Rechargeable magnesium batteries are actively pursued in recent years for large-scale grid energy storage and for transportation. Currently, most of the works focus on using Mg metal as the anode and developing cathode materials and electrolytes. The use of Mg metal, however, is limited by the properties of the electrolyte. Therefore, the design of Mg ion batteries with anode materials that is compatible with simple Mg salt electrolytes is an attractive approach. In this talk, we will discuss our recent work on using Sn-based alloys for rechargeable Mg ion batteries. The methods for synthesizing and characterizing these materials will be covered. Overall. They delivered high reversible capacity (&gt; 400mAh/g), excellent stability for hundreds of cycles and high coulombic efficiency. The mechanism behind such high performance will also be discussed. Furthermore, we also show that such anode materials have good compatibility with simple Mg salt electrolyte.

Promoted Mg ion insertion reversibility with Sn-alloys for Mg ion batteries

249th National Meeting (2015)

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