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:
Nov. 18, 2003
Filed:
Apr. 18, 2001
Applicant:
Inventors:
Steven Joseph Hamrock, Stillwater, MN (US);
John Leonard Lewin, Farmington, MN (US);
Shane Shanhong Mao, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 ; H01M 6/00 ;
U.S. Cl.
CPC ...
H01M 8/10 ; H01M 6/00 ;
Abstract
A membrane electrode assembly (MEA) is provided which comprises an annealed polymer electrolyte membrane (PEM). Additionally, the MEA may include annealed catalyst layers annealed in contact with the annealed PEM. Additionally, methods of manufacture are provided. MEA's according to the present invention may be used in an electrochemical cell, such as a hydrogen fuel cell.