Abstract
A novel rechargeable high temperature metal – air battery based on the planar solid oxide fuel cell technology has been developed [H. Landes, R. Reichenbacher, ECS Trans. 50(25), 47 (2013)], [W. Drenckhahn, M. Kühne, T. Soller, K. Litzinger, J. Shull, A. Iyengar, H. Greiner, H. Landes, A. Leonide and C. Schuh, ECS Trans. 50(45), 125 (2013).]. The main advantage of this battery type is a Fe/FeOx storage material with very low manufacturing costs and very high theoretical energy densities up to 929 Wh/kg (Fe/FeO//air) [H. Landes and R. Reichenbacher, ECS Trans. 50(25), 47 (2013)]. In this contribution a long term operation test of a short stack configuration conducted over more than 8 months is presented. Even after 10,000 charging/discharging cycles nearly 40% of the storage material could be discharged.
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