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Engineering a passivating electric double layer for high performance lithium metal batteries
In electrochemical devices, such as batteries, traditional electric double layer (EDL) theory holds that cations in the cathode/electrolyte interface will be repelled during charging, leaving a large amount of free solvents. This promotes the continuous anodic decomposition of the electrolyte, leadi...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9018679/ https://www.ncbi.nlm.nih.gov/pubmed/35440573 http://dx.doi.org/10.1038/s41467-022-29761-z |
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author | Zhang, Weili Lu, Yang Wan, Lei Zhou, Pan Xia, Yingchun Yan, Shuaishuai Chen, Xiaoxia Zhou, Hangyu Dong, Hao Liu, Kai |
author_facet | Zhang, Weili Lu, Yang Wan, Lei Zhou, Pan Xia, Yingchun Yan, Shuaishuai Chen, Xiaoxia Zhou, Hangyu Dong, Hao Liu, Kai |
author_sort | Zhang, Weili |
collection | PubMed |
description | In electrochemical devices, such as batteries, traditional electric double layer (EDL) theory holds that cations in the cathode/electrolyte interface will be repelled during charging, leaving a large amount of free solvents. This promotes the continuous anodic decomposition of the electrolyte, leading to a limited operation voltage and cycle life of the devices. In this work, we design a new EDL structure with adaptive and passivating properties. It is enabled by adding functional anionic additives in the electrolyte, which can selectively bind with cations and free solvents, forming unique cation-rich and branch-chain like supramolecular polymer structures with high electrochemical stability in the EDL inner layer. Due to this design, the anodic decomposition of ether-based electrolytes is significantly suppressed in the high voltage cathodes and the battery shows outstanding performances such as super-fast charging/discharging and ultra-low temperature applications, which is extremely hard in conventional electrolyte design principle. This unconventional EDL structure breaks the inherent perception of the classical EDL rearrangement mechanism and greatly improve electrochemical performances of the device. |
format | Online Article Text |
id | pubmed-9018679 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-90186792022-04-28 Engineering a passivating electric double layer for high performance lithium metal batteries Zhang, Weili Lu, Yang Wan, Lei Zhou, Pan Xia, Yingchun Yan, Shuaishuai Chen, Xiaoxia Zhou, Hangyu Dong, Hao Liu, Kai Nat Commun Article In electrochemical devices, such as batteries, traditional electric double layer (EDL) theory holds that cations in the cathode/electrolyte interface will be repelled during charging, leaving a large amount of free solvents. This promotes the continuous anodic decomposition of the electrolyte, leading to a limited operation voltage and cycle life of the devices. In this work, we design a new EDL structure with adaptive and passivating properties. It is enabled by adding functional anionic additives in the electrolyte, which can selectively bind with cations and free solvents, forming unique cation-rich and branch-chain like supramolecular polymer structures with high electrochemical stability in the EDL inner layer. Due to this design, the anodic decomposition of ether-based electrolytes is significantly suppressed in the high voltage cathodes and the battery shows outstanding performances such as super-fast charging/discharging and ultra-low temperature applications, which is extremely hard in conventional electrolyte design principle. This unconventional EDL structure breaks the inherent perception of the classical EDL rearrangement mechanism and greatly improve electrochemical performances of the device. Nature Publishing Group UK 2022-04-19 /pmc/articles/PMC9018679/ /pubmed/35440573 http://dx.doi.org/10.1038/s41467-022-29761-z 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 Zhang, Weili Lu, Yang Wan, Lei Zhou, Pan Xia, Yingchun Yan, Shuaishuai Chen, Xiaoxia Zhou, Hangyu Dong, Hao Liu, Kai Engineering a passivating electric double layer for high performance lithium metal batteries |
title | Engineering a passivating electric double layer for high performance lithium metal batteries |
title_full | Engineering a passivating electric double layer for high performance lithium metal batteries |
title_fullStr | Engineering a passivating electric double layer for high performance lithium metal batteries |
title_full_unstemmed | Engineering a passivating electric double layer for high performance lithium metal batteries |
title_short | Engineering a passivating electric double layer for high performance lithium metal batteries |
title_sort | engineering a passivating electric double layer for high performance lithium metal batteries |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9018679/ https://www.ncbi.nlm.nih.gov/pubmed/35440573 http://dx.doi.org/10.1038/s41467-022-29761-z |
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