| 发明名称 |
POWER STORAGE DEVICE ELECTRONIC DEVICE |
| 摘要 |
To provide a power storage device whose charging and discharging characteristics are unlikely to be degraded by heat treatment. To provide a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolytic solution, and an exterior body. The separator is located between the positive electrode and the negative electrode. The separator contains polyphenylene sulfide. The electrolytic solution contains a solute and two or more kinds of solvents. The solute contains LiFSA at a concentration of higher than or equal to 0.1 wt % and lower than or equal to 50 wt % in the electrolytic solution. One of the solvents is propylene carbonate. |
| 申请公布号 |
US2017117589(A1) |
申请公布日期 |
2017.04.27 |
| 申请号 |
US201615334571 |
申请日期 |
2016.10.26 |
| 申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
TAJIMA Ryota;OGUNI Teppei;NARITA Kazuhei;GOTO Junya;NAKAGAWA Ai;TAKAHASHI Minoru |
| 分类号 |
H01M10/42;H01M4/587;H01M4/04;H01M4/62;H01M4/66;G01R31/36;H01M10/0569;H01M2/16;H01M10/0567;H05K5/00;G01R31/02;H01M10/0525;H01M4/525 |
主分类号 |
H01M10/42 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A power storage device comprising:
a positive electrode including a positive electrode active material layer and a positive electrode current collector; a negative electrode including a negative electrode active material layer and a negative electrode current collector; a separator containing polyphenylene sulfide, the separator located between the positive electrode and the negative electrode; an electrolytic solution containing a solute and two solvents; and an exterior body, wherein one of the two solvents is propylene carbonate. |
| 地址 |
Atsugi-shi JP |
