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    • 1. 发明授权
    • Alkali secondary battery
    • 碱性二次电池
    • US5506076A
    • 1996-04-09
    • US268956
    • 1994-06-30
    • Kunihiko MiyamotoTakeshi FukujuKen Sugimoto
    • Kunihiko MiyamotoTakeshi FukujuKen Sugimoto
    • H01M4/32H01M4/38H01M4/52H01M4/62H01M4/80H01M10/34
    • H01M4/622H01M4/32H01M4/383H01M4/52H01M10/345H01M4/624H01M4/808
    • This invention discloses an alkali secondary battery which includes a cadmium-free positive electrode whose swelling ratio is decreased, and in which the cycle characteristic is improved and the charge efficiency in use at high temperatures is also improved. This alkali secondary battery includes a positive electrode accommodated in a case and having a structure in which a paste containing nickel hydroxide grains, a conductor, and a binder is filled in a metal porous body, a negative electrode accommodated in the case and so arranged as to oppose the positive electrode with a separator sandwiched between them, and an alkali electrolyte contained in the case. The nickel hydroxide grains contained in the positive electrode have a structure in which cobalt and at least one transition metal selected from the group consisting of copper, bismuth, chromium, gallium, indium, lanthanum, scandium, and yttrium are coprecipitated with metal nickel at a ratio of 1.5 to 11.0 wt % with respect to nickel hydroxide.
    • 本发明公开了一种碱性二次电池,其包括无镉正电极,其膨胀比降低,其中循环特性提高,并且在高温下使用的充电效率也得到改善。 该碱性二次电池包括容纳在壳体中的正极,其具有将包含氢氧化镍颗粒,导体和粘合剂的糊料填充到金属多孔体中的结构,容纳在壳体中的负极,并且布置成 以夹在它们之间的隔膜与包含在其中的碱性电解质相对的正极。 包含在正极中的氢氧化镍颗粒具有这样的结构,其中钴和选自铜,铋,铬,镓,铟,镧,钪和钇中的至少一种过渡金属与金属镍共沉淀 相对于氢氧化镍为1.5〜11.0重量%。