Bismuth sulfide: A high-capacity anode for sodium-ion batteries

Authors

Wenping Sun, University of WollongongFollow
Xianhong Rui, Anhui University of Technology
Dan Zhang, University of Wollongong, Zhejiang UniversityFollow
Yinzhu Jiang, Zhejiang University
Ziqi Sun, Queensland University of TechnologyFollow
Hua-Kun Liu, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

105423

Publication Details

Sun, W., Rui, X., Zhang, D., Jiang, Y., Sun, Z., Liu, H. & Dou, S. (2016). Bismuth sulfide: A high-capacity anode for sodium-ion batteries. Journal of Power Sources, 309 135-140.

Abstract

Exploring high-performance anode materials is currently one of the most urgent issues towards practical sodium-ion batteries (SIBs). In this work, Bi2S3 is demonstrated to be a high-capacity anode for SIBs for the first time. The specific capacity of Bi2S3 nanorods achieves up to 658 and 264 mAh g-1 at a current density of 100 and 2000 mA g-1, respectively. A full cell with Na3V2(PO4)3-based cathode is also assembled as a proof of concept and delivers 340 mAh g-1 at 100 mA g-1. The sodium storage mechanism of Bi2S3 is investigated by ex-situ XRD coupled with high-resolution TEM (HRTEM), and it is found that sodium storage is achieved by a combined conversion-intercalation mechanism.