Beilstein J. Nanotechnol.2015,6, 1821–1839, doi:10.3762/bjnano.6.186
electrodes. MgH2 reacts with lithium ions in a reversible lithium-driven conversion reaction generating lithium hydride and magnesiummetal: MgH2 + 2Li+ + 2e− Mg + 2LiH. Moreover, this conversion reaction is not restricted to MgH2. It can also be carried out with several different binary and ternary
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Figure 1:
Gravimetric and theoretical volumetric capacities of metals and complex hydrides compared with thos...
Beilstein J. Nanotechnol.2014,5, 1291–1311, doi:10.3762/bjnano.5.143
the most recent developments made and offer our perspectives on how to overcome some of the remaining challenges.
Keywords: cathode; electrolyte; magnesium anode; magnesium battery; magnesiummetal; Introduction
Fueled by an ever increasing demand for electrical energy to power the numerous aspects
provide higher energy densities without compromising the safety of the battery. For example metals such as magnesium and aluminum were proposed [1][7]. Magnesiummetal has been attracting an increased attention as it possesses higher volumetric capacities than lithium metal, i.e., 3832 mAh cm−3 vs 2061
mAh cm−3 for lithium. It may also provide an opportunity for battery cost reductions due to its natural abundance in the earth crust (5th most abundant element) [7][8]. More importantly, despite the fact that magnesiummetal is not competitive with lithium metal on both specific capacity (2205 mAh g−1
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Figure 1:
Schematic depicting a simplified image of metal–electrolyte interfaces for magnesium and lithium me...