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. 27, 2001
Filed:
Dec. 08, 1997
NEC Corporation, Tokyo, JP;
Abstract
An electric double layer capacitor is formed by stacking one or a plurality of basic cells each having a pair of polarized electrodes, collectors, and a gasket unit. The polarized electrodes oppose each other via a separator made from a porous material soaked in a water-based electrolytic solution such as sulfuric acid. The collectors contact surfaces of the polarized electrodes away from surfaces in contact with the separator. The gasket unit is so arranged as to surround peripheral end faces of the polarized electrodes with a predetermined spacing therebetween. In this electric double layer capacitor, a peripheral portion of the separator projecting from the polarized electrode end faces is surrounded by another material.