Abstract
Aluminium/water batteries using hydrogen evolving cathodes are one of the candidate batteries for sub-sea application. However, it is impractical to use parallel plate construction because the significant increase in the anode-cathode gap during long term anodic discharge leads to unacceptable iR losses. A conceptual design, using a dome-shaped configuration, is presented and preliminary tests on a prototype show that such a battery can ensure constant anode-cathode gap and uniform anode dissolution. The energy density of such a battery for a two year period is estimated to be 855 Wh kg−1.
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Shen, P.K., Tseung, A.C.C. & Kuo, C. Design of a dome-shaped aluminium water battery. J Appl Electrochem 24, 145–148 (1994). https://doi.org/10.1007/BF00247786
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DOI: https://doi.org/10.1007/BF00247786