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Title: Failure Mechanism of Fast-Charged Lithium Metal Batteries in Liquid Electrolyte

Abstract

In recent years, lithium anode has re-attracted broad interest because of the necessity of employing lithium metal in the next-generation battery technologies such as lithium sulfur (Li-S) and lithium oxygen (Li-O2) batteries. Fast capacity degradation and safety issue associated with rechargeable lithium metal batteries have been reported, although the fundamental understanding on the failure mechanism of lithium metal at high charge rate is still under debate due to the complicated interfacial chemistry between lithium metal and electrolyte. Herein, we demonstrate that, at high current density, the quick growth of porous solid electrolyte interphase towards bulk lithium, instead of towards the separator, dramatically builds up the cell impedance that directly leads to the cell failure. Understanding the lithium metal failure mechanism is very critical to gauge the various approaches used to address the stability and safety issues associated with lithium metal anode. Otherwise, all cells will fail quickly at high rates before the observation of any positive effects that might be brought from adopting the new strategies to protect lithium.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1188887
Report Number(s):
PNNL-SA-101983
47414; CJ0100000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Advanced Energy Materials, 5(3):Article No. 1400993
Country of Publication:
United States
Language:
English
Subject:
Environmental Molecular Sciences Laboratory

Citation Formats

Lu, Dongping, Shao, Yuyan, Lozano, Terence J., Bennett, Wendy D., Graff, Gordon L., Polzin, Bryant, Zhang, Jiguang, Engelhard, Mark H., Saenz, Natalio T., Henderson, Wesley A., Bhattacharya, Priyanka, Liu, Jun, and Xiao, Jie. Failure Mechanism of Fast-Charged Lithium Metal Batteries in Liquid Electrolyte. United States: N. p., 2015. Web. doi:10.1002/AENM.201400993.
Lu, Dongping, Shao, Yuyan, Lozano, Terence J., Bennett, Wendy D., Graff, Gordon L., Polzin, Bryant, Zhang, Jiguang, Engelhard, Mark H., Saenz, Natalio T., Henderson, Wesley A., Bhattacharya, Priyanka, Liu, Jun, & Xiao, Jie. Failure Mechanism of Fast-Charged Lithium Metal Batteries in Liquid Electrolyte. United States. doi:10.1002/AENM.201400993.
Lu, Dongping, Shao, Yuyan, Lozano, Terence J., Bennett, Wendy D., Graff, Gordon L., Polzin, Bryant, Zhang, Jiguang, Engelhard, Mark H., Saenz, Natalio T., Henderson, Wesley A., Bhattacharya, Priyanka, Liu, Jun, and Xiao, Jie. Sun . "Failure Mechanism of Fast-Charged Lithium Metal Batteries in Liquid Electrolyte". United States. doi:10.1002/AENM.201400993.
@article{osti_1188887,
title = {Failure Mechanism of Fast-Charged Lithium Metal Batteries in Liquid Electrolyte},
author = {Lu, Dongping and Shao, Yuyan and Lozano, Terence J. and Bennett, Wendy D. and Graff, Gordon L. and Polzin, Bryant and Zhang, Jiguang and Engelhard, Mark H. and Saenz, Natalio T. and Henderson, Wesley A. and Bhattacharya, Priyanka and Liu, Jun and Xiao, Jie},
abstractNote = {In recent years, lithium anode has re-attracted broad interest because of the necessity of employing lithium metal in the next-generation battery technologies such as lithium sulfur (Li-S) and lithium oxygen (Li-O2) batteries. Fast capacity degradation and safety issue associated with rechargeable lithium metal batteries have been reported, although the fundamental understanding on the failure mechanism of lithium metal at high charge rate is still under debate due to the complicated interfacial chemistry between lithium metal and electrolyte. Herein, we demonstrate that, at high current density, the quick growth of porous solid electrolyte interphase towards bulk lithium, instead of towards the separator, dramatically builds up the cell impedance that directly leads to the cell failure. Understanding the lithium metal failure mechanism is very critical to gauge the various approaches used to address the stability and safety issues associated with lithium metal anode. Otherwise, all cells will fail quickly at high rates before the observation of any positive effects that might be brought from adopting the new strategies to protect lithium.},
doi = {10.1002/AENM.201400993},
journal = {Advanced Energy Materials, 5(3):Article No. 1400993},
number = ,
volume = ,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}