skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effects of Imide-Orthoborate Dual-Salt Mixtures in Organic Carbonate Electrolytes on the Stability of Lithium Metal Batteries

Abstract

The effects of lithium imide and lithium orthoborate dual-salt electrolytes of different salt chemistries in carbonate solvents on the cycling stability of lithium (Li) metal batteries are systematically and comparatively investigated. Two imide salts (LiTFSI and LiFSI) and two orthoborate salts (LiBOB and LiDFOB) are chosen for this study and compared with the conventional LiPF6 salt. Density functional theory calculations indicate that the chemical and electrochemical stabilities follow the order of LiTFSI-LiBOB > LiTFSI-LiDFOB > LiFSI-LiDFOB > LiFSI-LiBOB. The experimental cycling stability of the Li metal batteries with the electrolytes follows the order as LiTFSI-LiBOB > LiTFSI-LiDFOB > LiFSI-LiDFOB > LiPF6 > LiFSI-LiBOB, which is in well accordance with the calculation results. The LiTFSI-LiBOB can effectively protect the Al substrate and form a more robust surface film on Li metal anode, while the LiFSI-LiBOB results in serious corrosion to the stainless steel cell case and a thicker and looser surface film on Li anode. In conclusion, the key findings of this work emphasize that the salt chemistry is critically important for enhancing the interfacial stability of Li metal anode and should be carefully manipulated in the development of high performance Li metal batteries.

Authors:
 [1];  [2];  [2];  [2];  [2];  [2];  [3];  [4];  [2];  [2]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Southwest Petroleum Univ., Sichuan (China)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Beijing Univ. of Chemical Technology, Beijing (China)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Xiamen Univ., Fujian (China)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Science (SC)
OSTI Identifier:
1414952
Alternate Identifier(s):
OSTI ID: 1415141
Report Number(s):
PNNL-SA-128903
Journal ID: ISSN 1944-8244; TRN: US1800750
Grant/Contract Number:  
AC02-05CH11231; AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 10; Journal Issue: 3; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Li metal batteries; dual-salt electrolyte; surface film; cathode electrolyte interphase; cycling stability; 36 MATERIALS SCIENCE

Citation Formats

Li, Xing, Zheng, Jianming, Engelhard, Mark H., Mei, Donghai, Li, Qiuyan, Jiao, Shuhong, Liu, Ning, Zhao, Wengao, Zhang, Ji -Guang, and Xu, Wu. Effects of Imide-Orthoborate Dual-Salt Mixtures in Organic Carbonate Electrolytes on the Stability of Lithium Metal Batteries. United States: N. p., 2017. Web. doi:10.1021/acsami.7b15117.
Li, Xing, Zheng, Jianming, Engelhard, Mark H., Mei, Donghai, Li, Qiuyan, Jiao, Shuhong, Liu, Ning, Zhao, Wengao, Zhang, Ji -Guang, & Xu, Wu. Effects of Imide-Orthoborate Dual-Salt Mixtures in Organic Carbonate Electrolytes on the Stability of Lithium Metal Batteries. United States. doi:10.1021/acsami.7b15117.
Li, Xing, Zheng, Jianming, Engelhard, Mark H., Mei, Donghai, Li, Qiuyan, Jiao, Shuhong, Liu, Ning, Zhao, Wengao, Zhang, Ji -Guang, and Xu, Wu. Wed . "Effects of Imide-Orthoborate Dual-Salt Mixtures in Organic Carbonate Electrolytes on the Stability of Lithium Metal Batteries". United States. doi:10.1021/acsami.7b15117. https://www.osti.gov/servlets/purl/1414952.
@article{osti_1414952,
title = {Effects of Imide-Orthoborate Dual-Salt Mixtures in Organic Carbonate Electrolytes on the Stability of Lithium Metal Batteries},
author = {Li, Xing and Zheng, Jianming and Engelhard, Mark H. and Mei, Donghai and Li, Qiuyan and Jiao, Shuhong and Liu, Ning and Zhao, Wengao and Zhang, Ji -Guang and Xu, Wu},
abstractNote = {The effects of lithium imide and lithium orthoborate dual-salt electrolytes of different salt chemistries in carbonate solvents on the cycling stability of lithium (Li) metal batteries are systematically and comparatively investigated. Two imide salts (LiTFSI and LiFSI) and two orthoborate salts (LiBOB and LiDFOB) are chosen for this study and compared with the conventional LiPF6 salt. Density functional theory calculations indicate that the chemical and electrochemical stabilities follow the order of LiTFSI-LiBOB > LiTFSI-LiDFOB > LiFSI-LiDFOB > LiFSI-LiBOB. The experimental cycling stability of the Li metal batteries with the electrolytes follows the order as LiTFSI-LiBOB > LiTFSI-LiDFOB > LiFSI-LiDFOB > LiPF6 > LiFSI-LiBOB, which is in well accordance with the calculation results. The LiTFSI-LiBOB can effectively protect the Al substrate and form a more robust surface film on Li metal anode, while the LiFSI-LiBOB results in serious corrosion to the stainless steel cell case and a thicker and looser surface film on Li anode. In conclusion, the key findings of this work emphasize that the salt chemistry is critically important for enhancing the interfacial stability of Li metal anode and should be carefully manipulated in the development of high performance Li metal batteries.},
doi = {10.1021/acsami.7b15117},
journal = {ACS Applied Materials and Interfaces},
number = 3,
volume = 10,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

Save / Share:

Works referencing / citing this record:

Stable cycling of high-voltage lithium metal batteries in ether electrolytes
journal, July 2018


In situ formation of a multicomponent inorganic-rich SEI layer provides a fast charging and high specific energy Li-metal battery
journal, January 2019

  • Sun, Ho-Hyun; Dolocan, Andrei; Weeks, Jason A.
  • Journal of Materials Chemistry A, Vol. 7, Issue 30
  • DOI: 10.1039/c9ta05063a

Stable cycling of high-voltage lithium metal batteries in ether electrolytes
journal, July 2018


In situ formation of a multicomponent inorganic-rich SEI layer provides a fast charging and high specific energy Li-metal battery
journal, January 2019

  • Sun, Ho-Hyun; Dolocan, Andrei; Weeks, Jason A.
  • Journal of Materials Chemistry A, Vol. 7, Issue 30
  • DOI: 10.1039/c9ta05063a