Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-17T08:08:09.891Z Has data issue: false hasContentIssue false
  • English
  • Français

Facile Synthesis of Uniform Carbon Coated Li2S/rGO cathode for High-Performance Lithium-Sulfur Batteries

Published online by Cambridge University Press:  07 May 2018

Gaind P. Pandey Open the ORCID record for Gaind P. Pandey [Opens in a new window] ,
Joshua Adkins  and
Lamartine Meda
Gaind P. Pandey*
Affiliation:
Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125
Joshua Adkins
Affiliation:
Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125
Lamartine Meda
Affiliation:
Department of Chemistry, Xavier University of Louisiana, New Orleans, LA 70125
*
*(Email: gpandey@xula.edu)
Get access

Abstract

Lithium sulfide (Li2S) is one of the most attractive cathode materials for high energy density lithium batteries as it has a high theoretical capacity of 1166 mA h g-1. However, Li2S suffers from poor rate performance and short cycle life due to its insulating nature and polysulfide shuttle during cycling. In this work, we report a facile and viable approach to address these issues. We propose a method to synthesize a Li2S based nanocomposite cathode material by dissolving Li2S as the active material, polyvinylpyrrolidone (PVP) as the carbon precursor, and graphene oxide (GO) as a matrix to enhance the conductivity, followed by a co-precipitation and high-temperature carbonization process. The Li2S/rGO cathode yields an exceptionally high initial capacity of 817 mAh g-1 based on Li2S mass at C/20 rate and also shows a good cycling performance. The carbon-coated Li2S/rGO cathode demonstrates the capability of robust core-shell nanostructures for different rates and improved capacity retention, revealing carbon coated Li2S/rGO composites as an outstanding system for high-performance lithium-sulfur batteries.

Keywords

chemical synthesiscore/shellenergy storage
Type
Articles
Information
MRS Advances , Volume 3 , Issue 60: Energy Materials and Technologies , 2018 , pp. 3501 - 3506
Copyright
Copyright © Materials Research Society 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Ji, X., Lee, K. T., and Nazar, L. F., Nat. Mater. 8, 500, (2009).CrossRefGoogle Scholar
Manthiram, A., Chung, S.-H., and Zu, C., Adv. Mater. 27, 1980 (2015).CrossRefGoogle Scholar
He, J., Chen, Y., Lv, W., Wen, K., Xu, C., Zhang, W., Qin, W., and He, W., ACS Energy Lett. 1, 820 (2016).CrossRefGoogle Scholar
Yang, T., Wang, X., Wang, D., Li, S., Xie, D., Zhang, X., Xia, X., and Tu, J., J. Mater. Chem. A, 4, 16653 (2016).CrossRefGoogle Scholar
Wu, M., Cui, Y., and Fu, Y., ACS Appl. Mater. Interfaces 7, 21479 (2015).CrossRefGoogle Scholar
Yang, Y., Zheng, G., Misra, S., Nelson, J., Toney, M. F., and Cui, Y., J. Am. Chem. Soc. 134, 15387 (2012).CrossRefGoogle Scholar
Jayaprakash, N., Shen, J., Moganty, S. S., Corona, A., and Archer, L. A., Angew. Chem. Int. Ed. 50, 5904 (2011).CrossRefGoogle Scholar
Liang, S., Liang, C., Xia, Y., Xu, H., Huang, H., Tao, X., Gan, Y., and Zhang, W., J. Power Sources 306, 200 (2016) 200.CrossRefGoogle Scholar
Chen, L., Liu, Y., Zhang, F., Liu, C., and Shaw, L. L., ACS Appl. Mater. Interfaces 7, 25748 (2015).CrossRefGoogle ScholarPubMed
Wu, F., Kim, H., Magasinski, A., Lee, J. T., Lin, H.-T., and Yushin, G., Adv. Energy Mater. 4, 1400196 (2014).CrossRefGoogle Scholar
Fu, Y., Su, Y.-S., and Manthiram, A., Adv. Energy Mater. 4, 1300655 (2014).CrossRefGoogle Scholar
Han, K., Shen, J., Hayner, C. M., Ye, H., Kung, M. C., and Kung, H. H., J. Power Sources 251, 331 (2014).CrossRefGoogle Scholar
Jeong, S., Bresser, D., Buchholz, D., Winter, M., and Passerini, S., J. Power Sources 235, 220 (2013).CrossRefGoogle Scholar
Suo, L., Zhu, Y., Han, F., Gao, T., Luo, C., Fan, X., Hu, Y.-S., Wang, C., Nano Energy 13, 467 (2015).CrossRefGoogle Scholar