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:
Jan. 06, 2004
Filed:
Nov. 09, 2000
Applicant:
Inventors:
Robert J. Allen, Saugus, MA (US);
James R. Giallombardo, Beverly, MA (US);
Emory S. DeCastro, Nahant, MA (US);
Assignee:
DeNora S.p.A., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/88 ; H01M 4/96 ;
U.S. Cl.
CPC ...
H01M 4/88 ; H01M 4/96 ;
Abstract
An ion beam-assisted deposition process for preparing a membrane-electrode structure is described wherein a layer of liquid ionomer is applied to the surface of a carbon cloth gas diffusion electrode structure. The coated structure is heated to form an ionomer film on the cloth electrode and the resulting structure is treated with a metal or metal oxide ion-beam having an energy between 500-2000 eV. The process forms a carbon cloth supported metal or a carbon metal oxide ionomer film membrane-electrode structure.