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:
Apr. 17, 2007
Filed:
Jun. 21, 2005
Kenichi Murakami, Wako, JP;
Manabu Iwaida, Wako, JP;
Shigeki Oyama, Wako, JP;
Toshiaki Fukushima, Yao, JP;
Tomohiko Kawaguchi, Yao, JP;
Kouki Ozaki, Inuyama, JP;
Masanori Tsutsui, Inuyama, JP;
Kenichi Murakami, Wako, JP;
Manabu Iwaida, Wako, JP;
Shigeki Oyama, Wako, JP;
Toshiaki Fukushima, Yao, JP;
Tomohiko Kawaguchi, Yao, JP;
Kouki Ozaki, Inuyama, JP;
Masanori Tsutsui, Inuyama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
No-Tape Industrial Co., Ltd., Osaka, JP;
Daido Metal Company Ltd., Nagoya, JP;
Abstract
In an electrode for an electric double layer capacitor of the present invention, the peak value of particle size distribution of graphite particles added to a conductive adhesive is in a range of 2.6 to 3.2 μm, not less than 100,000 dimples having a largest outer diameter in a range of 4 to 10 μm and a depth in a range of 4 to 15 μm are formed on the surface of the collector sheet per 1 cm, and the occupied area of the dimples to the entire surface area of the collector sheet is not more than 50%. By determining the saponification value of polyvinylalcohol which is used as a binder component of the conductive adhesive in a range of 90.0 to 98.5, adhesiveness of the collector sheet and the electrode forming sheet is improved. Furthermore, by substituting H atoms contained in the polyvinylalcohol with Si atoms, adhesiveness of the collector sheet and the electrode forming sheet can be further improved.