Method of fabricating an electrolyte material

US9663600B2 · kind B2 · utility

Assignees

• AUDI AG · DE
• TOYOTA JIDOSHA KABUSHIKI KAISHA · JP
• The Board of Trustees of The University of Alabama · US

Inventors

• Zhiwei Yang · Laishui, CN
• Mallika Gummalla · Longmeadow, US
• Yoichi Hosokawa · Ann Arbor, US
• Joseph Stuart Thrasher · Tuscaloosa, US
• Todd S. Sayler · Tuscaloosa, US
• Andrej Matsnev · Anderson, US
• Richard E. Fernandez · Bear, US
• Alfred Waterfeld · Freren, DE

Key dates

• Filing date: Dec 21, 2012
• Grant date: May 30, 2017
• Expiry date: Dec 21, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A method of fabricating low EW, water insoluble electrolyte materials includes providing a perfluorinated polymer resin that includes perfluorinated carbon-carbon backbone chain and sulfonyl fluoride ended perfluorinated side chains, extending from the perfluorinated backbone chains via an ether linkage, exposing the perfluorinated polymer resin to ammonia gas to convert the sulfonyl fluoride groups to sulfonamide groups, —SO2—NH2, which reacts with sulfonyl fluoride containing chemical agent(s) to form sulfonimide groups, and at the same time, generates low EW, 3-dimensional cross-linked, water-insoluble perfluorinated polymer electrolyte materials.