Patent · US Active

Proton exchange material and method therefor

US9923224B2 · kind B2 · utility

0Cited by

20References

9Claims

0Family size

Assignees

AUDI AG · DE
TOYOTA JIDOSHA KABUSHIKI KAISHA · JP

Inventors

Zhiwei Yang · Laishui, CN
Mallika Gummalla · Longmeadow, US
Yoichi Hosokawa · Ann Arbor, US

Key dates

Filing date	Dec 21, 2012
Grant date	Mar 20, 2018
Priority date	—
Expiry date	Jul 9, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A proton exchange material includes a linear perfluorinated carbon backbone chain and a side chain extending off of the linear perfluorinated carbon backbone chain. The side chain includes at least one sulfonimide group, —SO2-NH—SO2-, and a carbon chain link between the at least one sulfonimide group and the linear perfluorinated carbon backbone chain. The carbon chain link has less than three carbon atoms.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.