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:
Oct. 31, 2017
Filed:
Jun. 24, 2008
Vishal Onkarmal Mittal, Manchester, CT (US);
Lesia V. Protsailo, East Hartford, CT (US);
Sathya Motupally, Milford, CT (US);
Vishal Onkarmal Mittal, Manchester, CT (US);
Lesia V. Protsailo, East Hartford, CT (US);
Sathya Motupally, Milford, CT (US);
Audi AG, Ingolstadt, DE;
Abstract
An ion exchange membrane () for a fuel cell comprises a polymer having an acid functional group normally including protons, and having alkali metal ions partially ion-exchanged with the protons of the acid functional group of the membrane. The partial ion exchange of alkali metal ions into the membrane relates either to patterning of the exchanged ion make-up of the membrane, with some being ion exchanged and some not, or to the extent or concentration of the ion exchange in any particular location, or to both.