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Title: Behavior of Lithium Metal Anodes under Various Capacity Utilization and High Current Density in Lithium Metal Batteries

Abstract

We report that lithium (Li) metal batteries (LMBs) have recently attracted extensive interest in the energy-storage field after silence from the public view for several decades. However, many challenges still need to be overcome before their practical application, especially those that are related to the interfacial instability of Li metal anodes. Here, we reveal for the first time that the thickness of the degradation layer on the metallic Li anode surface shows a linear relationship with Li areal capacity utilization up to 4.0 mAh cm -2 in a practical LMB system. The increase in Li capacity utilization in each cycle causes variations in the morphology and composition of the degradation layer on the Li anode. Under high Li capacity utilization, the current density for charge (i.e., Li deposition) is identified to be a key factor controlling the corrosion of the Li metal anode. Lastly, these fundamental findings provide new perspectives for the development of rechargeable LMBs.

Authors:
 [1];  [2];  [2];  [3];  [4];  [1];  [2];  [2]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Energy and Environment Directorate; University of Science and Technology of China, Hefei (China). Department of Materials Science and Engineering
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Energy and Environment Directorate
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Energy and Environment Directorate ; Southwest Petroleum University, Chengdu (China). School of Materials Science and Engineering
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1413509
Report Number(s):
PNNL-SA-125205
Journal ID: ISSN 2542-4351; PII: S2542435117301319; TRN: US1800442
Grant/Contract Number:
AC05-76RL01830; AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Joule
Additional Journal Information:
Journal Volume: 2; Journal Issue: 1; Journal ID: ISSN 2542-4351
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; lithium capacity utilization; degradation layer; electrode loading; cycling performance; lithium metal battery

Citation Formats

Jiao, Shuhong, Zheng, Jianming, Li, Qiuyan, Li, Xing, Engelhard, Mark H., Cao, Ruiguo, Zhang, Ji-Guang, and Xu, Wu. Behavior of Lithium Metal Anodes under Various Capacity Utilization and High Current Density in Lithium Metal Batteries. United States: N. p., 2017. Web. doi:10.1016/J.JOULE.2017.10.007.
Jiao, Shuhong, Zheng, Jianming, Li, Qiuyan, Li, Xing, Engelhard, Mark H., Cao, Ruiguo, Zhang, Ji-Guang, & Xu, Wu. Behavior of Lithium Metal Anodes under Various Capacity Utilization and High Current Density in Lithium Metal Batteries. United States. doi:10.1016/J.JOULE.2017.10.007.
Jiao, Shuhong, Zheng, Jianming, Li, Qiuyan, Li, Xing, Engelhard, Mark H., Cao, Ruiguo, Zhang, Ji-Guang, and Xu, Wu. Mon . "Behavior of Lithium Metal Anodes under Various Capacity Utilization and High Current Density in Lithium Metal Batteries". United States. doi:10.1016/J.JOULE.2017.10.007.
@article{osti_1413509,
title = {Behavior of Lithium Metal Anodes under Various Capacity Utilization and High Current Density in Lithium Metal Batteries},
author = {Jiao, Shuhong and Zheng, Jianming and Li, Qiuyan and Li, Xing and Engelhard, Mark H. and Cao, Ruiguo and Zhang, Ji-Guang and Xu, Wu},
abstractNote = {We report that lithium (Li) metal batteries (LMBs) have recently attracted extensive interest in the energy-storage field after silence from the public view for several decades. However, many challenges still need to be overcome before their practical application, especially those that are related to the interfacial instability of Li metal anodes. Here, we reveal for the first time that the thickness of the degradation layer on the metallic Li anode surface shows a linear relationship with Li areal capacity utilization up to 4.0 mAh cm-2 in a practical LMB system. The increase in Li capacity utilization in each cycle causes variations in the morphology and composition of the degradation layer on the Li anode. Under high Li capacity utilization, the current density for charge (i.e., Li deposition) is identified to be a key factor controlling the corrosion of the Li metal anode. Lastly, these fundamental findings provide new perspectives for the development of rechargeable LMBs.},
doi = {10.1016/J.JOULE.2017.10.007},
journal = {Joule},
number = 1,
volume = 2,
place = {United States},
year = {Mon Nov 06 00:00:00 EST 2017},
month = {Mon Nov 06 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on November 6, 2018
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