Free-standing, curled and partially reduced graphene oxide network as sulfur host for high-performance lithium–sulfur batteries Project supported by the National Basic Research Program of China (Grant No. 2012CB932302), the National Natural Science Foundation of China (Grant Nos. 11634014, 51172271, and 51372269), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA09040202). |
SEM images of ((a), (c)) CPrGO and ((b), (d)) CPrGO–S at different magnifications. (e) carbon and (f) sulfur mapping of the region in panel (b). |