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Metals such as Li, Na, Mg, etc. are the basis of promising rechargeable batteries, but Al has unique advantages: (i) the most abundant metal in the Earth's crust, (ii) trivalent charge carrier storing three times more charge with each ion transfer compared to Li, (iii) the volumetric capacity of the Al anode is four times higher than that of Li while their gravimetric capacities are similar, (iv) employing a metallic Al anode is not a big safety risk as it is for alkali metals.
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Eftekhari et al. (2017) studied this question.
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