发明申请
- 专利标题： Li-Ni-BASED COMPOSITE OXIDE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
- 专利标题（中）： 用于非水电解质二次电池的锂镍基复合氧化物颗粒，其制备方法和非水电解质二次电池
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申请号： US12742125申请日： 2008-11-11
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公开(公告)号： US20100316910A1公开(公告)日： 2010-12-16
- 发明人: Akihisa Kajiyama , Kazuhiko Kikuya , Teruaki Santoki , Osamu Sasaki , Satoshi Nakamura , Taiki Imahashi , Hideaki Sadamura
- 申请人： Akihisa Kajiyama , Kazuhiko Kikuya , Teruaki Santoki , Osamu Sasaki , Satoshi Nakamura , Taiki Imahashi , Hideaki Sadamura
- 优先权： JP2007-293767 20071112
- 国际申请： PCT/JP2008/003259 WO 20081111
- 主分类号： H01M4/131
- IPC分类号： H01M4/131 ; H01M4/485 ; H01M10/052
摘要：
The present invention relates to Li—Ni-based composite oxide particles comprising Mn, and Co and/or Al, wherein Co and Al are uniformly dispersed within the particles, and Mn is present with a gradient of its concentration in a radial direction of the respective particles such that a concentration of Mn on a surface of the respective particles is higher than that at a central portion thereof. The Li—Ni-based composite oxide particles can be produced by allowing an oxide and a hydroxide comprising Mn to mechanically adhere to Li—Ni-based oxide comprising Co and/or Al; and then heat-treating the obtained material at a temperature of not lower than 400° C. and not higher than 1,000° C. The Li—Ni-based composite oxide particles of the present invention are improved in thermal stability and alkalinity.
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