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

Abstract

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.