Alkaline battery having a gelled negative electrode
    2.
    发明授权
    Alkaline battery having a gelled negative electrode 失效
    具有胶凝负极的碱性电池

    公开(公告)号:US5587254A

    公开(公告)日:1996-12-24

    申请号:US419054

    申请日:1995-04-07

    CPC分类号: H01M6/22

    摘要: Vibration and shock resistance of alkaline batteries provided with a gel type negative electrode comprising a zinc alloy powder, a gelling agent and an alkaline electrolyte can be improved by using the following three gelling agents in combination in the gel type negative electrode, namely, a crosslinked polyacrylate type water-absorbing polymer having a dispersion viscosity at 25.degree. C. of at least 15,000 cps as a 0.5 wt % aqueous solution and having a particle size of mainly 100-900 microns, a crosslinked and branched type polyacrylic acid or a salt thereof having a dispersion viscosity at 25.degree. C. of at least 15,000 cps as a 0.5 wt % aqueous solution and having a particle size of mainly 100 microns or smaller, and a granular crosslinked and branched type polyacrylic acid or a salt thereof having a dispersion viscosity at 25.degree. C. of at least 15,000 cps as 0.5 wt % aqueous solution and having a particle size of mainly 100-900 microns. The vibration and shock resistance can further be improved by further adding to the gel type negative electrode at least one of oxides, hydroxides and sulfides of a metal selected from indium, tin and bismuth.

    摘要翻译: 通过在凝胶型负极中组合使用以下三种胶凝剂,即提供具有包含锌合金粉末,胶凝剂和碱性电解质的凝胶型负极的碱性电池的抗振动和抗冲击性, 聚丙烯酸酯型吸水性聚合物,其在25℃下的分散体粘度为至少15,000cps,为0.5重量%水溶液,粒径主要为100-900微米,交联和支化型聚丙烯酸或其盐 在25℃下的分散粘度为至少15,000cps,为0.5重量%水溶液,粒径为100微米以下,粒径为100μm以下的粒状交联支链型聚丙烯酸或其盐具有分散粘度 在25℃下为至少15,000厘泊,为0.5重量%水溶液,其粒径主要为100-900微米。 通过进一步向凝胶型负极添加选自铟,锡和铋的金属的氧化物,氢氧化物和硫化物中的至少一种,进一步提高了振动和抗冲击性。