发明申请
- 专利标题： LITHIUM COMPOSITE COMPOUND PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AWUEOUS ELECTROLYTE SECONDARY BATTERY
- 专利标题（中）： 锂复合化合物颗粒及其制造方法和非电解电解质二次电池
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申请号： US13702871申请日： 2011-06-08
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公开(公告)号： US20130119307A1公开(公告)日： 2013-05-16
- 发明人: Hiroyasu Watanabe , Kazutoshi Ishizaki , Taiki Imahashi , Satoshi Nakamura , Osamu Sasaki
- 申请人： Hiroyasu Watanabe , Kazutoshi Ishizaki , Taiki Imahashi , Satoshi Nakamura , Osamu Sasaki
- 申请人地址： JP Otaka-shi, Hiroshima-ken
- 专利权人： TODA KOGYO CORPORATION
- 当前专利权人： TODA KOGYO CORPORATION
- 当前专利权人地址： JP Otaka-shi, Hiroshima-ken
- 优先权： JP2010-132392 20100609
- 国际申请： PCT/JP2011/063126 WO 20110608
- 主分类号： H01M4/525
- IPC分类号： H01M4/525
摘要：
The present invention aims to provide lithium composite compound particles which can exhibit good cycle characteristics and an excellent high-temperature storage property when used as a positive electrode active substance of a secondary battery, and a secondary battery using the lithium composite compound particles. The present invention relates to lithium composite compound particles having a composition represented by the compositional formula: Li1+xNi1−y−z−aCoyMnzMaO2, in which the lithium composite compound particles have an ionic strength ratio A (LiO−/NiO2−) of not more than 0.5 and an ionic strength ratio B (Li3CO3+/Ni+) of not more than 20 as measured on a surface of the respective lithium composite compound particles using a time-of-flight secondary ion mass spectrometer.
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