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    • 53. 发明申请
    • ELECTRIC DOUBLE-LAYER CAPACITOR AND NON-AQUEOUS ELECTROLYTE FOR ELECTRIC DOUBLE-LAYER CAPACITOR
    • 电双层电容器和非水电解电容双电层电容器
    • US20140029165A1
    • 2014-01-30
    • US14008466
    • 2012-03-29
    • Kenzou TakahashiMeiten KohHideo SakataEmi Yamamoto
    • Kenzou TakahashiMeiten KohHideo SakataEmi Yamamoto
    • H01G11/60
    • H01G11/60H01G11/54Y02E60/13
    • Provided is an electric double-layer capacitor excellent in long-term reliability, particularly in suppressing its expansion, and a non-aqueous electrolytic solution for the electric double-layer capacitor. The present invention relates to an electric double-layer capacitor, comprising: a positive electrode; a negative electrode; and a non-aqueous electrolytic solution that includes a non-aqueous solvent and an electrolyte salt, the non-aqueous solvent including: a fluorine-containing ether; a fluorine-containing unsaturated compound (I); and a hydroxyl group-containing compound (II), the fluorine-containing ether being represented by the formula (1): Rf1—O—Rf2  (1) wherein Rf1 and Rf2 are the same as or different from each other, and are each a C1-C10 alkyl group or a C1-C10 fluoro-alkyl group, provided that at least one of Rf1 and Rf2 is a fluoro-alkyl group, the hydroxyl group-containing compound (II) being represented by the formula (2): Rf1OH  (2) wherein Rf1 is as defined above, the total amount of the compounds (I) and (II) being 5,000 ppm or less based on the amount of the fluorine-containing ether.
    • 本发明提供一种电气双层电容器,特别是抑制其膨胀的长期可靠性优异的双电层电容器和用于双电层电容器的非水电解液。 本发明涉及一种双电层电容器,包括:正电极; 负极; 以及包含非水溶剂和电解质盐的非水电解液,所​​述非水溶剂包括:含氟醚; 含氟不饱和化合物(I); 和含羟基的化合物(II),所述含氟醚由式(1)表示:Rf1-O-Rf2(1)其中Rf1和Rf2彼此相同或不同,分别为 C1-C10烷基或C1-C10氟烷基,只要Rf1和Rf2中的至少一个为氟代烷基,则含羟基的化合物(II)由式(2)表示: Rf1OH(2)其中Rf1如上定义,化合物(I)和(II)的总量相对于含氟醚的量为5000ppm以下。