发明授权
- 专利标题： Lithium composite compound particles and process for producing the same, and non-aqueous electrolyte secondary battery
- 专利标题（中）： 锂复合复合颗粒及其制备方法，以及非水电解质二次电池
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申请号： US13132495申请日： 2009-12-03
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公开(公告)号： US09455444B2公开(公告)日： 2016-09-27
- 发明人: Hiroyasu Watanabe , Taiki Imahashi , Kazuhiko Kikuya , Nobuyuki Tagami , Hideaki Sadamura
- 申请人： Hiroyasu Watanabe , Taiki Imahashi , Kazuhiko Kikuya , Nobuyuki Tagami , Hideaki Sadamura
- 申请人地址： JP Hiroshima
- 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 Hiroshima
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： JP2008-310166 20081204
- 国际申请： PCT/JP2009/006602 WO 20091203
- 国际公布： WO2010/064440 WO 20100610
- 主分类号： H01M4/525
- IPC分类号： H01M4/525 ; C01G53/00 ; H01M4/1391 ; H01M10/052 ; H01M10/0566
摘要：
The present invention relates to lithium composite compound particles having a composition represented by the formula: Li1+xNi1−y−zCoyMzO2 (M=B or Al), wherein the lithium composite compound particles have an ionic strength ratio A (LiO−/NiO2−) of not more than 0.3 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. The lithium composite compound particles of the present invention can be used as a positive electrode active substance of a secondary battery which has good cycle characteristics and an excellent high-temperature storage property.
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