Patent · US Expired

Direct methanol fuel cell (DMFC)

US6509112B1 · kind B1 · utility

17Cited by

5References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gunter Luft · Achern, DE
Kurt Pantel · Heroldsberg, DE
Manfred Waidhas · Koblenzer Straße, DE

Key dates

Filing date	Dec 28, 1998
Grant date	Jan 21, 2003
Priority date	—
Expiry date	Dec 28, 2018

Classification

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

Abstract

The invention relates to a DMFC in which an evaporation apparatus is connected before the cell. The fuel, which is predominantly a methanol/water mixture with a possible admixture of inert gas, is variable in its composition, whereby the respective methanol/water and, if warranted, inert gas mixture, can be adjusted in load-dependent fashion. Moreover, the invention relates to a method for operating a DMFC apparatus in which the fuel is present in the anode chamber in gaseous form.

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