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Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering

Filtering capacitors with wide operating voltage range are essential for smoothing ripples in line-powered system, which are still unsatisfactory due to low energy density and limited working voltage scopes. Herein, we report an aqueous hybrid electrochemical capacitor with areal specific energy den...

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Autores principales: Li, Zhou, Wang, Xiaopeng, Zhao, Lingyu, Chi, Fengyao, Gao, Chang, Wang, Ying, Yan, Mengdan, Zhou, Qian, Zhao, Miaomiao, Wang, Xinyang, Wang, Jiaqi, Yuan, Man, Wu, Mingmao, Wang, Lixia, Zhao, Yang, Qu, Liangti
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9606111/
https://www.ncbi.nlm.nih.gov/pubmed/36289214
http://dx.doi.org/10.1038/s41467-022-34082-2
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author Li, Zhou
Wang, Xiaopeng
Zhao, Lingyu
Chi, Fengyao
Gao, Chang
Wang, Ying
Yan, Mengdan
Zhou, Qian
Zhao, Miaomiao
Wang, Xinyang
Wang, Jiaqi
Yuan, Man
Wu, Mingmao
Wang, Lixia
Zhao, Yang
Qu, Liangti
author_facet Li, Zhou
Wang, Xiaopeng
Zhao, Lingyu
Chi, Fengyao
Gao, Chang
Wang, Ying
Yan, Mengdan
Zhou, Qian
Zhao, Miaomiao
Wang, Xinyang
Wang, Jiaqi
Yuan, Man
Wu, Mingmao
Wang, Lixia
Zhao, Yang
Qu, Liangti
author_sort Li, Zhou
collection PubMed
description Filtering capacitors with wide operating voltage range are essential for smoothing ripples in line-powered system, which are still unsatisfactory due to low energy density and limited working voltage scopes. Herein, we report an aqueous hybrid electrochemical capacitor with areal specific energy density of 1.29 mF V(2) cm(−2) at 120 Hz, greater than common aqueous ones. Interestingly, it can be easily integrated at scale to show excellent flexibility, controllable and stable filtering performance, in which an integrated device (e.g., seven units in series) exhibits fluctuation of 96 mV, 10 times smaller than an aluminum electrolytic capacitor with similar capacitance. A record-high 1,000 V can also be achieved after integrating 670 units, exceeding those reported so far, and about 1.5 times of commercial bulk aluminum electrolytic capacitors (~700 V). This work opens up a new insight for promising applications in multiple electricity transmission systems that requiring high smoothness under harsh voltage.
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spelling pubmed-96061112022-10-28 Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering Li, Zhou Wang, Xiaopeng Zhao, Lingyu Chi, Fengyao Gao, Chang Wang, Ying Yan, Mengdan Zhou, Qian Zhao, Miaomiao Wang, Xinyang Wang, Jiaqi Yuan, Man Wu, Mingmao Wang, Lixia Zhao, Yang Qu, Liangti Nat Commun Article Filtering capacitors with wide operating voltage range are essential for smoothing ripples in line-powered system, which are still unsatisfactory due to low energy density and limited working voltage scopes. Herein, we report an aqueous hybrid electrochemical capacitor with areal specific energy density of 1.29 mF V(2) cm(−2) at 120 Hz, greater than common aqueous ones. Interestingly, it can be easily integrated at scale to show excellent flexibility, controllable and stable filtering performance, in which an integrated device (e.g., seven units in series) exhibits fluctuation of 96 mV, 10 times smaller than an aluminum electrolytic capacitor with similar capacitance. A record-high 1,000 V can also be achieved after integrating 670 units, exceeding those reported so far, and about 1.5 times of commercial bulk aluminum electrolytic capacitors (~700 V). This work opens up a new insight for promising applications in multiple electricity transmission systems that requiring high smoothness under harsh voltage. Nature Publishing Group UK 2022-10-26 /pmc/articles/PMC9606111/ /pubmed/36289214 http://dx.doi.org/10.1038/s41467-022-34082-2 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, Zhou
Wang, Xiaopeng
Zhao, Lingyu
Chi, Fengyao
Gao, Chang
Wang, Ying
Yan, Mengdan
Zhou, Qian
Zhao, Miaomiao
Wang, Xinyang
Wang, Jiaqi
Yuan, Man
Wu, Mingmao
Wang, Lixia
Zhao, Yang
Qu, Liangti
Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering
title Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering
title_full Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering
title_fullStr Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering
title_full_unstemmed Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering
title_short Aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering
title_sort aqueous hybrid electrochemical capacitors with ultra-high energy density approaching for thousand-volts alternating current line filtering
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9606111/
https://www.ncbi.nlm.nih.gov/pubmed/36289214
http://dx.doi.org/10.1038/s41467-022-34082-2
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