发明公开
- 专利标题： METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY
- 专利标题（中）： 方法正极活性材料的锂离子电池，正极活性物质，锂离子电池，电极锂离子电池和锂离子电池的生产
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申请号： EP10755671.4申请日： 2010-03-25
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公开(公告)号： EP2413402A1公开(公告)日： 2012-02-01
- 发明人: NAKANO, Masatsugu , YAMAZAKI, Akinori
- 申请人： Sumitomo Osaka Cement Co., Ltd.
- 申请人地址： 6-28, Rokubancho Chiyoda-ku Tokyo 102-8465 JP
- 专利权人： Sumitomo Osaka Cement Co., Ltd.
- 当前专利权人： Sumitomo Osaka Cement Co., Ltd.
- 当前专利权人地址： 6-28, Rokubancho Chiyoda-ku Tokyo 102-8465 JP
- 代理机构： Vuillermoz, Bruno
- 优先权： JP2009080082 20090327; JP2010038810 20100224
- 国际公布： WO2010109869 20100930
- 主分类号： H01M4/58
- IPC分类号： H01M4/58 ; C01B25/45 ; H01M4/36
摘要：
A method of manufacturing a positive electrode active material for lithium ion batteries, comprising: preparing a mixture containing (A) Li 3 PO 4 , or a Li source and a phosphoric acid source, (B) at least one selected from a group of a Fe source, a Mn source, a Co source and a Ni source, water and an aqueous organic solvent having a boiling point of 150 °C or more, wherein the amounts of (A) and (B) in the mixture are adjusted to amounts necessary to manufacture therefrom LiMPO 4 (wherein M represents at least one selected from the group of Fe, Mn, Co and Ni) at a concentration of 0.5 to 1.5 mol/L; and generating the fine particles of LiMPO 4 (wherein M represents at least one selected from the group of Fe, Mn, Co and Ni) having an average primary particle diameter of 30 to 80 nm by reacting the (A) and the (B) at a high temperature and a high pressure.
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