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    • 6. 发明申请
    • Alkaline dry battery
    • 碱性干电池
    • US20090098462A1
    • 2009-04-16
    • US11919885
    • 2006-08-25
    • Michiko FujiwaraTadaya OkadaYasuo MukaiHidekatsu IzumiShigeto Noya
    • Michiko FujiwaraTadaya OkadaYasuo MukaiHidekatsu IzumiShigeto Noya
    • H01M4/32
    • H01M4/32H01M4/24H01M4/364H01M4/42H01M4/62H01M6/08
    • In order to provide an alkaline dry battery which enables to improve the operational stability of digital equipment by suppressing the progress of polarization during heavy load pulse discharge while maintaining the excellent heavy load discharge characteristics, and has an excellent reliability in terms of the leakage resistance and the safety under short-circuit conditions, the alkaline dry battery includes a positive electrode including a nickel oxyhydroxide powder and a manganese dioxide powder as positive electrode active materials, and including graphite as a conductive material; a negative electrode including zinc or a zinc alloy as a negative electrode active material; a separator interposed between the positive electrode and the negative electrode; a negative electrode current collector inserted in the negative electrode; an aqueous alkaline solution included in the separator; a battery case housing the positive electrode, the negative electrode, the separator, the negative electrode current collector and the aqueous alkaline solution; a sealing member for sealing an opening of the battery case, wherein the positive electrode includes a calcium compound in an amount of 0.1 to 10 mol % relative to a total amount of the positive electrode active material, and the content of iron element in the calcium compound is 150 ppm or less.
    • 为了提供一种碱性干电池,其能够通过抑制重负载脉冲放电期间的极化进行而提高数字设备的操作稳定性,同时保持优异的重负载放电特性,并且在耐漏电性方面具有优异的可靠性, 在短路条件下的安全性,碱性干电池包括含有氢氧化正镍粉末和二氧化锰粉末的正极作为正极活性物质,并且包括石墨作为导电材料; 包含锌或锌合金的负极作为负极活性物质; 夹在正极和负极之间的隔膜; 负极集电体插入负极中; 包含在隔膜中的碱性水溶液; 容纳正极,负极,隔膜,负极集电体和碱性水溶液的电池壳体; 用于密封电池壳体的开口的密封构件,其中所述正极包含相对于所述正极活性物质的总量为0.1〜10摩尔%的钙化合物,所述钙元素的含量 化合物为150ppm以下。