| 发明名称 |
POSITIVE ELECTRODE |
| 摘要 |
In general, according to one embodiment, a positive electrode is provided. The positive electrode includes a positive electrode current collector and a positive-electrode-mixture layer formed on the positive electrode current collector. The positive-electrode-mixture layer includes first pores and second pores. Pore size diameters D1 and D2 of the first and the second pores satisfy relationship: 0.03<D1/D2<0.8. Total volumes V(D1) and V(D2) of the first and the second pores satisfy the following relationship: 2<log V(D1)/log V(D2)<6. |
| 申请公布号 |
US2014272562(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201414197428 |
申请日期 |
2014.03.05 |
| 申请人 |
Kabushiki Kaisha Toshiba |
发明人 |
WATANABE Hidetoshi;MURASHI Yasuaki;TATEBAYASHI Yoshinao;SARUWATARI Hidesato;YOSHIKAWA Hikaru |
| 分类号 |
H01M4/36 |
主分类号 |
H01M4/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A positive electrode comprising:
a positive electrode current collector; and a positive-electrode-mixture layer which is formed on the positive electrode current collector and comprises a positive electrode active material, wherein the positive-electrode-mixture layer comprises first pores and second pores, the first pores having a highest abundance ratio in a pore size diameter distribution obtained by a mercury intrusion method and having a pore size diameter of D1, the second pores having a second highest abundance ratio in the pore size diameter distribution and having a pore size diameter of D2; the pore size diameter D1 and the pore size diameter D2 satisfy a following relationship: 0.03<D1/D2<0.8; and a total volume V(D1) of the first pores and a total volume V(D2) of the second pores obtained from the pore size diameter distribution satisfy a following relationship: 2<log V(D1)/log V(D2)<6. |
| 地址 |
Minato-ku JP |
