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. 18, 2018
Filed:
Oct. 25, 2016
Applicant:
Convion Oy, Espoo, FI;
Inventors:
Assignee:
CONVION OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04791 (2016.01); H01M 8/04302 (2016.01); H01M 8/04303 (2016.01); H01M 8/2432 (2016.01); H01M 8/243 (2016.01); H01M 8/0612 (2016.01); H01M 8/04089 (2016.01); H01M 8/04223 (2016.01); H01M 8/04701 (2016.01); H01M 8/0432 (2016.01); H01M 8/124 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04798 (2013.01); H01M 8/04097 (2013.01); H01M 8/04223 (2013.01); H01M 8/04302 (2016.02); H01M 8/04303 (2016.02); H01M 8/04373 (2013.01); H01M 8/04731 (2013.01); H01M 8/0618 (2013.01); H01M 8/243 (2013.01); H01M 8/2432 (2016.02); H01M 2008/1293 (2013.01);
Abstract
A start-up transition process is disclosed for a fuel cell system operation state, which includes utilization of predefined first and second temperature limits for the fuel cells, specifying a low temperature operating state of cells below the first limit, at which presence of carbonaceous species at the cells is precluded, a transition temperature range of cells above the first and below the second limit at which fuel flow supply is initiated to the fuel system in a mixture with air, combined with anode tail gas recirculated at a recirculation rate over 70, and an intermediate temperature operating state of the cells above the second temperature limit, at which free oxygen at the anodes.