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Title: Kinetics Tuning the Electrochemistry of Lithium Dendrites Formation in Lithium Batteries through Electrolytes

Lithium batteries are one of the most advance energy storage devices in the world and have attracted extensive research interests. However, lithium dendrite growth was a safety issue which handicapped the application of pure lithium metal in the negative electrode. In this paper, two solvents, propylene carbonate (PC) and 2-methyl-tetrahydrofuran (2MeTHF), and four Li + salts, LiPF 6, LiAsF 6, LiBF 4 and LiClO 4 were investigated in terms of their effects on the kinetics of lithium dendrite formation in eight electrolyte solutions. The kinetic parameters of charge transfer step (exchange current density, j 0, transfer coefficient, α) of Li +/Li redox system, the mass transfer parameters of Li + (transfer number of Li +, t Li+, diffusion coefficient of Li +, D Li+), and the conductivity (κ) of each electrolyte were studied separately. The results demonstrate that the solvents play a critical role in the measured j 0, t Li+, D Li+, and κ of the electrolyte, while the choice of Li + salts only slightly affect the measured parameters. Finally, the understanding of the kinetics will gain insight into the mechanism of lithium dendrite formation and provide guidelines to the future application of lithium metal.
Authors:
 [1] ;  [2] ;  [1] ; ORCiD logo [3] ;  [3] ;  [4] ;  [5] ; ORCiD logo [6]
  1. Beijing Inst. of Technology (China). School of Materials Science & Engineering
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division; The Ohio State Univ., Columbus, OH (United States). Dept. of Chemistry and Biochemistry
  3. Beijing Inst. of Technology (China). School of Materials Science & Engineering; The National High Technology Development Center of Green Materials, Beijing (China)
  4. Chinese Academy of Sciences (CAS), Beijing (China). Beijing Key Lab. of Ionic Liquids Clean Process. Key Lab. of Green Process and Engineering. State Key Lab. of Multiphase Complex Systems. Inst. of Process Engineering
  5. Beijing Inst. of Technology (China). School of Materials Science & Engineering; The National High Technology Development Center of Green Materials, Beijing (China); Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics
  6. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
Publication Date:
Grant/Contract Number:
AC02-06CH11357; 51404230; 21473011; 51402018; 2014CB932300; 2015CB251100
Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 9; Journal Issue: 8; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States); Beijing Inst. of Technology (China); Chinese Academy of Sciences (CAS), Beijing (China)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); National Natural Science Foundation of China (NNSFC); National Basic Research Program of China
Contributing Orgs:
The National High Technology Development Center of Green Materials, Beijing (China); The Ohio State Univ., Columbus, OH (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; 2-methyl-tetrahydrofuran; coulombic efficiency; lithium battery; lithium dendrites; propylene carbonate
OSTI Identifier:
1368563

Tao, Ran, Bi, Xuanxuan, Li, Shu, Yao, Ying, Wu, Feng, Wang, Qian, Zhang, Cunzhong, and Lu, Jun. Kinetics Tuning the Electrochemistry of Lithium Dendrites Formation in Lithium Batteries through Electrolytes. United States: N. p., Web. doi:10.1021/acsami.6b13859.
Tao, Ran, Bi, Xuanxuan, Li, Shu, Yao, Ying, Wu, Feng, Wang, Qian, Zhang, Cunzhong, & Lu, Jun. Kinetics Tuning the Electrochemistry of Lithium Dendrites Formation in Lithium Batteries through Electrolytes. United States. doi:10.1021/acsami.6b13859.
Tao, Ran, Bi, Xuanxuan, Li, Shu, Yao, Ying, Wu, Feng, Wang, Qian, Zhang, Cunzhong, and Lu, Jun. 2017. "Kinetics Tuning the Electrochemistry of Lithium Dendrites Formation in Lithium Batteries through Electrolytes". United States. doi:10.1021/acsami.6b13859. https://www.osti.gov/servlets/purl/1368563.
@article{osti_1368563,
title = {Kinetics Tuning the Electrochemistry of Lithium Dendrites Formation in Lithium Batteries through Electrolytes},
author = {Tao, Ran and Bi, Xuanxuan and Li, Shu and Yao, Ying and Wu, Feng and Wang, Qian and Zhang, Cunzhong and Lu, Jun},
abstractNote = {Lithium batteries are one of the most advance energy storage devices in the world and have attracted extensive research interests. However, lithium dendrite growth was a safety issue which handicapped the application of pure lithium metal in the negative electrode. In this paper, two solvents, propylene carbonate (PC) and 2-methyl-tetrahydrofuran (2MeTHF), and four Li+ salts, LiPF6, LiAsF6, LiBF4 and LiClO4 were investigated in terms of their effects on the kinetics of lithium dendrite formation in eight electrolyte solutions. The kinetic parameters of charge transfer step (exchange current density, j0, transfer coefficient, α) of Li+/Li redox system, the mass transfer parameters of Li+ (transfer number of Li+, tLi+, diffusion coefficient of Li+, DLi+), and the conductivity (κ) of each electrolyte were studied separately. The results demonstrate that the solvents play a critical role in the measured j0, tLi+, DLi+, and κ of the electrolyte, while the choice of Li+ salts only slightly affect the measured parameters. Finally, the understanding of the kinetics will gain insight into the mechanism of lithium dendrite formation and provide guidelines to the future application of lithium metal.},
doi = {10.1021/acsami.6b13859},
journal = {ACS Applied Materials and Interfaces},
number = 8,
volume = 9,
place = {United States},
year = {2017},
month = {2}
}