The structural and electrochemical properties of fluorinated graphene have been investigated by using a series of graphene fluorides (CFx, x=0.47, 0.66, 0.89). Fluorinated graphene exhibited high capacity retentions of 75-81% of theoretical capacity at moderate rates as cathode materials for primary lithium batteries. Specifically, CF0.47 maintained a capacity of 356 mAhg-1 at a 5C rate, superior to that of traditional fluorinated graphite. The discharged graphene fluorides also provide an electrochemical tool to probe the chemical bonding on the parent graphene substrate.
Revised: October 7, 2013 |
Published: June 18, 2013
Citation
Meduri P., H. Chen, J. Xiao, J.J. Martinez, T.J. Carlson, J. Zhang, and Z. Deng. 2013.Tunable Electrochemical Properties of Fluorinated Graphene.Journal of Materials Chemistry A 1, no. 27:7866–7869.PNNL-SA-91948.doi:10.1039/c3ta11710c