| 发明名称 | Nonaqueous electrolyte secondary battery and method for manufacturing the same | ||
| 摘要 | The nonaqueous electrolyte secondary battery includes: a positive electrode containing a positive-electrode active material; a negative electrode; and a nonaqueous electrolyte. The positive-electrode active material contains a lithium-containing oxide obtained by ion-exchanging part of sodium in a cobalt-containing oxide containing lithium, sodium, and titanium with lithium. | ||
| 申请公布号 | US9350045(B2) | 申请公布日期 | 2016.05.24 |
| 申请号 | US201113250295 | 申请日期 | 2011.09.30 |
| 申请人 | SANYO Electric Co., Ltd. | 发明人 | Saito Motoharu;Ichikawa Shinnosuke;Yanagida Katsunori;Fujimoto Masahisa |
| 分类号 | H01M10/0525;H01M4/131;H01M4/1391;H01M4/505;H01M4/525;H01M10/058 | 主分类号 | H01M10/0525 |
| 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 containing a positive-electrode active material; a negative electrode; and a nonaqueous electrolyte, wherein the positive-electrode active material contains a lithium-containing oxide represented by Lix2Nay2CoαTi(1-α-β)Oγ (where 0<x2<1.1, 0.005≦y≦20.06, 0.70≦α<1.0, 0≦β<0.3, 0.85≦α+β<1.0, and 1.9≦γ≦2.1), wherein the lithium-containing oxide is obtained by ion-exchanging, with lithium, part of sodium in a cobalt-containing oxide containing sodium and titanium, and wherein the cobalt-containing oxide is represented by Lix1Nay1CoαMnβTi(1-α-β)(where 0≦x1≦0.1, 0.7≦y1<1.0, 0.70≦α<1.0, 0≦β<0.3, 0.85<α+β<1.0, and 1.9≦γ≦2.10, and wherein at least part of the cobalt-containing oxide has a crystal structure belonging to space group P63/mmc. | ||
| 地址 | Moriguchi-shi JP | ||