3Mg/Mg₂Sn anodes with unprecedented electrochemical performance towards viable magnesium-ion batteries

Abstract

<p>The development of high-performance Mg-alloying anodes operable in conventional electrolytes could be a critical breakthrough for the viability of magnesium-ion batteries (MIBs). Herein, we show that 3Mg/Mg₂Sn can be used...</p>

Rapid, energy-efficient and pseudomorphic microwave-induced-metal-plasma (MIMP) synthesis of Mg2Si and Mg2Ge

“…The links between "cation" vacancies and the presence of either interstitial Mg or electrons could also have profound implications for ionic transport and the application of Mg 2 X as anodes in Mg-ion batteries. [19][20][21] distances 5 for MIMP-synthesised Mg 2 X (X = Si, Ge, Sn) (200 W, 1 min) against covalent radius of X. 60 The horizontal line and value represents the Mg-Mg distance in Mg metal.…”

Advancing towards a Practical Magnesium Ion Battery

“…In addition, the formation of Mg-Sn intermetallics can be studied by using 119 Sn Mössbauer spectroscopy [ 95 ]. To improve the reversibility of the demagnesation/magnesiation, a composite electrode comprising crystalline Mg, amorphous Mg and Mg 2 Sn phases was studied by Ikhe et al, the compatibility of this electrode with several electrolyte solutions was checked [ 96 ]. The irreversible dissolution of Mg from crystalline Mg during the first charge creates pores, and these pores decrease the charge transfer resistance.…”

Corrosion Behavior of an Mg2Sn Alloy

“…Furthermore, a recent study showed that pure Sn does not produce an enhanced cathodic kinetics [ 29 ]. These properties make Mg–Sn alloys ideal candidates for battery anodes [ 30 , 31 , 32 , 33 ]. The bulk Mg 2 Sn phase can be de-alloyed, thereby producing a nanostructured Sn for high performance battery anodes [ 34 ].…”