Joseph L Cole

US Patent:

7881042, Feb 1, 2011

Filed:

Oct 26, 2006

Appl. No.:

11/553410

Inventors:

Edward R. Buiel - Mount Pleasant SC, US
Victor Eshkenazi - Vaughan, CA
Leonid Rabinovich - Thornhill, CA
Wei Sun - Thornhill, CA
Vladimir Vichnyakov - Newmarket, CA
Adam J. Swiecki - Milton, CA
Joseph E. Cole - New Castle PA, US

Assignee:

Axion Power International, Inc. - New Castle PA

International Classification:

H01G 9/00
H01M 6/04
H01M 4/56

US Classification:

361502, 429204, 429225

Abstract:

A hybrid supercapacitor energy storage device includes at least one lead electrode, at least one carbon electrode, a separator, a casing, and an acid electrolyte. The lead electrode is enveloped in a common glass mat separator known in the lead-acid battery industry. The carbon electrode comprises a highly conductive current collector which is a sheet or other metal material sandwiched between two sheets of electronically conductive shield material. Activated carbon is manufactured using a binder such as polyethylene or PTFE adhered to and in electrical contact with the shield material of the current collector.