| 发明名称 |
CURRENT COLLECTOR FOR LITHIUM ION SECONDARY BATTERIES AND POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES |
| 摘要 |
A current collector for a lithium ion secondary battery, on which an electrode mixture layer is formed, satisfies A≧0.10 μm and 6≦(B/A)≦15 when assuming that a three-dimensional center plane average roughness SRa of a surface of at least one side of the current collector on which the electrode mixture layer is formed is A and a ratio of an actual surface area of the surface of at least one side of the current collector to a geometric area of the surface of at least one side of the current collector, which is (actual surface area)/(geometric area), is B. |
| 申请公布号 |
US2016087280(A1) |
申请公布日期 |
2016.03.24 |
| 申请号 |
US201414890209 |
申请日期 |
2014.06.16 |
| 申请人 |
HITACHI METALS, LTD. |
发明人 |
TOYAMA Tatsuya;TAKAHASHI Shin;OKAMOTO Atsushi |
| 分类号 |
H01M4/70;H01M4/66;H01M10/0525 |
主分类号 |
H01M4/70 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A current collector for a lithium ion secondary battery on which an electrode mixture layer is formed, wherein
when assuming that a three-dimensional center plane average roughness SRa of a surface of at least one side of the current collector on which the electrode mixture layer is formed is A and a ratio of an actual surface area of the surface of at least one side of the current collector to a geometric area of the surface of at least one side of the current collector, which is (actual surface area)/(geometric area), is B, A≧0.10 μm and 6≦(B/A)≦15 are satisfied. |
| 地址 |
Tokyo JP |
