| 发明名称 | Anode and secondary battery | ||
| 摘要 | A secondary battery capable of improving cycle characteristics is provided. An anode includes: an anode active material layer on an anode current collector, the anode active material layer including a plurality of anode active material particles, in which the average particle area of the plurality of anode active material particles observed from a surface of the anode active material layer is within a range of 1 μm2 to 60 μm2 both inclusive. | ||
| 申请公布号 | US8795886(B2) | 申请公布日期 | 2014.08.05 |
| 申请号 | US200912409138 | 申请日期 | 2009.03.23 |
| 申请人 | Sony Corporation | 发明人 | Adachi Momoe;Kurasawa Shunsuke;Konishiike Isamu;Kawase Kenichi |
| 分类号 | H01M4/02;H01M4/13 | 主分类号 | H01M4/02 |
| 代理机构 | Dentons US LLP | 代理人 | Dentons US LLP |
| 主权项 | 1. An anode comprising: an anode active material layer on an anode current collector, the anode active material layer including a plurality of anode active material particles, wherein, the average particle area of the plurality of anode active material particles observed from a surface of the anode active material layer is within a range of and including 1 μm2 to 60 μm2, andthe ratio of the total of particle areas of anode active material particles having a particle area of and including 20 μm2 to 30 μm2 to the total of the particle areas of the plurality of anode active material particles is within a range of and including 10% to 58%. | ||
| 地址 | Tokyo JP | ||