Patent · US Expired

Low-temperature fuel cell

US6849351B2 · kind B2 · utility

16Cited by

6References

34Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Herbert Hartnack · Erlangen, DE
Josef Lersch · Heroldsbach, DE
Arno Mattejat · Bubenreuth, DE
Karl Strasser · Erlangen, DE

Key dates

Filing date	Dec 10, 2001
Grant date	Feb 1, 2005
Priority date	—
Expiry date	Jan 12, 2022

Classification

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

Abstract

The composite conductor plate of a low-temperature fuel cell poses the following problem: it must be extremely corrosion-resistant to pure oxygen that is humidified by water and to pure hydrogen and must at the same time be able to be processed mechanically. To solve the problem, a composite conductor plate contains 50 to 60 wt. % Ni, 12 to 22 wt. % Cr, 10 to 18 wt. % Mo, 4 to 10 wt. % Fe and 0.5 to 5 wt. % W.

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