NaBH 4/H2O2 Fuel Cells for Air Independent Power Systems
The performance and characteristics of direct sodium-borohydride/hydrogen-peroxide (NaBH4/H2O2) fuel cells are studied in the context of potential applications for air independent propulsion for outer space and underwater. Due to the existence of ocean (sea) water as a natural heat sink, this new fuel cell technology is best suited for underwater propulsion/power systems for small scale high performance marine vehicles. The characteristics of such a power system are compared to other options, specifically for the underwater scenario. The potential of this fuel cell is demonstrated in laboratory experiments. Power density over 1.5 W cm−2, at 65 °C and ambient pressure, have been achieved with the help of some unique treatments of the fuel cell. One such treatment is an in-situ electroplating technique, which results in electrodes with power density 20–40% higher, than that of the electrodes produced by the ordinary ex-situ electroplating method. This unique process also makes repair or reconditioning of the fuel cell possible and convenient.
Postprint version. Published in Journal of Power Sources, Volume 185, Issue 2, 2008, pages 685-690.
© Journal of Power Sources, 2008, Elsevier
Luo, N., Miley, G.H., Kim, K.J., Burton, R., Huang, X. (2008). NaBH 4/H2O2 Fuel Cells for Air Independent Power Systems. Journal of Power Sources, 185(2), 685-690.