发明名称 |
PRODUCTION OF MANGANESE DIOXIDE FOR LITHIUM PRIMARY CELL |
摘要 |
PURPOSE:To obtain manganese dioxide for a lithium primary cell capable of drastically extending discharge time by neutralizing specified manganese dioxide with a solution containing lithium hydroxide and lithium nitrate and then subjecting to heat treatment. CONSTITUTION:gamma-type manganese dioxide produced by electrolytic method or manganese dioxide produced by chemical synthesis is neutralized with a solution containing lithium hydroxide and lithium nitrate, and then heated to obtain the desired manganese dioxide. The addition amt. of lithium hydroxide in the neutralization process is preferably 10-35 pts.wt. for 100 pts.wt. manganese dioxide, while the addition amt. of lithium nitrate is 50-300 pts.wt. for 100 pts.wt. manganese dioxide. These lithium hydroxide and lithium nitrate are properly diluted to make a mixture solution for use. The process time of neutralization is preferably 1-7 days at 20-80 deg.C. |
申请公布号 |
JPH0380120(A) |
申请公布日期 |
1991.04.04 |
申请号 |
JP19890214174 |
申请日期 |
1989.08.22 |
申请人 |
MITSUI MINING & SMELTING CO LTD |
发明人 |
YAMAGUCHI MUNETOSHI;NAKAMURA KIYONOBU;SENZAKI HIROHISA |
分类号 |
C01G45/02;H01M4/50 |
主分类号 |
C01G45/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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