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Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes

Owing to the merits of low cost, high safety and environmental benignity, rechargeable aqueous Zn-based batteries (ZBs) have gained tremendous attention in recent years. Nevertheless, the poor reversibility of Zn anodes that originates from dendrite growth, surface passivation and corrosion, severel...

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Autores principales: Wang, Ziqi, Dong, Liubing, Huang, Weiyuan, Jia, Hao, Zhao, Qinghe, Wang, Yidi, Fei, Bin, Pan, Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8187534/
https://www.ncbi.nlm.nih.gov/pubmed/34138302
http://dx.doi.org/10.1007/s40820-021-00594-7
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author Wang, Ziqi
Dong, Liubing
Huang, Weiyuan
Jia, Hao
Zhao, Qinghe
Wang, Yidi
Fei, Bin
Pan, Feng
author_facet Wang, Ziqi
Dong, Liubing
Huang, Weiyuan
Jia, Hao
Zhao, Qinghe
Wang, Yidi
Fei, Bin
Pan, Feng
author_sort Wang, Ziqi
collection PubMed
description Owing to the merits of low cost, high safety and environmental benignity, rechargeable aqueous Zn-based batteries (ZBs) have gained tremendous attention in recent years. Nevertheless, the poor reversibility of Zn anodes that originates from dendrite growth, surface passivation and corrosion, severely hinders the further development of ZBs. To tackle these issues, here we report a Janus separator based on a Zn-ion conductive metal–organic framework (MOF) and reduced graphene oxide (rGO), which is able to regulate uniform Zn(2+) flux and electron conduction simultaneously during battery operation. Facilitated by the MOF/rGO bifunctional interlayers, the Zn anodes demonstrate stable plating/stripping behavior (over 500 h at 1 mA cm(−2)), high Coulombic efficiency (99.2% at 2 mA cm(−2) after 100 cycles) and reduced redox barrier. Moreover, it is also found that the Zn corrosion can be effectively retarded through diminishing the potential discrepancy on Zn surface. Such a separator engineering also saliently promotes the overall performance of Zn|MnO(2) full cells, which deliver nearly 100% capacity retention after 2000 cycles at 4 A g(−1) and high power density over 10 kW kg(−1). This work provides a feasible route to the high-performance Zn anodes for ZBs. [Image: see text] SUPPLEMENTARY INFORMATION: The online version of this article (10.1007/s40820-021-00594-7).
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spelling pubmed-81875342021-06-14 Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes Wang, Ziqi Dong, Liubing Huang, Weiyuan Jia, Hao Zhao, Qinghe Wang, Yidi Fei, Bin Pan, Feng Nanomicro Lett Article Owing to the merits of low cost, high safety and environmental benignity, rechargeable aqueous Zn-based batteries (ZBs) have gained tremendous attention in recent years. Nevertheless, the poor reversibility of Zn anodes that originates from dendrite growth, surface passivation and corrosion, severely hinders the further development of ZBs. To tackle these issues, here we report a Janus separator based on a Zn-ion conductive metal–organic framework (MOF) and reduced graphene oxide (rGO), which is able to regulate uniform Zn(2+) flux and electron conduction simultaneously during battery operation. Facilitated by the MOF/rGO bifunctional interlayers, the Zn anodes demonstrate stable plating/stripping behavior (over 500 h at 1 mA cm(−2)), high Coulombic efficiency (99.2% at 2 mA cm(−2) after 100 cycles) and reduced redox barrier. Moreover, it is also found that the Zn corrosion can be effectively retarded through diminishing the potential discrepancy on Zn surface. Such a separator engineering also saliently promotes the overall performance of Zn|MnO(2) full cells, which deliver nearly 100% capacity retention after 2000 cycles at 4 A g(−1) and high power density over 10 kW kg(−1). This work provides a feasible route to the high-performance Zn anodes for ZBs. [Image: see text] SUPPLEMENTARY INFORMATION: The online version of this article (10.1007/s40820-021-00594-7). Springer Nature Singapore 2021-02-15 /pmc/articles/PMC8187534/ /pubmed/34138302 http://dx.doi.org/10.1007/s40820-021-00594-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wang, Ziqi
Dong, Liubing
Huang, Weiyuan
Jia, Hao
Zhao, Qinghe
Wang, Yidi
Fei, Bin
Pan, Feng
Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes
title Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes
title_full Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes
title_fullStr Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes
title_full_unstemmed Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes
title_short Simultaneously Regulating Uniform Zn(2+) Flux and Electron Conduction by MOF/rGO Interlayers for High-Performance Zn Anodes
title_sort simultaneously regulating uniform zn(2+) flux and electron conduction by mof/rgo interlayers for high-performance zn anodes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8187534/
https://www.ncbi.nlm.nih.gov/pubmed/34138302
http://dx.doi.org/10.1007/s40820-021-00594-7
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