发明授权
- 专利标题: Alkaline battery having a gelled negative electrode
- 专利标题(中): 具有胶凝负极的碱性电池
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申请号: US419054申请日: 1995-04-07
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公开(公告)号: US5587254A公开(公告)日: 1996-12-24
- 发明人: Yuri Kojima , Yuji Mototani , Junichi Asaoka
- 申请人: Yuri Kojima , Yuji Mototani , Junichi Asaoka
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX6-083089 19940421
- 主分类号: H01M4/06
- IPC分类号: H01M4/06 ; H01M4/62 ; H01M6/22 ; H01M4/24
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.
公开/授权文献
- US4915536A Modular yoke end 公开/授权日:1990-04-10
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