Enhanced reversible lithium storage in a nanosize silicon/graphene compositeAustralian Institute for Innovative Materials - Papers
AbstractSi/graphene composite was prepared by simply mixing of commercially available nanosize Si and graphene. Electrochemical tests show that the Si/graphene composite maintains a capacity of 1168 mAh g-1 and an average coulombic efficiency of 93% up to 30 cycles. EIS indicates that the Si/graphene composite electrode has less than 50% of the charge-transfer resistance compared with nanosize Si electrode, evidencing the enhanced ionic conductivity of Si/graphene composite. The enhanced cycling stability is attributed to the fact that the Si/graphene composite can accommodate large volume charge of Si and maintain good electronic contact.
Citation InformationShulei Chou, Jiazhao Wang, Mohammad Choucair, Hua-Kun Liu, et al.. "Enhanced reversible lithium storage in a nanosize silicon/graphene composite" (2010) p. 303 - 306
Available at: http://works.bepress.com/shulei/14/