Patent · US Active

Mixed-ionomer electrode

US9391336B2 · kind B2 · utility

1Cited by

2References

15Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Thomas H. Madden · Glastonbury, US
Robert Mason Darling · South Windsor, US
Michael L. Perry · Glastonbury, US

Key dates

Filing date	Aug 23, 2010
Grant date	Jul 12, 2016
Priority date	—
Expiry date	Apr 23, 2031

Classification

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

Abstract

A membrane electrode assembly includes a membrane, an anode catalyst layer and a cathode catalyst layer. The anode catalyst layer is on a first side of the membrane and the cathode catalyst layer is on a second side of the membrane, wherein the second side of the membrane is opposite the first side of the membrane along a first axis. The cathode catalyst layer includes agglomerates formed of a catalyst support supporting catalyst particles, an agglomerate ionomer and an inter-agglomerate ionomer. The agglomerate ionomer surrounds the agglomerates and the inter-agglomerate ionomer is in regions between the agglomerates surrounded by the agglomerate ionomer. The agglomerate ionomer is different than the inter-agglomerate. Methods to produce the catalyst layer are also provided.

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