In3Se4 and S-doped In3Se4 nano/micro-structures as new anode materials for Li-ion batteries

Han, G., Chen, Z.-G., Ye, D., Wang, B., Yang, L., Zou, Y., Wang, L., Drennan, J. and Zou, J. (2015) In3Se4 and S-doped In3Se4 nano/micro-structures as new anode materials for Li-ion batteries. Journal of Materials Chemistry A, 3(14), pp. 7560-7567. (doi: 10.1039/C5TA00688K)

Abstract

In3Se4 and S-doped In3Se4 nano/micro-structures consisting of thin nanosheets have been developed as new anode materials for Li-ion batteries. Electrochemical performance measurement shows that In3Se4 nano/micro-structures deliver high discharge capacity (e.g. 651.0 mA h g−1 obtained in the 30th cycle at a current density of 50 mA g−1). Through detailed transmission electron microscopy analysis, it has been found that the electrochemical reaction mechanism is the conversion between In3Se4 and Li13In3 + LixSe. Moreover, S doping is demonstrated to be an effective approach to further improve the electrochemical performance of In3Se4 nano/micro-structures. S-doped In3Se4 nano/micro-structures achieve enhanced discharge capacity and cycling stability, with a discharge capacity of 850.6 mA h g−1 in the 30th cycle. This study demonstrates the potential of In3Se4-based nano/micro-structures as anode materials for rechargeable Li-ion batteries.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Han, Dr Guang
• Authors: Han, G., Chen, Z.-G., Ye, D., Wang, B., Yang, L., Zou, Y., Wang, L., Drennan, J., and Zou, J.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Journal of Materials Chemistry A
• Publisher: Royal Society of Chemistry
• ISSN: 2050-7488
• ISSN (Online): 2050-7496