Flexible Free-Standing Graphene/SnO2 Nanocomposites Paper for Li-Ion Battery

作者：Liang Junfei; Zhao Yue; Guo Lin^*; Li Lidong

来源：ACS Applied Materials & Interfaces, 2012, 4(11): 5742-5748.

DOI：10.1021/am301962d

• flexible
• free-standing
• GSP
• Li-ion battery
• cycling stability
• capacity

A flexible free-standing graphene/SnO2 nanocomposites paper (GSP) was prepared by coupling a simple filtration method and a thermal reduction together for the first time. Compared with the pure SnO2 nanoparticles, the GSP exhibited a better cycling stability, because the graphene with high mechanical strength and elasticity can work as a buffer to prevent the volume expansion and contraction of SnO2 nanoparticles during the Li+ insertion/extraction process. Meanwhile, compared with single graphene paper, the GSP showed a higher capacity because of the hybridizing with higher capacity SnO2 nanoparticles. The excellent electrochemical performance of the GSP as an anode material in Li-ion battery was obtained. The as-prepared GSP shows a great potential for flexible Li-ion batteries.

• 出版日期2012-11
• 单位北京航空航天大学