Title:
電気二重層キャパシタ用分極性電極及びそれを用いた電気二重層キャパシタ
Document Type and Number:
Japanese Patent JP5807041
Kind Code:
B2
Abstract:
The present invention provides a polarizable electrode for an electrical double layer capacitor which has good high-temperature storage characteristics and can prevent a decrease in electrostatic capacity and increase in internal resistance, and also provides an electrical double layer capacitor using the electrode. A polarizable electrode is formed by mixing Ketjen black, active charcoal and a polytetrafluoroethylene (PTFE) aqueous solution. An etched aluminum foil is used for the collector, and this etched aluminum foil is dipped in a phosphoric acid aqueous solution or an ammonium phosphate or other phosphate aqueous solution to thereby retain 15 to 115 mg/m 2 of phosphorus on the surface of the etched aluminum foil. The electrostatic capacity per unit area on the surface of this etched aluminum foil is 50 to 350 µF/cm 2 .
Inventors:
Shin Watanabe
Masayuki Hagiya
Naoya Nishina
Osamu Nakamura
Masayuki Hagiya
Naoya Nishina
Osamu Nakamura
Application Number:
JP2013137493A
Publication Date:
November 10, 2015
Filing Date:
June 28, 2013
Export Citation:
Assignee:
Nippon Chemi-Con Co., Ltd.
International Classes:
H01G11/66; H01G11/38; H01G11/68
Foreign References:
| WO2007094366A1 |
Attorney, Agent or Firm:
Kiuchi Mitsuharu