The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2007
Filed:
Aug. 04, 2006
Hidetoshi Ohta, Kanagawa, JP;
Keiichi Hayashi, Kanagawa, JP;
Takashi Tanikawa, Kanagawa, JP;
Atsushi Shimizu, Kanagawa, JP;
Hidetoshi Ohta, Kanagawa, JP;
Keiichi Hayashi, Kanagawa, JP;
Takashi Tanikawa, Kanagawa, JP;
Atsushi Shimizu, Kanagawa, JP;
Power Systems Co., Ltd., Kanagawa, JP;
Abstract
An object of the present invention is to provide a method for conducting electric activation of an electric double layer capacitor, the method making it possible to increase the electrostatic capacitance and to decrease the internal resistance. The method is for conducting electric activation of an electric double layer capacitor in which nonporous carbonaceous electrodes containing graphite-like fine crystalline carbon are soaked in an organic electrolytic solution. The method at least comprises: charging the electric double layer capacitor at a constant current until the interelectrode voltage reaches a predetermined voltage which is not lower than the electrostatic capacitance developing voltage but lower than the rated voltage; conducting constant voltage charging for a predetermined time during which ions of solutes in the organic electrolytic solution are conceived to be adsorbed uniformly on the surface of the fine crystalline carbon at that predetermined voltage.