Surfactant-Free Aqueous Synthesis of Pure Single-Crystalline SnSe Nanosheet Clusters as Anode for High Energy- and Power-Density Sodium-Ion Batteries.

Yuan, Shuang; Zhu, Yun-Hai; Li, Wang; Wang, Sai; Xu, Dan; Li, Lin; Zhang, Yu; Zhang, Xin-Bo · Adv Mater · 2017

basic_science · Level V

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Abstract

SnSe with 3D hierarchical nanostructure composed of interconnected single-crystal SnSe nanosheets is synthesized via a fast and effective strategy. Unexpectedly, when used as the anode material for Na-ion batteries (NIBs), the SnSe exhibits a high capacity (738 mA h g<sup>-1</sup> ), superior rate capability (40 A g<sup>-1</sup> ), and high energy density in a full cell. These results provide the possibility of SnSe use as NIBs anodes.