ANSTO Publications Online: Enhanced reversible lithium storage in a nanosize silicon/graphene composite.

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/3204

Title:	Enhanced reversible lithium storage in a nanosize silicon/graphene composite.
Authors:	Chou, SL Wang, JZ Choucair, M Liu, HK Stride, JA Dou, SX
Keywords:	Silicon Electric Batteries Lithium Ions Ionic Conductivity Composite Materials Electrodes
Issue Date:	Feb-2010
Publisher:	Elsevier
Citation:	Chou, S. L., Wang, J. Z., Choucair, M., Liu, H. K., Stride, J. A., & Dou, S. X. (2010). Enhanced reversible lithium storage in a nanosize silicon/graphene composite. Electrochemistry Communications, 12(2), 303-306.
Abstract:	Si/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. © 2010, Elsevier Ltd.
URI:	http://dx.doi.org/10.1016/j.elecom.2009.12.024 http://apo.ansto.gov.au/dspace/handle/10238/3204
ISSN:	1388-2481
Appears in Collections:	Journal Articles

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