Carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery
The shuttle effect caused by polysulfides remains a major issue hindering the application of lithium–sulfur (Li-S) batteries. In this work, a composite of organically modified carbon nanotube (CNT) and zirconia (ZrO2) nanoparticles is synthesized and used as a surface coating on a commercial Celgard...
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doaj-41715c50c0e840cfb9053ede8c77ac2a2020-11-24T21:08:04ZengAIP Publishing LLCAIP Advances2158-32262018-10-01810105315105315-910.1063/1.5044486054810ADVCarbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur batteryBin Liu0Shan Wang1Xiaomeng Wu2Zhikang Liu3Zhaodongfang Gao4Chuanbin Li5Quanling Yang6Guo-Hua Hu7Chuanxi Xiong8State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaLaboratory of Reactions and Process Engineering (LRGP, CNRS UMR 7274), University of Lorraine–CNRS, 1 rue Grandville, BP 20451, 54001 Nancy, FranceState Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaThe shuttle effect caused by polysulfides remains a major issue hindering the application of lithium–sulfur (Li-S) batteries. In this work, a composite of organically modified carbon nanotube (CNT) and zirconia (ZrO2) nanoparticles is synthesized and used as a surface coating on a commercial Celgard separator to restrain the shuttle effect and improve battery performance. Electrolyte uptake and water contact angle measurements show that the CNT/ZrO2 composite-coated separator has an enhanced electrolyte wettability. Thermal shrinkage results reveal an improvement in the stability of the coated separators, especially at high temperatures. Electrochemical measurements also show the effectiveness of the CNT/ZrO2 composite-coated separator in a Li–S battery. The initial discharge capacity is improved after coating, as is the capacity retention rate. In addition, a battery with a CNT/ZrO2 composite-coated separator attains an impressive capacity reversibility as high as 91.7% in a rate performance test from 0.1 to 2 C. The composite coating restrains the shuttle effect effectively and improves the thermal shrinkage properties of the separator. Thus, the use of a CNT/ZrO2 composite-coated separator should improve the prospects for practical application of Li–S batteries.http://dx.doi.org/10.1063/1.5044486 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bin Liu Shan Wang Xiaomeng Wu Zhikang Liu Zhaodongfang Gao Chuanbin Li Quanling Yang Guo-Hua Hu Chuanxi Xiong |
spellingShingle |
Bin Liu Shan Wang Xiaomeng Wu Zhikang Liu Zhaodongfang Gao Chuanbin Li Quanling Yang Guo-Hua Hu Chuanxi Xiong Carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery AIP Advances |
author_facet |
Bin Liu Shan Wang Xiaomeng Wu Zhikang Liu Zhaodongfang Gao Chuanbin Li Quanling Yang Guo-Hua Hu Chuanxi Xiong |
author_sort |
Bin Liu |
title |
Carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery |
title_short |
Carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery |
title_full |
Carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery |
title_fullStr |
Carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery |
title_full_unstemmed |
Carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery |
title_sort |
carbon nanotube/zirconia composite-coated separator for a high-performance rechargeable lithium–sulfur battery |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2018-10-01 |
description |
The shuttle effect caused by polysulfides remains a major issue hindering the application of lithium–sulfur (Li-S) batteries. In this work, a composite of organically modified carbon nanotube (CNT) and zirconia (ZrO2) nanoparticles is synthesized and used as a surface coating on a commercial Celgard separator to restrain the shuttle effect and improve battery performance. Electrolyte uptake and water contact angle measurements show that the CNT/ZrO2 composite-coated separator has an enhanced electrolyte wettability. Thermal shrinkage results reveal an improvement in the stability of the coated separators, especially at high temperatures. Electrochemical measurements also show the effectiveness of the CNT/ZrO2 composite-coated separator in a Li–S battery. The initial discharge capacity is improved after coating, as is the capacity retention rate. In addition, a battery with a CNT/ZrO2 composite-coated separator attains an impressive capacity reversibility as high as 91.7% in a rate performance test from 0.1 to 2 C. The composite coating restrains the shuttle effect effectively and improves the thermal shrinkage properties of the separator. Thus, the use of a CNT/ZrO2 composite-coated separator should improve the prospects for practical application of Li–S batteries. |
url |
http://dx.doi.org/10.1063/1.5044486 |
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