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:
Jul. 21, 2015
Filed:
Jul. 03, 2008
Stefan Wischmann, Berlin, DE;
Horst Walter Tamler, Witten, DE;
Roland Wunderlich, Bergkamen, DE;
Michael Steinhorst, Essen, DE;
Krasimir Nikolov, Dortmund, DE;
Nicole Weiher, Bochum, DE;
Jens-ulrik Becker, Duisburg, DE;
Stefan Peter Puls, Dortmund, DE;
Bernd Schuhmacher, Dortmund, DE;
Stefan Wischmann, Berlin, DE;
Horst Walter Tamler, Witten, DE;
Roland Wunderlich, Bergkamen, DE;
Michael Steinhorst, Essen, DE;
Krasimir Nikolov, Dortmund, DE;
Nicole Weiher, Bochum, DE;
Jens-Ulrik Becker, Duisburg, DE;
Stefan Peter Puls, Dortmund, DE;
Bernd Schuhmacher, Dortmund, DE;
ThyssenKrupp Steel Europe AG, Duisburg, DE;
Abstract
A bipolar plate which can be produced particularly economically for a fuel cell, with which a high degree of efficiency is guaranteed over a long service life. The bipolar plate has a core layer consisting of a steel material, the surfaces of said core layer, which are associated with the respective electrolyte carriers of the fuel cell, having a corrosion protection layer, protecting the core layer against corrosion. The corrosion protection layers consist of a metal material and extend on both sides over the whole surface of the core layer. At the same time the corrosion protection layers are in turn coated over the whole surface with an electrically conductive functional coating, which is essentially entirely impermeable for the metal ions emerging from the core layer and/or the corrosion protection layers. The invention likewise relates to at least one fuel cell comprising a bipolar plate according to the invention.