E60/13

    Abstract: A capacitor includes a capacitor element and an electrolyte containing a lactone compound. At least one of a positive electrode and a negative electrode of the capacitor element contains activated carbon Entire surface functional group amount D (meq/g/nm2) in an average sectional area of pores of the activated carbon is calculated at 0.152 or less by the following equation: D=F/S where F represents an entire surface functional group amount per unit weight (meq/g) of the activated carbon, and S represents an area (nm2) of a circle of which diameter is an average diameter of the pores of the activated carbon.

    Abstract translation: 电容器包括电容器元件和含有内酯化合物的电解质。 电容器元件的正极和负极中的至少一个含有活性炭活性碳的孔的平均截面积中的全表面官能团量D（meq / g / nm 2）以0.152以下计算， 以下等式：D = F / S其中，F表示活性炭的单位重量的整个表面官能团量（meq / g），S表示直径为平均直径的圆的面积（nm2） 活性炭的孔隙。

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