Elizabeth, Indu and Singh, Bhanu Pratap and Gopukumar, Sukumaran (2019) Electrochemical performance of Sb2S3/CNT free-standing flexible anode for Li-ion batteries. Journal of Materials Science, 54 (9). pp. 7110-7118. ISSN 0022-2461

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Abstract

Sb2S3/CNT composite has been synthesized through ethylene glycol-mediated solvothermal process, and binderless, free-standing, flexible anode is prepared from the composite through vacuum filtration technique. The 1-D rod-like structure of Sb2S3 prevents self-agglomeration and exhibits well-guided charge-discharge kinetics and high surface area enhancing their electrochemical performance in Li-ion batteries. The introduction of CNTs to the Sb2S3 facilitates the preparation of free-standing flexible anodes as well as buffers the volume changes that occur during repeated cycling, thereby improving the cycling stability. The Sb2S3/CNT free-standing anode exhibits a high initial discharge capacity of 930 mAhg(-1) at a current rate of 200 mAg(-1). The anode also exhibits excellent lifetime stability and rate capability by cycling at different current rates up to 1200 mAg(-1). Sb2S3/CNT anode gives a stable capacity of 443 mAhg(-1) after 100 cycles at a current density of 200 mAg(-1), while Sb2S3 rods deliver only 293 mAhg(-1) after 100 cycles at the same current rate. This free-standing flexible Sb2S3/CNT anode is highly promising in comparison with conventional graphite powder anode.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Springer Verlag.
Subjects:	Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Mr. Yogesh Joshi
Date Deposited:	02 Mar 2020 07:30
Last Modified:	02 Mar 2020 07:30
URI:	http://npl.csircentral.net/id/eprint/4170

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