A ternary sulphonium composite Cu3BiS3/S as cathode materials for lithium–sulfur batteries

Gao, X.; Wang, Y.; Ma, Z.; Jiang, W.; Zou, Y.; Lu, Chunsheng

doi:10.1007/s10853-016-9816-8

Access Status

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Authors

Gao, X.

Wang, Y.

Ma, Z.

Jiang, W.

Zou, Y.

Lu, Chunsheng

Date

2016

Type

Journal Article

Metadata

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Citation

Gao, X. and Wang, Y. and Ma, Z. and Jiang, W. and Zou, Y. and Lu, C. 2016. A ternary sulphonium composite Cu3BiS3/S as cathode materials for lithium–sulfur batteries. Journal of Materials Science. 51 (11): pp. 5139-5145.

Source Title

Journal of Materials Science

DOI

10.1007/s10853-016-9816-8

ISSN

0022-2461

School

Department of Mechanical Engineering

URI

http://hdl.handle.net/20.500.11937/39328

Collection

Curtin Research Publications

Abstract

In this paper, we synthesized a new cathode material (Cu3BiS3) by a solvothermal method for high-performance lithium–sulfur batteries. Cu3BiS3 with a unique flower structure was characterized using the X-ray diffraction, energy-dispersive X-ray spectrometer, and scanning electron microscopy. It is shown that the Cu3BiS3/S flower exhibits a high initial capacity of 1343 mAh g-1 at 0.2 C, and although a capacity fade in subsequent cycles occurs due to polysulfide dissolution and shuttle mechanism, 487 mAh g-1 at 0.2 C can be retained after 100 cycles with the 90–95 % coulombic efficiency.