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:
Oct. 26, 1999
Filed:
Dec. 20, 1994
Applicant:
Inventors:
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G / ;
U.S. Cl.
CPC ...
361502 ; 361305 ; 361303 ;
Abstract
The invention provides a polarizable electrode composed of activated carbon/carbon composite having micropores among which micropores having a diameter ranging from 0.1 to 5.0 micrometers have a volume ranging from 0.1 to 1.2 cm.sup.3 /g. The composite further has a specific surface area equal to or greater than 1000 m.sup.2 /g, and a density equal to or greater than 0.5 g/cm.sup.3. The micropores having a diameter of micrometers order to be formed in the polarizable electrode in accordance with the invention, facilitate the movement of ions in the electrode. Thus, it is possible to accomplish a polarizable electrode suitable for a larger amount of current discharge.