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Metallurgical approach to enhance the electrochemical activity of magnesium anodes for magnesium rechargeable batteries.

A novel metallurgical approach was adopted to enhance the electrochemical activity of Mg anodes for magnesium rechargeable batteries. The primary electrochemical processes were considered to be grain boundary-mediated. Therefore, appropriate control of the grain size combined with Ca alloying of the Mg anode resulted in a remarkable electrochemical Mg2+/Mg0 cycling activity.