| 发明名称 |
Solid electrolytic capacitor |
| 摘要 |
A solid electrolytic capacitor is impregnated with a conductive polymer dispersion solution comprising sorbitol. In the capacitor, the hydroxyl group of sorbitol acts as the oxygen source necessary for the anodic oxidation of anodic oxide film when voltage is applied to the solid electrolytic capacitor. Consequently, the oxide film is repaired and withstand voltage property is improved, which is thought to be due to the anodic oxidation that repairs the damage on the oxide film. Superior electric capacitance can further be attained by specifying the sorbitol content in the dispersion solution to be at 60-90 wt %. |
| 申请公布号 |
US8837114(B2) |
申请公布日期 |
2014.09.16 |
| 申请号 |
US201113637337 |
申请日期 |
2011.03.29 |
| 申请人 |
|
发明人 |
Kamiyama Nozomu;Machida Kenji;Yoshizawa Atsushi;Takeda Sekihiro;Tamamitsu Kenji |
| 分类号 |
H01G9/02;H01G9/00 |
主分类号 |
H01G9/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A solid electrolytic capacitor having an anode body consisting of a valve metal, and a dielectric oxide film layer, a solid electrolyte layer, and a cathode layer sequentially formed on the surface of the anode body, the anode body being impregnated with a conductive polymer dispersion solution comprising sorbitol to form a solid electrolyte comprising 60-90 wt % of the sorbitol. |
| 地址 |
|
