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:
Jul. 20, 1999
Filed:
Jun. 23, 1997
John A Alford, Goose Creek, SC (US);
Westvaco Corporation, New York, NY (US);
Abstract
The present invention relates to lignocellulosic-based carbon-containing double layer energy storage devices having improved electrical power densities. In particular, the invention provides a double layer energy storage cell comprising a pair of electrodes, at least one of which is a carbon paste electrode, a porous ionically conductive separator, and an ion insulating connector, the improvement wherein said carbon paste electrode includes an activated linocellulosic-based carbon having a pore volume of greater than about 0.45 cc/g, a median pore width of 2.0 to 50.0 nm, a specific surface area of greater than about 500 m.sup.2 /g, and a mesopore content, based on the total particle volume of the activated carbon, of greater than about 75%.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile