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AQUEOUS POTASSIUM ION BATTERIES

A salty solution for storage

Stationary storage in buildings can help make better use of intermittent renewable power, but safer and cheaper alternatives to lithium-ion batteries are needed to accelerate deployment. Now, demonstration of an aqueous potassium-ion full cell offers a way forward.

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Correspondence to Lauren E. Marbella.

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Fig. 1: Components of the aqueous KIB.