Facile Synthesis of Graphene Nanosheets and their Anode Electrochemical Performances in Lithium Ion Batteries

Abstract:

In this work, graphene nanosheets (GNSs) were prepared by the thermal pyrolysis of graphene oxide (GO) at 900 °C for 3 h, and their electrochemical performances as anode materials for lithium ion batteries (LIBs) were also investigated. TEM and SEM images clearly showed that the as-prepared GNSs had a transparent two-dimensional (2D) structure with 5~10 multilayers. The other experimental results (XRD, Raman, TG and FT-IR) confirmed the successful synthesis of GNSs. Electrochemical measurements revealed that GNSs had an initial discharge capacity of 1276 mAh g^-1 and still remained 723 mAh g^-1 after 50 cycles, indicating that the as-prepared GNSs shows a great potential as anode materials for LIBs.

• Periodical: Advanced Materials Research (Volume 800)
• Pages: 522-525
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.800.522
• Online since: September 2013
• Authors: Qi Sheng Ge, Dong Fang Wang, Guang Xing Ping, Da Chen, Mei Qiang Fan, Lai Shun Qin, Chun Jv Lv, Kang Ying Shu
• Keywords: Anode, Graphene (GR), Lithium-Ion Battery, Thermal Pyrolysis

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