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Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery

Aqueous copper-based batteries have many favourable properties and have thus attracted considerable attention, but their application is limited by their low operating voltage originating from the high potential of copper negative electrode (0.34 V vs. standard hydrogen electrode). Herein, we propose...

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Autores principales: Zhang, Xiangyong, Wei, Hua, Li, Shizhen, Ren, Baohui, Jiang, Jingjing, Qu, Guangmeng, Lv, Haiming, Liang, Guojin, Chen, Guangming, Zhi, Chunyi, Li, Hongfei, Liu, Zhuoxin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10598032/
https://www.ncbi.nlm.nih.gov/pubmed/37875485
http://dx.doi.org/10.1038/s41467-023-42549-z
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author Zhang, Xiangyong
Wei, Hua
Li, Shizhen
Ren, Baohui
Jiang, Jingjing
Qu, Guangmeng
Lv, Haiming
Liang, Guojin
Chen, Guangming
Zhi, Chunyi
Li, Hongfei
Liu, Zhuoxin
author_facet Zhang, Xiangyong
Wei, Hua
Li, Shizhen
Ren, Baohui
Jiang, Jingjing
Qu, Guangmeng
Lv, Haiming
Liang, Guojin
Chen, Guangming
Zhi, Chunyi
Li, Hongfei
Liu, Zhuoxin
author_sort Zhang, Xiangyong
collection PubMed
description Aqueous copper-based batteries have many favourable properties and have thus attracted considerable attention, but their application is limited by their low operating voltage originating from the high potential of copper negative electrode (0.34 V vs. standard hydrogen electrode). Herein, we propose a coordination strategy for reducing the intrinsic negative electrode redox potential in aqueous copper-based batteries and thus improving their operating voltage. This is achieved by establishing an appropriate coordination environment through the electrolyte tailoring via Cl(−) ions. When coordinated with chlorine, the intermediate Cu(+) ions in aqueous electrolytes are successfully stabilized and the electrochemical process is decoupled into two separate redox reactions involving Cu(2+)/Cu(+) and Cu(+)/Cu(0); Cu(+)/Cu(0) results in a redox potential approximately 0.3 V lower than that for Cu(2+)/Cu(0). Compared to the coordination with water, the coordination with chlorine also results in higher copper utilization, more rapid redox kinetics, and superior cycle stability. An aqueous copper-chlorine battery, harnessing Cl(−)/Cl(0) redox reaction at the positive electrode, is discovered to have a high discharge voltage of 1.3 V, and retains 77.4% of initial capacity after 10,000 cycles. This work may open up an avenue to boosting the voltage and energy of aqueous copper batteries.
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spelling pubmed-105980322023-10-26 Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery Zhang, Xiangyong Wei, Hua Li, Shizhen Ren, Baohui Jiang, Jingjing Qu, Guangmeng Lv, Haiming Liang, Guojin Chen, Guangming Zhi, Chunyi Li, Hongfei Liu, Zhuoxin Nat Commun Article Aqueous copper-based batteries have many favourable properties and have thus attracted considerable attention, but their application is limited by their low operating voltage originating from the high potential of copper negative electrode (0.34 V vs. standard hydrogen electrode). Herein, we propose a coordination strategy for reducing the intrinsic negative electrode redox potential in aqueous copper-based batteries and thus improving their operating voltage. This is achieved by establishing an appropriate coordination environment through the electrolyte tailoring via Cl(−) ions. When coordinated with chlorine, the intermediate Cu(+) ions in aqueous electrolytes are successfully stabilized and the electrochemical process is decoupled into two separate redox reactions involving Cu(2+)/Cu(+) and Cu(+)/Cu(0); Cu(+)/Cu(0) results in a redox potential approximately 0.3 V lower than that for Cu(2+)/Cu(0). Compared to the coordination with water, the coordination with chlorine also results in higher copper utilization, more rapid redox kinetics, and superior cycle stability. An aqueous copper-chlorine battery, harnessing Cl(−)/Cl(0) redox reaction at the positive electrode, is discovered to have a high discharge voltage of 1.3 V, and retains 77.4% of initial capacity after 10,000 cycles. This work may open up an avenue to boosting the voltage and energy of aqueous copper batteries. Nature Publishing Group UK 2023-10-24 /pmc/articles/PMC10598032/ /pubmed/37875485 http://dx.doi.org/10.1038/s41467-023-42549-z Text en © The Author(s) 2023 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 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
Zhang, Xiangyong
Wei, Hua
Li, Shizhen
Ren, Baohui
Jiang, Jingjing
Qu, Guangmeng
Lv, Haiming
Liang, Guojin
Chen, Guangming
Zhi, Chunyi
Li, Hongfei
Liu, Zhuoxin
Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery
title Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery
title_full Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery
title_fullStr Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery
title_full_unstemmed Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery
title_short Manipulating coordination environment for a high-voltage aqueous copper-chlorine battery
title_sort manipulating coordination environment for a high-voltage aqueous copper-chlorine battery
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10598032/
https://www.ncbi.nlm.nih.gov/pubmed/37875485
http://dx.doi.org/10.1038/s41467-023-42549-z
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