DocumentCode
2390103
Title
Optimization of efficiency and energy density of passive micro fuel cells and galvanic hydrogen generators
Author
Hahn, Robert ; Wagner, Stefan ; Krumbholz, Steffen ; Reichl, Herbert
Author_Institution
Fraunhofer IZM, Berlin
fYear
2008
fDate
9-11 April 2008
Firstpage
34
Lastpage
41
Abstract
A PEM micro fuel cell system is described which is based on self-breathing PEM micro fuel cells in the power range between 1 mW and 1 W. Hydrogen is supplied with on-demand hydrogen production with help of a galvanic cell, that produces hydrogen when Zn reacts with water. The system can be used as a battery replacement for low power applications and has the potential to improve the run time of autonomous systems. The efficiency has been investigated as function of fuel cell construction and tested for several load profiles.
Keywords
fuel cells; micromechanical devices; efficiency optimization; energy density; galvanic hydrogen generators; low power applications; micro fuel cells; power 1 mW to 1 W; Assembly; Batteries; Biomembranes; Electrodes; Fuel cells; Fuel storage; Galvanizing; Hydrogen; Methanol; Power generation;
fLanguage
English
Publisher
ieee
Conference_Titel
Design, Test, Integration and Packaging of MEMS/MOEMS, 2008. MEMS/MOEMS 2008. Symposium on
Conference_Location
Nice
Print_ISBN
978-2-35500-006-5
Type
conf
DOI
10.1109/DTIP.2008.4752947
Filename
4752947
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