| 发明名称 | Nonaqueous electrolyte secondary battery | ||
| 摘要 | The present invention has an object to provide a nonaqueous electrolyte secondary battery having high capacity and excellent cycle characteristics. A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes a positive electrode plate containing a lithium-cobalt composite oxide and a lithium-nickel-cobalt-manganese composite oxide (LiaNibCocMn1-b-cO, 0.9<a≦1.2, 0<b≦0.8, 0<c≦0.9) having an average primary particle size of 1.2 μm to 5.0 μm and a negative electrode which contains one of silicon (Si) and silicon oxide (SiOx, 0.5≦x<1.6) and which includes a negative electrode active material that stores and releases lithium ions. | ||
| 申请公布号 | US9590234(B2) | 申请公布日期 | 2017.03.07 |
| 申请号 | US201314439106 | 申请日期 | 2013.10.25 |
| 申请人 | SANYO Electric Co., Ltd. | 发明人 | Nishio Yusuke;Maekawa Masanori |
| 分类号 | H01M4/36;H01M4/131;H01M4/134;H01M4/133;H01M4/583;H01M4/48;H01M4/505;H01M4/525;H01M4/38;H01M10/0525;H01M4/02;H01M10/052 | 主分类号 | H01M4/36 |
| 代理机构 | Westerman, Hattori, Daniels & Adrian, LLP | 代理人 | Westerman, Hattori, Daniels & Adrian, LLP |
| 主权项 | 1. A nonaqueous electrolyte secondary battery comprising: a positive electrode plate containing a lithium-cobalt composite oxide (LiCoO2) and a lithium-nickel-cobalt-manganese composite oxide (LiaNibCocMn1-b-cO2, 0.9<a≦1.2, 0<b≦0.8, 0<c≦0.9) having an average primary particle size of 1.2 μm to 5.0 μm as a positive electrode active material, a negative electrode plate containing graphite and containing silicon oxide (SiOx, 0.5≦x<1.6) as a negative electrode active material, a separator, and a nonaqueous electrolyte, wherein the positive electrode active material contains 5% to 40% by mass of the lithium-nickel-cobalt-manganese composite oxide, wherein the negative electrode active material contains 0.1% to 12% by mass of silicon oxide (SiOx, 0.5≦x<1.6) in terms of silicon. | ||
| 地址 | Daito-shi, Osaka JP | ||