| 发明名称 | Negative electrode and lithium ion secondary battery | ||
| 摘要 | A negative electrode includes a negative electrode active material layer containing a negative electrode active material mainly containing silicon and silicon oxide. In the negative electrode, the ratio of the film thickness of the negative electrode active material layer to the particle size distribution D99 is in the range of 1.2 to 2.0, the value of the D99 is in the range of 7 to 27 μm, and the negative electrode active material layer has a density ranging from 1.2 to 1.6 g/cm3. | ||
| 申请公布号 | US9236604(B2) | 申请公布日期 | 2016.01.12 |
| 申请号 | US201313846260 | 申请日期 | 2013.03.18 |
| 申请人 | TDK CORPORATION | 发明人 | Ikeda Yasuhiro;Sano Atsushi |
| 分类号 | H01M4/134;H01M4/131;H01M4/38;H01M4/485;H01M4/02 | 主分类号 | H01M4/134 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A negative electrode comprising a negative electrode active material layer containing a negative electrode active material mainly containing silicon and silicon oxide, wherein: a ratio of a film thickness of the negative electrode active material layer to a particle size distribution D99 is in the range of 1.2 to 2.0; a value of the D99 is in the range of 7 to 27 μm, and the negative electrode active material layer has a density ranging from 1.2 to 1.6 g/cm3. | ||
| 地址 | Tokyo JP | ||