发明申请
- 专利标题： Method For Producing Positive Electrode Active Material For Lithium Ion Batteries And Positive Electrode Active Material For Lithium Ion Batteries
- 专利标题（中）： 锂离子电池和正极活性物质锂离子电池正极活性物质的制备方法
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申请号： US13695663申请日： 2011-10-04
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公开(公告)号： US20130043428A1公开(公告)日： 2013-02-21
- 发明人: Yasuhiro Kawahashi , Yoshio Kajiya
- 申请人： Yasuhiro Kawahashi , Yoshio Kajiya
- 申请人地址： JP Chiyoda-ku, Tokyo
- 专利权人： JX NIPPON MINING & METALS CORPORATION
- 当前专利权人： JX NIPPON MINING & METALS CORPORATION
- 当前专利权人地址： JP Chiyoda-ku, Tokyo
- 优先权： JP2011-073298 20110329
- 国际申请： PCT/JP2011/072860 WO 20111004
- 主分类号： H01M4/525
- IPC分类号： H01M4/525 ; F27D3/00
摘要：
The present invention provides a method for producing a high quality positive electrode active material for lithium ion batteries at low cost and at excellent production efficiency. The method for producing a positive electrode active material for lithium ion batteries includes a step of firing a powder of lithium-containing carbonate that is a precursor for positive electrode active material for lithium ion batteries in a rotary kiln. In the step, a temperature at a powder feed part inside of the rotary kiln is kept at 500° C. or more.