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:
Dec. 21, 2021
Filed:
Jul. 31, 2019
Robert Bosch Gmbh, Stuttgart, DE;
Soo Kim, Cambridge, MA (US);
Mordechai Kornbluth, Brighton, MA (US);
Jonathan Mailoa, Cambridge, MA (US);
Georgy Samsonidze, San Francisco, CA (US);
Lei Cheng, Sunnyvale, CA (US);
Sondra Hellstrom, East Palo Alto, CA (US);
Boris Kozinsky, Waban, MA (US);
Nathan Craig, Santa Clara, CA (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Corrosion-resistant oxide films for use with proton exchange membrane fuel cells are described. Bipolar plates of proton exchange membrane fuel cells are subject to highly-acidic environments that can degrade the bulk material and associated properties of the bipolar plate leading to reduced proton exchange membrane fuel cell lifetimes. Materials, structures, and techniques for increasing the corrosion resistance of bipolar plates are disclosed. Such materials include substrates having a surface portion, which includes an FeOoxide layer having (110), (012), or (100) FeOsurface facets configured to impart corrosion-resistance properties to the substrate.