发明公开
EP2128915A1 Li-Ni COMPLEX OXIDE PARTICLE POWDER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
有权
基本信息:
- 专利标题： Li-Ni COMPLEX OXIDE PARTICLE POWDER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
- 专利标题（中）：LI-NI复合氧化物颗粒粉末与水游离电解液，用于生产和二次电池二次电池用无水ELEKTROLYT
- 申请号：EP08720340.2 申请日：2008-03-05
- 公开(公告)号：EP2128915A1 公开(公告)日：2009-12-02
- 发明人： KIKUYA, Kazuhiko , SASAKI, Osamu , SANTOKI, Teruaki , YAMAMOTO, Hiroshi
- 申请人： Toda Kogyo Corporation
- 申请人地址： 1-4, Meijishinkai Otake-shi Hiroshima 739-0652 JP
- 专利权人： Toda Kogyo Corporation
- 当前专利权人： Toda Kogyo Corporation
- 当前专利权人地址： 1-4, Meijishinkai Otake-shi Hiroshima 739-0652 JP
- 代理机构： Woods, Geoffrey Corlett
- 优先权： JP2007054861 20070305
- 国际公布： WO2008123011 20081016
- 主分类号： H01M4/52
- IPC分类号： H01M4/52 ; H01M4/36 ; H01M4/50
摘要：
The present invention relates to Li-Ni composite oxide particles for a non-aqueous electrolyte secondary battery which have a large charge/discharge capacity and are excellent in thermal stability under a charged condition. The above object can be achieved by the Li-Ni composite oxide particles for a non-aqueous electrolyte secondary battery, comprising a Li-Ni composite oxide whose secondary particles form core particles thereof and have a composition represented by the formula: Li x1 Ni 1-y1-z1-w1 Co y1 Mn z1 M w1 O 2 (in which 0.9 ≤ x1 ≤ 1.3; 0.1 ≤ y1 ≤ 0.3; 0.0 ≤ z1 ≤ 0.3; 0 ≤ w1 s 0.1; and M is at least one metal selected from the group consisting of Al and Fe), wherein a Li-Ni composite oxide having a composition represented by the formula: Li x2 Ni 1-y2-z2-w2 Co y2 Mn z2 M w2 O 2 (in which 0.9 ≤ x2 ≤ 1 + z2; 0 ≤ y2 ≤ 0.33; 0 ≤ z2 ≤ 0.5; 0 ≤ w2 ≤ 0.1; and M is at least one metal selected from the group consisting of Al, Fe, Mg, Zr and Ti, is coated or present on a surface of the respective secondary particles.