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:
Apr. 08, 2003
Filed:
Sep. 20, 2000
Song Cheng, Tucson, AZ (US);
Moltech Corporation, Tucson, AZ (US);
Abstract
Provided are cathode current collectors for use in electrochemical cells, wherein the current collector comprises a conductive primer layer applied upon a conductive support, and the primer layer comprises from about 20 to 60% by weight of a crosslinked polymeric material formed from a reaction of a polymeric material having hydroxyl groups and a crosslinking agent, about 2 to 15% by weight of a cationic polymer comprising quaternary ammonium salt groups, and about 35 to 75% by weight of a conductive filler. The present invention also pertains to methods of forming such cathode current collectors for use in electrochemical cells comprising: (i) an anode comprising lithium, and (ii) a cathode comprising an electroactive sulfur-containing material, and electrochemical cells comprising such cathode current collectors.