Patent · US Expired

Method of discharging reaction water in PEM fuel cells and fuel cell for carrying out the method

US6576358B2 · kind B2 · utility

11Cited by

5References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ulrich Gebhardt · Langensendelbach, DE
Rainer Leuschner · Regensburg, DE
Matthias Lipinski · Poughkeepsie, US
Manfred Waidhas · Koblenzer Straße, DE

Key dates

Filing date	Mar 30, 2001
Grant date	Jun 10, 2003
Priority date	—
Expiry date	Nov 16, 2021

Classification

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

Abstract

Discharging the reaction water from the novel PEM fuel cells does not require humidification of the reaction gases or an increase in the gas pressure. This is attained in that a hydrophobic layer on the cathode side is used which has a smaller pore size than the layer on the anode side. The reaction water is removed via the anode during the operation of the fuel cell.

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