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    • 69. 发明申请
    • SECONDARY BATTERY AND ELECTRONIC DEVICE
    • 二次电池和电子设备
    • US20110250509A1
    • 2011-10-13
    • US13000852
    • 2009-06-30
    • Hiroyuki YamaguchiShunsuke SaitoToru OdaniMasayuki IharaTadahiko Kubota
    • Hiroyuki YamaguchiShunsuke SaitoToru OdaniMasayuki IharaTadahiko Kubota
    • H01M4/62H01M10/056
    • H01M10/052H01M4/131H01M4/133H01M4/136H01M10/0567
    • A secondary battery capable of improving battery characteristics is provided. The secondary battery includes a cathode 21 containing a cathode active material capable of inserting and extracting an electrode reactant, an anode 22 containing an anode active material capable of inserting and extracting the electrode reactant, and an electrolyte containing a solvent and an electrolyte salt. At least one of the cathode 21, the anode 22, and the electrolyte contains a radical scavenger compound. The radical scavenger compound is a compound in which a group having a radical scavenger function exists as a matrix, to which one or more carboxylic metal bases or one or more sulfonic metal bases are introduced. Chemical stability of the cathode 21, the anode 22, or the electrolyte containing the radical scavenger compound is improved. Thus, at the time of charge and discharge, decomposition reaction of the electrolytic solution is easily inhibited.
    • 提供能够提高电池特性的二次电池。 二次电池包括含有能够插入和提取电极反应物的阴极活性物质的阴极21,含有能够插入和提取电极反应物的负极活性物质的阳极22和含有溶剂和电解质盐的电解质。 阴极21,阳极22和电解质中的至少一个含有自由基清除剂化合物。 自由基清除剂化合物是其中具有自由基清除功能的基团作为基质存在的化合物,其中引入一个或多个羧酸金属碱基或一个或多个磺酸金属碱基。 提高阴极21,阳极22或含有自由基清除剂化合物的电解质的化学稳定性。 因此,在充放电时容易抑制电解液的分解反应。