Tin-based composite anodes for potassium-ion batteries
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The electrochemical behaviour of a Sn-based anode in a potassium cell is reported for the first time. The material is active at low potentials vs. K/K+, and encouraging capacities of around 150 mA h g-1 are recorded. Experimental evidence shows that Sn is capable of alloying/de-alloying with potassium in a reversible manner.
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Chemical Communications