发明授权
- 专利标题： Production method of active material for positive electrode of alkaline secondary battery, positive electrode using the active material and production method of alkaline secondary battery using the positive electrode
- 专利标题（中）： 碱性二次电池用正极活性物质的制造方法，使用活性物质的正极和使用正极的碱性二次电池的制造方法
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申请号： US09266938申请日： 1999-03-12
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公开(公告)号： US06268082B1公开(公告)日： 2001-07-31
- 发明人: Masayoshi Hiruma , Naomi Bando , Kunihiko Miyamoto , Makoto Wakabayashi
- 申请人： Masayoshi Hiruma , Naomi Bando , Kunihiko Miyamoto , Makoto Wakabayashi
- 优先权： JP10-063142 19980313; JP10-342170 19981201; JP10-367375 19981224
- 主分类号： H01M458
- IPC分类号： H01M458
摘要：
The present invention is to provide a production method of an active material for an alkaline secondary battery comprising: a step of mixing particles comprising particles mainly containing nickel hydroxide and particles of a metal cobalt or a cobalt compound in a mixer with a sealed structure comprising a heating means in the presence of oxygen and an alkaline aqueous solution while heating. An active material produced by the method allows a high utilization. And a battery assembled with a positive electrode using the active material has an excellent high ratio discharge characteristic, and hardly causes the capacity decline even at the time of recharging after leaving in the over discharge state for a long time.
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