Researchers have been able to manufacture molten-air batteries that can be recharged – biggest advantage these batteries have over other high capacity batteries. However, the molten electrolyte requires very high temperatures (~800 °C) for the battery to operate. Researchers are optimistic about trying out different compositions and characteristics so that the battery can operate at regular temperatures.
Researchers have worked out different types of molten air batteries with different storage capacities. The iron, carbon and VB2 -molten air batteries have been developed with intrinsic volumetric energy storage capacities of 10000, 19000, 27000 Wh per liter.
What’s yet to be known is the commercial aspect of these batteries, the overall weight and portability of such batteries if they were to be used in electric vehicles and the energy required to charge these batteries.
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