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Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries

Aqueous zinc metal batteries are a viable candidate for cost-effective energy storage. However, the cycle life of the cell is adversely affected by the morphological evolution of the metal electrode surface upon prolonged cycling. Here, we investigate different electrochemical protocols to favour th...

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Detalles Bibliográficos
Autores principales: Li, Qing, Chen, Ao, Wang, Donghong, Zhao, Yuwei, Wang, Xiaoqi, Jin, Xu, Xiong, Bo, Zhi, Chunyi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9237080/
https://www.ncbi.nlm.nih.gov/pubmed/35760974
http://dx.doi.org/10.1038/s41467-022-31461-7
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author Li, Qing
Chen, Ao
Wang, Donghong
Zhao, Yuwei
Wang, Xiaoqi
Jin, Xu
Xiong, Bo
Zhi, Chunyi
author_facet Li, Qing
Chen, Ao
Wang, Donghong
Zhao, Yuwei
Wang, Xiaoqi
Jin, Xu
Xiong, Bo
Zhi, Chunyi
author_sort Li, Qing
collection PubMed
description Aqueous zinc metal batteries are a viable candidate for cost-effective energy storage. However, the cycle life of the cell is adversely affected by the morphological evolution of the metal electrode surface upon prolonged cycling. Here, we investigate different electrochemical protocols to favour the formation of stable zinc metal electrode surface morphologies. By coupling electrochemical and optical microscopy measurements, we demonstrate that an initial zinc deposition on the metal electrode allows homogeneous stripping and plating processes during prolonged cycling in symmetric Zn||Zn cell. Interestingly, when an initially plated zinc metal electrode is tested in combination with a manganese dioxide-based positive electrode and a two molar zinc sulfate aqueous electrolyte solution in coin cell configuration, a specific discharge capacity of about 90 mAh g(−1) can be delivered after 2000 cycles at around 5.6 mA cm(−2) and 25 °C.
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spelling pubmed-92370802022-06-29 Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries Li, Qing Chen, Ao Wang, Donghong Zhao, Yuwei Wang, Xiaoqi Jin, Xu Xiong, Bo Zhi, Chunyi Nat Commun Article Aqueous zinc metal batteries are a viable candidate for cost-effective energy storage. However, the cycle life of the cell is adversely affected by the morphological evolution of the metal electrode surface upon prolonged cycling. Here, we investigate different electrochemical protocols to favour the formation of stable zinc metal electrode surface morphologies. By coupling electrochemical and optical microscopy measurements, we demonstrate that an initial zinc deposition on the metal electrode allows homogeneous stripping and plating processes during prolonged cycling in symmetric Zn||Zn cell. Interestingly, when an initially plated zinc metal electrode is tested in combination with a manganese dioxide-based positive electrode and a two molar zinc sulfate aqueous electrolyte solution in coin cell configuration, a specific discharge capacity of about 90 mAh g(−1) can be delivered after 2000 cycles at around 5.6 mA cm(−2) and 25 °C. Nature Publishing Group UK 2022-06-27 /pmc/articles/PMC9237080/ /pubmed/35760974 http://dx.doi.org/10.1038/s41467-022-31461-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Li, Qing
Chen, Ao
Wang, Donghong
Zhao, Yuwei
Wang, Xiaoqi
Jin, Xu
Xiong, Bo
Zhi, Chunyi
Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries
title Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries
title_full Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries
title_fullStr Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries
title_full_unstemmed Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries
title_short Tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries
title_sort tailoring the metal electrode morphology via electrochemical protocol optimization for long-lasting aqueous zinc batteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9237080/
https://www.ncbi.nlm.nih.gov/pubmed/35760974
http://dx.doi.org/10.1038/s41467-022-31461-7
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