E3S Web Conf.
Volume 16, 201711th European Space Power Conference
|Number of page(s)||7|
|Section||Energy Storage: Fuel Cells|
|Published online||23 May 2017|
Regenerative Energy Storage System for Space Exploration Missions
1 CMR Prototech AS, Fantoftvegen 38, 5072 Bergen, NORWAY
2 Centre for Research and Technology - Hellas (CERTH, 6th km Charilaou-Thermi Rd., GR-57001 Thessaloniki, GREECE
3 European Space Agency, ESTEC -Keplerlaan 1, 2201 AZ Noordwijk Zh, The Netherlands
This paper describes the development and testing of a 1 kW reversible solid oxide fuel cell intended for energy storage on space exploration missions, particularly for long term Mars exploration. The energy is stored as H2 or CO produced by electrolysis of H2O or CO2. The reactants are then converted back to its original composition by producing electricity.
The breadboard was operated for 1250 hours alternating between electrolyser mode and fuel cell mode with H2/H2O as reactants. During the tests, as long as the mechanical integrity of the system was maintained, no degradation effect was observed. At the end of the test period, the fuel cell was operated for three full cycles (approx. 50 hours) with CO/CO2 as reactants. The performance on CO/CO2 was lower than for hydrogen, but sufficient to be used in a compact energy storage system for Mars exploration.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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