Graphene/Sulfur@Graphene Composite Structure Material for a Lithium-Sulfur Battery Cathode

Figure 8

(a) Rate performance of G/S-G and G/S and S monolayers, (b) average coulombic efficiency of G/S-G and G/S at different rates, and (c) initial discharge/charge curves of the G/S-G cathode at various C rates from 0.1 C to 1 C.

(a)

(b)

(c)