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

Sun, Wenping, Rui, Xianhong, Zhang, Dan, Jiang, Yinzhu, Sun, Ziqi, Liu, Huakun, & Dou, Shixue (2016) Bismuth sulfide: A high-capacity anode for sodium-ion batteries. Journal of Power Sources, 309, pp. 135-140.

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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.

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ID Code: 94583
Item Type: Journal Article
Refereed: Yes
Keywords: Bismuth sulfide; Nanorods; Anode; Sodium-ion batteries
DOI: 10.1016/j.jpowsour.2016.01.092
ISSN: 0378-7753
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2016 Elsevier B.V.
Deposited On: 08 Apr 2016 02:28
Last Modified: 12 Apr 2016 03:51

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