Figure 6

Electrochemical lithium storage performances of Fe₂O₃-based at a low rate.

(a) Cyclic voltammograms of Fe₂O₃-graphene composites at a scan rate of 0.1 mV s⁻¹, (b) First-cycle discharge (lithium insertion) and charge (lithium extraction) curves of various anodes, Cycling performances of (c) bare graphene and (d) Fe₂O₃ based electrodes at 0.1 C.