Patent · US Active

Using sacrificial material to mitigate catalyst support corrosion in fuel cell electrode

US7687185B2 · kind B2 · utility

1Cited by

7References

39Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Jingxin Zhang · Beijing, CN
Hubert Gasteiger · Rochester, US
Wenbin Gu · Pittsford, US
Paul Taichiang Yu · Pittsford, US
Jeanette E. O'Hara · Honeoye, US

Key dates

Filing date	Jul 24, 2006
Grant date	Mar 30, 2010
Priority date	—
Expiry date	Oct 25, 2028

Classification

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

Abstract

A fuel cell includes an anode layer, a polymeric ion conductive membrane disposed over the anode layer, a cathode layer disposed over the polymeric ion conductive membrane, and an effective amount of a reactive material that corrodes at a higher rate than support carbon in the cathode layer, anode layer, or both. The reactive material is either proximate to or distributed within the cathode catalyst layer. In a variation, reactive material is also included proximate to the anode layer.

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