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Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties

Aqueous iron batteries are appealing candidates for large-scale energy storage due to their safety and low-cost aspects. However, the development of aqueous Fe batteries is hindered by their inadequate long-term cycling stability. Here, we propose the synthesis and application as positive electrode...

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Autores principales: Lv, Haiming, Wei, Zhiquan, Han, Cuiping, Yang, Xiaolong, Tang, Zijie, Zhang, Yantu, Zhi, Chunyi, Li, Hongfei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10229554/
https://www.ncbi.nlm.nih.gov/pubmed/37253727
http://dx.doi.org/10.1038/s41467-023-38890-y
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author Lv, Haiming
Wei, Zhiquan
Han, Cuiping
Yang, Xiaolong
Tang, Zijie
Zhang, Yantu
Zhi, Chunyi
Li, Hongfei
author_facet Lv, Haiming
Wei, Zhiquan
Han, Cuiping
Yang, Xiaolong
Tang, Zijie
Zhang, Yantu
Zhi, Chunyi
Li, Hongfei
author_sort Lv, Haiming
collection PubMed
description Aqueous iron batteries are appealing candidates for large-scale energy storage due to their safety and low-cost aspects. However, the development of aqueous Fe batteries is hindered by their inadequate long-term cycling stability. Here, we propose the synthesis and application as positive electrode active material of cross-linked polyaniline (C-PANI). We use melamine as the crosslinker to improve the electronical conductivity and electrochemical stability of the C-PANI. Indeed, when the C-PANI is tested in combination with a Fe metal negative electrode and 1 M iron trifluoromethanesulfonate (Fe(TOF)(2)) electrolyte solution, the coin cell can deliver a specific capacity of about 110 mAh g(−1) and an average discharge voltage of 0.55 V after 39,000 cycles at 25 A g(−1) with a test temperature of 28 °C ± 1 °C. Furthermore, mechanistic studies suggest that Fe(2+) ions are bonded to TOF(−) anions to form positively charged complexes Fe(TOF)(+), which are stored with protons in the C-PANI electrode structures. Finally, we also demonstrate the use of C-PANI in combination with a polymeric hydrogel electrolyte to produce a flexible reflective electrochromic lab-scale iron battery prototype.
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spelling pubmed-102295542023-06-01 Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties Lv, Haiming Wei, Zhiquan Han, Cuiping Yang, Xiaolong Tang, Zijie Zhang, Yantu Zhi, Chunyi Li, Hongfei Nat Commun Article Aqueous iron batteries are appealing candidates for large-scale energy storage due to their safety and low-cost aspects. However, the development of aqueous Fe batteries is hindered by their inadequate long-term cycling stability. Here, we propose the synthesis and application as positive electrode active material of cross-linked polyaniline (C-PANI). We use melamine as the crosslinker to improve the electronical conductivity and electrochemical stability of the C-PANI. Indeed, when the C-PANI is tested in combination with a Fe metal negative electrode and 1 M iron trifluoromethanesulfonate (Fe(TOF)(2)) electrolyte solution, the coin cell can deliver a specific capacity of about 110 mAh g(−1) and an average discharge voltage of 0.55 V after 39,000 cycles at 25 A g(−1) with a test temperature of 28 °C ± 1 °C. Furthermore, mechanistic studies suggest that Fe(2+) ions are bonded to TOF(−) anions to form positively charged complexes Fe(TOF)(+), which are stored with protons in the C-PANI electrode structures. Finally, we also demonstrate the use of C-PANI in combination with a polymeric hydrogel electrolyte to produce a flexible reflective electrochromic lab-scale iron battery prototype. Nature Publishing Group UK 2023-05-30 /pmc/articles/PMC10229554/ /pubmed/37253727 http://dx.doi.org/10.1038/s41467-023-38890-y 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 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
Lv, Haiming
Wei, Zhiquan
Han, Cuiping
Yang, Xiaolong
Tang, Zijie
Zhang, Yantu
Zhi, Chunyi
Li, Hongfei
Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties
title Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties
title_full Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties
title_fullStr Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties
title_full_unstemmed Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties
title_short Cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties
title_sort cross-linked polyaniline for production of long lifespan aqueous iron||organic batteries with electrochromic properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10229554/
https://www.ncbi.nlm.nih.gov/pubmed/37253727
http://dx.doi.org/10.1038/s41467-023-38890-y
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