| 发明名称 | Anode for use in a lithium-ion secondary battery, and lithium-ion secondary battery | ||
| 摘要 | A negative electrode for a lithium ion secondary battery including an active material layer that is disposed on a current collector and that contains a negative electrode active material and a binder, in which the negative electrode active material includes an alloy active material and a carbon active material, and the weight ratio between the alloy active material and the carbon active material in the active material layer is 20:80 to 50:50, and the binder contains 0.1 to 15 wt % of an ethylenically unsaturated carboxylic acid monomer polymerization unit. | ||
| 申请公布号 | US9263733(B2) | 申请公布日期 | 2016.02.16 |
| 申请号 | US201013496761 | 申请日期 | 2010.09.22 |
| 申请人 | Zeon Corporation | 发明人 | Wakizaka Yasuhiro;Kobayashi Kei |
| 分类号 | H01M4/02;H01M4/133;H01M4/134;H01M4/36;H01M4/62;H01M10/0525;H01M4/1393;H01M4/1395 | 主分类号 | H01M4/02 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A negative electrode for a lithium ion secondary battery comprising: a current collector; and an active material layer which is disposed on the current collector and which contains a negative electrode active material and a binder, wherein: the negative electrode active material includes an alloy active material and a carbon active material, the alloy active material comprises SiOxCy, wherein 0<x≦3 and 0<y≦5, or silicon, and a weight ratio between the alloy active material and the carbon active material in the active layer is 20:80 to 50:50, and the binder contains 0.1 to 15 wt % of an ethylenically unsaturated carboxylic acid monomer polymerization unit. | ||
| 地址 | Tokyo JP | ||