发明授权
- 专利标题： Method for producing positive cathode material for lithium battery, and lithium battery
- 专利标题（中）： 锂电池用正极材料的制造方法以及锂电池
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申请号： US10531191申请日： 2003-10-17
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公开(公告)号： US07498098B2公开(公告)日： 2009-03-03
- 发明人: Shigeto Okada , Jun-ichi Yamaki , Yike Chen , Takafumi Yamamoto , Naoki Hatta
- 申请人： Shigeto Okada , Jun-ichi Yamaki , Yike Chen , Takafumi Yamamoto , Naoki Hatta
- 申请人地址： JP Fukuoka JP Tokyo
- 专利权人： Japan as Represented by President of the University of Kyusyu,Mitsui Engineering & Shipbuilding Co., Ltd.
- 当前专利权人： Japan as Represented by President of the University of Kyusyu,Mitsui Engineering & Shipbuilding Co., Ltd.
- 当前专利权人地址： JP Fukuoka JP Tokyo
- 代理机构： Priest & Goldstein, PLLC
- 优先权： JP2002-303932 20021018
- 国际申请： PCT/JP03/13315 WO 20031017
- 国际公布： WO2004/036672 WO 20040429
- 主分类号： H01M4/58
- IPC分类号： H01M4/58
摘要：
A method for producing a cathode material for a lithium battery, characterized in that it comprises admixing a compound liberating a phosphate ion in a solution and metallic iron, and dissolving the metallic iron, followed by firing, thereby synthesizing ferric phosphate. The above method further comprising reacting a raw material mixture while grinding it down or refluxing can produce ferric phosphate cathode material having a fine particle diameter and exhibiting high activity, through a precursor before firing having a fine particle diameter.