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Title: Design of a multi-functional gel polymer electrolyte with a 3D compact stacked polymer micro-sphere matrix for high-performance lithium metal batteries

Abstract

We report lithium metal batteries (LMBs) are considered as promising high energy density batteries. However, they still suffer from poor cyclability due to the instability of solid electrolyte interphases (SEIs) and Li dendrite issues. Herein, a novel 3D densely packed multifunctional crosslinked gel polymer electrolyte (PHGPE) has been synthesized by in situ copolymerization of pentaerythritol tetraacrylate and 2-hydroxyethyl acrylate in a liquid electrolyte via a thermal initiation method. Due to intermolecular hydrogen bonding in the frameworks, the PHGPE exhibits a 3D compact-stacked and crosslinked micro-sphere structure, which benefits the construction of homogeneous Li+ flux, enabling uniform Li plating/stripping and formation of robust SEIs onto the lithium electrode. Benefiting from the above advantages, symmetric Li cells in the PHGPE deliver excellent cyclabilities of 6000 h at a current density of 1 mA cm-2 (1 mA h cm-2) and 7700 h at 0.5 mA cm-2 (2 mA h cm-2). Moreover, the PHGPE has such a wide electrochemical window that it is compatible with both high-voltage LiNi0.8Co0.1Mn0.1O2 and sulfur cathodes to realize long cycle life. Additionally, a LiFePO4 based pouch size LMB also presents promising performance. Therefore, this study of the PHGPE has opened a new avenue for high-performance LMBs with excellent versatilitymore » and practicality.« less

Authors:
ORCiD logo [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]
  1. Jianghan Univ., Wuhan (China)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Natural Science Foundation of China; Jianghan University; USDOE
OSTI Identifier:
1872846
Alternate Identifier(s):
OSTI ID: 1870341
Grant/Contract Number:  
AC05-00OR22725; 51802122; JDGD-201811; JDGD-202007
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Chemistry. A
Additional Journal Information:
Journal Volume: 10; Journal Issue: 23; Journal ID: ISSN 2050-7488
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; gel polymer electrolyte; in-situ curing; lithium metal battery; solid electrolyte interphase; SEI; lithium dendrite

Citation Formats

Liang, Jiyuan, Tao, Runming, Tu, Ji, Guo, Chi, Du, Kang, Guo, Rui, Zhang, Wang, Liu, Xiaolang, Guo, Pingmei, Wang, Deyu, Dai, Sheng, and Sun, Xiao-Guang. Design of a multi-functional gel polymer electrolyte with a 3D compact stacked polymer micro-sphere matrix for high-performance lithium metal batteries. United States: N. p., 2022. Web. doi:10.1039/d2ta02085h.
Liang, Jiyuan, Tao, Runming, Tu, Ji, Guo, Chi, Du, Kang, Guo, Rui, Zhang, Wang, Liu, Xiaolang, Guo, Pingmei, Wang, Deyu, Dai, Sheng, & Sun, Xiao-Guang. Design of a multi-functional gel polymer electrolyte with a 3D compact stacked polymer micro-sphere matrix for high-performance lithium metal batteries. United States. https://doi.org/10.1039/d2ta02085h
Liang, Jiyuan, Tao, Runming, Tu, Ji, Guo, Chi, Du, Kang, Guo, Rui, Zhang, Wang, Liu, Xiaolang, Guo, Pingmei, Wang, Deyu, Dai, Sheng, and Sun, Xiao-Guang. Mon . "Design of a multi-functional gel polymer electrolyte with a 3D compact stacked polymer micro-sphere matrix for high-performance lithium metal batteries". United States. https://doi.org/10.1039/d2ta02085h. https://www.osti.gov/servlets/purl/1872846.
@article{osti_1872846,
title = {Design of a multi-functional gel polymer electrolyte with a 3D compact stacked polymer micro-sphere matrix for high-performance lithium metal batteries},
author = {Liang, Jiyuan and Tao, Runming and Tu, Ji and Guo, Chi and Du, Kang and Guo, Rui and Zhang, Wang and Liu, Xiaolang and Guo, Pingmei and Wang, Deyu and Dai, Sheng and Sun, Xiao-Guang},
abstractNote = {We report lithium metal batteries (LMBs) are considered as promising high energy density batteries. However, they still suffer from poor cyclability due to the instability of solid electrolyte interphases (SEIs) and Li dendrite issues. Herein, a novel 3D densely packed multifunctional crosslinked gel polymer electrolyte (PHGPE) has been synthesized by in situ copolymerization of pentaerythritol tetraacrylate and 2-hydroxyethyl acrylate in a liquid electrolyte via a thermal initiation method. Due to intermolecular hydrogen bonding in the frameworks, the PHGPE exhibits a 3D compact-stacked and crosslinked micro-sphere structure, which benefits the construction of homogeneous Li+ flux, enabling uniform Li plating/stripping and formation of robust SEIs onto the lithium electrode. Benefiting from the above advantages, symmetric Li cells in the PHGPE deliver excellent cyclabilities of 6000 h at a current density of 1 mA cm-2 (1 mA h cm-2) and 7700 h at 0.5 mA cm-2 (2 mA h cm-2). Moreover, the PHGPE has such a wide electrochemical window that it is compatible with both high-voltage LiNi0.8Co0.1Mn0.1O2 and sulfur cathodes to realize long cycle life. Additionally, a LiFePO4 based pouch size LMB also presents promising performance. Therefore, this study of the PHGPE has opened a new avenue for high-performance LMBs with excellent versatility and practicality.},
doi = {10.1039/d2ta02085h},
journal = {Journal of Materials Chemistry. A},
number = 23,
volume = 10,
place = {United States},
year = {Mon May 16 00:00:00 EDT 2022},
month = {Mon May 16 00:00:00 EDT 2022}
}

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