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:
Nov. 10, 2009
Filed:
Feb. 28, 2007
Kenro Mitsuda, Tokyo, JP;
Ikuro Suga, Tokyo, JP;
Sadayuki Matsumoto, Tokyo, JP;
Makoto Seto, Tokyo, JP;
Naoki Ochi, Tokyo, JP;
Yoshiyuki Takuma, Tokyo, JP;
Kenro Mitsuda, Tokyo, JP;
Ikuro Suga, Tokyo, JP;
Sadayuki Matsumoto, Tokyo, JP;
Makoto Seto, Tokyo, JP;
Naoki Ochi, Tokyo, JP;
Yoshiyuki Takuma, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided is an electric double layer capacitor including a large capacity single cell having a large electrostatic capacity and a small capacity single cell are connected to the same exterior case in parallel, and a thickness of a separator of the large capacity single cell is made thicker than a thickness of a separator of the small capacity single cell. With this structure, a supply amount of an electrolyte solution to the large capacity single cell is markedly increased compared with the small capacity single cell, thereby being capable of preventing degradation of the large capacity single cells and the small capacity single cells and providing the electric double layer capacitor having an excellent cycle life and having a large power storage amount while keeping characteristics capable of instantaneously allowing large current to flow.