| 发明名称 |
NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE |
| 摘要 |
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 μm and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 μm or less to a total pore volume is 20% or more. |
| 申请公布号 |
US2014287309(A1) |
申请公布日期 |
2014.09.25 |
| 申请号 |
US201414302176 |
申请日期 |
2014.06.11 |
| 申请人 |
Kabushiki Kaisha Toshiba |
发明人 |
SARUWATARI Hidesato;MORISHIMA Hideaki;INAGAKI Hiroki;TAKAMI Norio |
| 分类号 |
H01M4/48;H01M4/485 |
主分类号 |
H01M4/48 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A nonaqueous electrolyte battery comprising:
a positive electrode; a negative electrode comprising a negative electrode current collector; and a nonaqueous electrolyte, wherein a log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 μm and attenuates with a decrease in pore size diameter from an apex of the peak, a specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g, and a ratio of a volume of pores having a pore size diameter of 0.05 μm or less to a total pore volume is 20% or more. |
| 地址 |
Tokyo JP |
