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:
Jan. 08, 2013
Filed:
Aug. 07, 2006
Chiho Yamada, Osaka, JP;
Eri Hirose, Kyoto, JP;
Yoshinori Takamuku, Kyoto, JP;
Hideki Shimamoto, Kyoto, JP;
Chiho Yamada, Osaka, JP;
Eri Hirose, Kyoto, JP;
Yoshinori Takamuku, Kyoto, JP;
Hideki Shimamoto, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An electric double layer capacitor includes a first collector, a first polarizable electrode layer provided on the first collector, a second collector, a second polarizable electrode layer provided on the second collector and facing the first polarizable electrode layer, a separator having an insulating property and provided between the first polarizable electrode layer and the second polarizable electrode layer, and a driving electrolyte impregnated in the first polarizable electrode layer and the second polarizable electrode layer. The polarizable electrode layers mainly contain activated carbon made from phenol resin, have a surface roughness not larger than 0.6 μm, and have an electrode density ranging from 0.5 g/cmto 0.7 g/cm. This electric double layer capacitor has characteristics deteriorating little even at low temperatures, thus having a reliability for a long time.