发明公开
EP2270903A4 METHOD FOR PRODUCTION OF CATHODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, CATHODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY PRODUCED BY THE METHOD, ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY
审中-公开
方法制造活性正极材料的锂离子电池，这种方法制成的正极活性材料的锂离子电池，电极锂离子电池和锂的离子电池
- 专利标题： METHOD FOR PRODUCTION OF CATHODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, CATHODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY PRODUCED BY THE METHOD, ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY
- 专利标题（中）： 方法制造活性正极材料的锂离子电池，这种方法制成的正极活性材料的锂离子电池，电极锂离子电池和锂的离子电池
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申请号： EP09735215申请日： 2009-04-20
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公开(公告)号： EP2270903A4公开(公告)日： 2013-12-25
- 发明人: NAKANO MASATSUGU , SAITOU MITSUMASA
- 申请人： SUMITOMO OSAKA CEMENT CO LTD
- 专利权人： SUMITOMO OSAKA CEMENT CO LTD
- 当前专利权人： SUMITOMO OSAKA CEMENT CO LTD
- 优先权： JP2008115982 2008-04-25
- 主分类号： H01M4/58
- IPC分类号： H01M4/58 ; B82Y30/00 ; C01B25/45 ; C01D15/00 ; H01M4/136 ; H01M4/36 ; H01M4/62 ; H01M10/052 ; H01M10/0525 ; H01M10/36
摘要：
A method for producing a cathode active material for lithium ion batteries includes a step of synthesizing LiFePO 4 by carrying out a hydrothermal reaction using an Li salt, a Fe salt, and a phosphoric acid source as raw materials. Elements Li and Fe in the Li and Fe salts are added to the reaction system in amounts excessively larger than the theoretical amounts required for the hydrothermal reaction. The synthesized LiFePO 4 has an average primary particle size of equal to or larger than 30 nm and equal to or smaller than 100 nm.
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