Figure 4

Conductivity and lithium storage properties of the FLG.
(a) Conductivity of the FLG and inset is the schematic diagram of the four-point measurement. (b) Charge and discharge curves of the FLG. The inset displays the dispersion of the FLG in N-methyl-2-pyrrolidone. (c) The highly cyclic stability of the FLG in lithium storage. The inset is a photograph of a lithium-ion coin cell.