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Design and evaluation of a passive self-breathing micro fuel cell for autonomous portable applications

: Weiland, M.; Wagner, S.; Hahn, R.; Reichl, H.

Cigolotti, V. ; Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile -ENEA-, Rome; University of Perugia:
4th European Fuel Cell Piero Lunghi Conference & Exhibition 2011. Proceedings : December 14 - 16, 2011, Rome, Italy
Rome: ENEA, 2011
ISBN: 978-88-8286-254-1
European Fuel Cell Piero Lunghi Conference & Exhibition (EFC) <4, 2011, Rome>
Conference Paper
Fraunhofer IZM ()

A micro fuel cell specifically designed to power complex intelligent autonomous portable systems is presented in this work. The requirements posed by the corresponding pulse shaped load profiles are analyzed and considered for the design of the passive selfbreathing micro fuel cell. Prototypes with an active area of 0.1 cm2 are built based on printed circuit board technologies and wet etching technologies are used for micro structured current collectors. Successful operation of the cell was demonstrated with pulse power densities of up to 220 mW cm-2.