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Title: Long term stability of Li-S batteries using high concentration lithium nitrate electrolytes

Abstract

The lithium-sulfur (Li-S) battery is a very promising candidate for the next generation of energy storage systems required for electrical vehicles and grid energy storage applications due to its very high theoretical specific energy (2500 W h kg(-1)). However, low Coulombic efficiency (CE) during repeated Li metal plating/stripping has severely limited the practical application of rechargeable Li-S batteries. In this work, a new electrolyte system based on a high concentration of LiNO3 in diglyme (G2) solvent is developed which enables an exceptionally high CE for Li metal plating/stripping and thus high stability of the Li anode in the sulfur-containing electrolyte. The tailoring of electrolyte properties for the Li anode has proven to be a highly successful strategy for improving the capacity retention and cycle life of Li-S batteries. This electrolyte provides a CE of greater than 99% for over 200 cycles of Li plating/stripping. In contrast, the Li anode cycles for less than 35 cycles (with a high CE) in the state-of-the-art 1 M LiTFSI + 0.3 M LiNO3 in 1,3-dioxolane: 1,2-dimethoxyethane (DOL:DME) electrolyte under the same conditions. The stable Li anode enabled by the new electrolyte may accelerate the applications of high energy density Li-S batteries in both electricalmore » vehicles and large-scale grid energy storage markets.« less

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Joint Center for Energy Storage Research (JCESR); USDOE Office of Science - Office of Biological and Environmental Research
OSTI Identifier:
1418279
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nano Energy; Journal Volume: 40; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
Coulombic efficiency; Cycling stability; Li-S battery; Lithium metal; Lithium nitrate

Citation Formats

Adams, Brian D., Carino, Emily V., Connell, Justin G., Han, Kee Sung, Cao, Ruiguo, Chen, Junzheng, Zheng, Jianming, Li, Qiuyan, Mueller, Karl T., Henderson, Wesley A., and Zhang, Ji-Guang. Long term stability of Li-S batteries using high concentration lithium nitrate electrolytes. United States: N. p., 2017. Web. doi:10.1016/j.nanoen.2017.09.015.
Adams, Brian D., Carino, Emily V., Connell, Justin G., Han, Kee Sung, Cao, Ruiguo, Chen, Junzheng, Zheng, Jianming, Li, Qiuyan, Mueller, Karl T., Henderson, Wesley A., & Zhang, Ji-Guang. Long term stability of Li-S batteries using high concentration lithium nitrate electrolytes. United States. doi:10.1016/j.nanoen.2017.09.015.
Adams, Brian D., Carino, Emily V., Connell, Justin G., Han, Kee Sung, Cao, Ruiguo, Chen, Junzheng, Zheng, Jianming, Li, Qiuyan, Mueller, Karl T., Henderson, Wesley A., and Zhang, Ji-Guang. Sun . "Long term stability of Li-S batteries using high concentration lithium nitrate electrolytes". United States. doi:10.1016/j.nanoen.2017.09.015.
@article{osti_1418279,
title = {Long term stability of Li-S batteries using high concentration lithium nitrate electrolytes},
author = {Adams, Brian D. and Carino, Emily V. and Connell, Justin G. and Han, Kee Sung and Cao, Ruiguo and Chen, Junzheng and Zheng, Jianming and Li, Qiuyan and Mueller, Karl T. and Henderson, Wesley A. and Zhang, Ji-Guang},
abstractNote = {The lithium-sulfur (Li-S) battery is a very promising candidate for the next generation of energy storage systems required for electrical vehicles and grid energy storage applications due to its very high theoretical specific energy (2500 W h kg(-1)). However, low Coulombic efficiency (CE) during repeated Li metal plating/stripping has severely limited the practical application of rechargeable Li-S batteries. In this work, a new electrolyte system based on a high concentration of LiNO3 in diglyme (G2) solvent is developed which enables an exceptionally high CE for Li metal plating/stripping and thus high stability of the Li anode in the sulfur-containing electrolyte. The tailoring of electrolyte properties for the Li anode has proven to be a highly successful strategy for improving the capacity retention and cycle life of Li-S batteries. This electrolyte provides a CE of greater than 99% for over 200 cycles of Li plating/stripping. In contrast, the Li anode cycles for less than 35 cycles (with a high CE) in the state-of-the-art 1 M LiTFSI + 0.3 M LiNO3 in 1,3-dioxolane: 1,2-dimethoxyethane (DOL:DME) electrolyte under the same conditions. The stable Li anode enabled by the new electrolyte may accelerate the applications of high energy density Li-S batteries in both electrical vehicles and large-scale grid energy storage markets.},
doi = {10.1016/j.nanoen.2017.09.015},
journal = {Nano Energy},
number = C,
volume = 40,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 2017},
month = {Sun Oct 01 00:00:00 EDT 2017}
}