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:
Aug. 19, 1997
Filed:
Apr. 07, 1995
Keryn Ke Lian, Northbrook, IL (US);
Changming Li, Vernon Hills, IL (US);
Lijun Bai, Vernon Hills, IL (US);
Marc K Chason, Schaumburg, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An electrode for an energy storage device uses a protonated polymer that is imbedded with an electroactive metal and coated onto activated carbon. Protonated poly(4-vinylpyridine) is coated onto particles of activated carbon that have high surface area, and the coating is then imbedded with a metal that exhibits electroactive behavior. In one embodiment, ruthenium is plated onto the poly(4-vinylpyridine) to create the electrode. Optionally, a coating of an ionically conductive negatively charged polymer is applied over the ruthenium-imbedded coating. The improved electrode is used to make a capacitor.