In Situ Grown S Nanosheets on Cu Foam: An Ultrahigh Electroactive Cathode for Room-Temperature Na-S Batteries

Authors

Binwei Zhang, University of WollongongFollow
Yundan Liu, Xiangtan University
Yunxiao Wang, University of WollongongFollow
Lei Zhang, University of Wollongong
Mingzhe Chen, University of WollongongFollow
Wei Lai, University of Wollongong
Shulei Chou, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow
Shi Xue Dou, University of WollongongFollow

RIS ID

115635

Publication Details

Zhang, B., Liu, Y., Wang, Y., Zhang, L., Chen, M., Lai, W., Chou, S., Liu, H. & Dou, S. Xue. (2017). In Situ Grown S Nanosheets on Cu Foam: An Ultrahigh Electroactive Cathode for Room-Temperature Na-S Batteries. ACS Applied Materials and Interfaces, 9 (29), 24446-24450.

Abstract

Room-temperature sodium-sulfur batteries are competitive candidates for large-scale stationary energy storage because of their low price and high theoretical capacity. Herein, pure S nanosheet cathodes can be grown in situ on three-dimensional Cu foam substrate with the condensation between binary polymeric binders, serving as a model system to investigate the formation and electrochemical mechanism of unique S nanosheets on the Cu current collectors. On the basis of the confirmed conversion reactions to Na 2 S, The constructed cathode exhibits ultrahigh initial discharge/charge capacity of 3189/1403 mAh g -1 . These results suggest that there is great potential to optimize S cathode by exploiting low-cost Cu substrates instead of conventional Al current collectors.

Grant Number

ARC/DE170100928, ARC/LE0237478