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Fabrication of Graphene-Encapsulated Oxide Nanoparticles: Towards High-Performance Anode Materials for Lithium Storage

Authors


  • This work was financially supported by the Max Planck Society through the program ENERCHEM, the German Science Foundation (Korean–German IRTG), and the DFG Priority Program SPP 1355. We also thank Prof. Dr. Joachim Maier and Dr. Kun Tang for helpful discussions.

Abstract

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Storage shells: The assembly of negatively charged graphene oxide and positively charged oxide nanoparticles by electrostatic interactions, and subsequent chemical reduction, leads to metal oxides encapsulated in flexible and ultrathin graphene shells (see picture). These electrochemically active nanoparticles show a remarkable lithium storage capacity, with an excellent cycle performance.

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