SnS2@Graphene nanosheet arrays grown on carbon cloth as freestanding binder-free flexible anodes for advanced sodium batteries
Document Type
Article
Publication Date
1-5-2016
Abstract
Flexible electrodes with light weight, favorable mechanical strength, low cost and high energy/high power density have attracted tremendous interest for next-generation sodium ion rechargeable batteries. This work reports the first effort to achieve novel flexible free-standing SnS2@Graphene nanosheet arrays as next-generation sodium ion battery anode materials by using a facile two-step solvothermal route. The as-prepared nanosheet arrays serve as an integrated electrode without metal current collectors, binders or any conductive additives, demonstrating excellent cycleability with a capacity of 378 mAh/g after 200 cycles at a specific current of 1200 mA/g and improved rate capability with discharge capacities of 633, 523, 458 and 348 mAh/g at specific currents of 200, 1000, 2000, and 3000 mA/g, respectively. In comparison with most of the widely reported Sn or SnO2-based anode materials, our integrated SnS2@Graphene nanosheet arrays exhibit superior cycling performance and rate capability as well as novel flexible feature for application as anodes in high-energy high-power sodium ion batteries.
Publication Source (Journal or Book title)
Journal of Alloys and Compounds
First Page
357
Last Page
362
Recommended Citation
Xu, W., Zhao, K., Zhang, L., Xie, Z., Cai, Z., & Wang, Y. (2016). SnS2@Graphene nanosheet arrays grown on carbon cloth as freestanding binder-free flexible anodes for advanced sodium batteries. Journal of Alloys and Compounds, 654, 357-362. https://doi.org/10.1016/j.jallcom.2015.09.050