发明授权
- 专利标题: Alkaline storage battery
- 专利标题(中): 碱性蓄电池
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申请号: US646012申请日: 1991-01-28
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公开(公告)号: US5346781A公开(公告)日: 1994-09-13
- 发明人: Kohji Yuasa , Munehisa Ikoma , Hiroshi Kawano , Osamu Takahashi , Isao Matsumoto
- 申请人: Kohji Yuasa , Munehisa Ikoma , Hiroshi Kawano , Osamu Takahashi , Isao Matsumoto
- 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: JPX1-43709 19890223
- 主分类号: H01M4/24
- IPC分类号: H01M4/24 ; H01M4/38 ; H01M4/80 ; H01M10/24
摘要:
Disclosed is an alkaline storage battery, in which the negative electrode is constituted by a hydrogen absorbing alloy capable of absorbing/desorbing hydrogen electrochemically, and a hydrophobic material is provided in the space between the surface of the negative electrode and the separator while a hydrophilic material is provided in the inside of the negative electrode, thereby properly secure both wetting property and surface hydrophobic property of the negative electrode against the alkaline electrolytic solution. Accordingly, a hydrogen gas generated in charging the battery can be absorbed by a vapor phase reaction in the hydrophobic portion in the surface of the negative electrode which is exposed to the vapor phase and can be absorbed electrochemically in the portion of the negative electrode which is wetted by the electrolytic solution, so that the inner pressure of the battery can be reduced to thereby make it possible to perform quick charging.
公开/授权文献
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