AUTHOR=Yu Qiyao , Wang Bo , Wang Jian , Hu Sisi , Hu Jun , Li Ying 

TITLE=Flowerlike Tin Diselenide Hexagonal Nanosheets for High-Performance Lithium-Ion Batteries

JOURNAL=Frontiers in Chemistry

VOLUME=8

YEAR=2020

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.00590

DOI=10.3389/fchem.2020.00590

ISSN=2296-2646

ABSTRACT=<p>SnSe<sub>2</sub> nanosheet is a common anode for lithium-ion batteries (LIBs), but its severe agglomeration hinders its practical application. Herein, a three-dimensional (3D) SnSe<sub>2</sub> nanoflower (F-SnSe<sub>2</sub>) composed of non-stacking vertical upward hexagonal nanosheets was prepared through a colloidal method as an anode material for LIBs. Benefiting from the advantages of fast reaction-diffusion kinetics and buffering unavoidable volume variation during cycling, the F-SnSe<sub>2</sub> electrode displays remarkable specific capacity of 795 mAh g<sup>−1</sup> after 100 cycles at 100 mA g<sup>−1</sup> and superior rate performance (282 mAh g<sup>−1</sup> at 2,000 mA g<sup>−1</sup>). This work provides an effective way to get non-stacking nanosheets in energy storage field.</p>