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:
Sep. 28, 2004
Filed:
Sep. 26, 2001
Applicant:
Inventors:
Robert Fleck, Adelsdorf, DE;
Wolfram Kaiser, Bonndorf, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/02 ;
U.S. Cl.
CPC ...
H01M 8/02 ;
Abstract
In a high-temperature fuel cell, the problem exists that a series electrical resistance rises while the high-temperature fuel cell is operating. This rise is caused by oxidation of the fuel-gas-side surface of the bipolar plate. Oxidation of this nature is largely suppressed by an oxidation buffer that is disposed in the fuel gas chamber and takes up the oxygen.