FeSe2 Microspheres as a High-Performance Anode Material for Na-Ion Batteries

Kai Zhang; Zhe Hu; Xue Liu; Zhanliang Tao; Jun Chen

doi:10.1002/adma.201500196

FeSe2 Microspheres as a High-Performance Anode Material for Na-Ion Batteries

Adv Mater. 2015 Jun 3;27(21):3305-9. doi: 10.1002/adma.201500196. Epub 2015 Apr 20.

Authors

Kai Zhang¹, Zhe Hu¹, Xue Liu¹, Zhanliang Tao¹, Jun Chen¹

Affiliation

¹ Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.

PMID: 25899537
DOI: 10.1002/adma.201500196

Abstract

FeSe2 microspheres assembled by nano-octahedra are used as an anode material for Na-ion batteries for the first time, showing a high discharge capacity (447 mA h g(-1) at 0.1 A g(-1)), excellent rate performance (388 mA h g(-1) at 5 A g(-1) and 226 mA h g(-1) at 25 A g(-1)), and long cycling stability (372 mA h g(-1) after 2000 cycles at 1 A g(-1)).

Keywords: FeSe2; Na-ion batteries; anode materials; high-rate capability; long-term cyclability.