Rechargeable magnesium ion battery with nanoporous-carbon electrode for reversible magnesium ion intercalation
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United States of America Patent
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app pub date -
Mar 13, 2017
filing date -
Apr 6, 2016
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Abstract
Nanoporous-carbon grown via pulsed laser deposition can be used as an electrically conductive anode host material for Mg2+ intercalation in rechargeable magnesium batteries. Nanoporous carbon has high surface area, and an open, accessible pore structure tunable via mass density that can improve diffusion. A preferred nanoporous carbon mass density of about 0.5 g/cm3 does not mechanically degrade with successive insertion/de-insertion cycles and provides an average interplanar spacing between graphene sheet fragments of greater than about 4.8 Å, large enough for reversible intercalation of partially-solvated Mg2+.
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