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Freestanding metal nanowires and macroporous materials from ionic liquids for battery applications

Published online by Cambridge University Press:  15 July 2013

Frank Endres
Frank Endres*
Affiliation:
Clausthal University of Technology, Germany; frank.endres@tu-clausthal.de
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Abstract

Ionic liquids are well suited to the electrochemical synthesis of freestanding metallic nanowires as well as macroporous metals and semiconductors. Such materials are potentially interesting for future generation Li-ion batteries. As the energy density of current Li-ion batteries barely exceeds 0.15 kWh/kg (in contrast to the 12 kWh/kg of hydrocarbons), there is a need for new anode and cathode materials if electrically driven cars are to have more than a 150 km cruising range at an affordable price. Freestanding aluminum nanowires and macroporous aluminum are easily feasible from AlCl3-based ionic liquids and show promising charge/discharge behavior even with ionic liquids as electrolytes. The challenges and the potential to make nanowires or macroporous structures of semiconductors (Si, Ge) are also briefly discussed.

Keywords

Battery materialsionic liquidsmacroporous structuresnanowires
Type
Research Article
Information
MRS Bulletin , Volume 38 , Issue 7: Ionic liquids for energy applications , July 2013 , pp. 567 - 571
Copyright
Copyright © Materials Research Society 2013 

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