Researchers from Australia's RMIT University have shown for the first time how a rechargeable battery has the potential for more energy storage than the lithium-ion batteries that are currently available.

The environmentally friendly, rechargeable proton battery could be used to power devices, vehicles, and homes in the future.

The battery uses a carbon electrode to store hydrogen, in addition to a fuel cell, which is reversible, to generate electricity. The proton battery gets its environmental friendly tag as well as economic and energy edge from its use of protons from water and a carbon electrode.

The proton batteries will be sustainable and cheap as well as help in meeting energy requirements in the future without causing further damage to an already-delicate environment, according to the researchers.

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