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Kaiser MR, Liang X, Konstantinov K, et al. A Facile Synthesis of High-Surface-Area Sulfur-Carbon Composites for Li/S Batteries. Chemistry. 2015;21(28):10061-9doi: 10.1002/chem.201500429.
Kaiser, M. R., Liang, X., Konstantinov, K., Liu, H. K., Dou, S. X., & Wang, J. Z. (2015). A Facile Synthesis of High-Surface-Area Sulfur-Carbon Composites for Li/S Batteries. Chemistry (Weinheim an der Bergstrasse, Germany), 21(28), 10061-9. https://doi.org/10.1002/chem.201500429
Kaiser, Mohammad Rejaul, et al. "A Facile Synthesis of High-Surface-Area Sulfur-Carbon Composites for Li/S Batteries." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 21,28 (2015): 10061-9. doi: https://doi.org/10.1002/chem.201500429
Kaiser MR, Liang X, Konstantinov K, Liu HK, Dou SX, Wang JZ. A Facile Synthesis of High-Surface-Area Sulfur-Carbon Composites for Li/S Batteries. Chemistry. 2015 Jul 06;21(28):10061-9. doi: 10.1002/chem.201500429. Epub 2015 May 26. PMID: 26012862.
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Chemistry. 2015 Jul 06;21(28):10061-9. doi: 10.1002/chem.201500429. Epub 2015 May 26.

A Facile Synthesis of High-Surface-Area Sulfur-Carbon Composites for Li/S Batteries.

Chemistry (Weinheim an der Bergstrasse, Germany)

Mohammad Rejaul Kaiser, Xin Liang, Konstantin Konstantinov, Hua-Kun Liu, Shi-Xue Dou, Jia-Zhao Wang

Affiliations

  1. Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia), Fax: (+61)?2-42985731.
  2. Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia), Fax: (+61)?2-42985731. [email protected].
  3. Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia), Fax: (+61)?2-42985731. [email protected].

PMID: 26012862 DOI: 10.1002/chem.201500429

Abstract

Small-grained elemental sulfur is precipitated from sodium thiosulfate (Na2 S2 O3 ) in a carbon-containing oxalic acid (HOOC-COOH) solution through a novel spray precipitation method. Surface area analysis, elemental mapping, and transmission electron micrographs revealed that the spray-precipitated sulfur particles feature 11 times higher surface area compared to conventional precipitated sulfur, with homogeneous distribution in the carbon. Moreover, the scanning electron micrographs show that these high-surface-area sulfur particles are firmly adhered to and covered by carbon. This precipitated S-C composite exhibits high discharge capacity with about 75 % capacity retention. The initial discharge capacity was further improved to 1444 mA h g(-1) by inserting a free-standing single-walled carbon nanotube layer in between the cathode and the separator. Moreover, with the help of the fixed capacity charging technique, 91.6 % capacity retention was achieved.

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: carbon; discharge capacity; spray precipitation; sulfur; sulfur-carbon composite

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