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Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries

Chenyang Shi, Zhengguang Li, Mengran Wang Orcid Logo, Shu Hong, Bo Hong, Yaxuan Fu, Die Liu Orcid Logo, Rui Tan Orcid Logo, Pingshan Wang Orcid Logo, Yanqing Lai

Energy & Environmental Science

Swansea University Author: Rui Tan Orcid Logo

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DOI (Published version): 10.1039/d4ee05263c

Abstract

The deployment of lithium-ion batteries, essential for military and space exploration applications, faces restrictions due to safety issues and performance degradation stemming from the uncontrollable side reactions between electrolytes and electrodes, particularly at high temperatures. Current rese...

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Published in: Energy & Environmental Science
ISSN: 1754-5692 1754-5706
Published: Royal Society of Chemistry (RSC) 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa68990
first_indexed 2025-02-28T11:03:56Z
last_indexed 2025-03-29T05:27:35Z
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Current research focuses on interfacial modification and non-flammable electrolyte development, which fails to simultaneously improve both safety and cyclic performance. This work introduces a synergistic approach by incorporating weakly polar methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (MDFSA) and non-flammable 2-(2,2,2-trifluoroethoxy)-1,3,2-dioxaphospholane 2-oxide (TFP) to achieve a localized high-concentration electrolyte (LHCE) that can stabilize both anode and cathode interfaces and thus improve the cycling life and safety of batteries, particularly at evaluated temperatures. As a result, the NCM811|Gr pouch cell with MDFSA-containing LHCE exhibits a high capacity retention rate of 79.6% at 60 &#xB0;C after 1200 cycles due to the formation of thermally and structurally stable interfaces on the electrodes, outperforming pouch cells utilizing commercial carbonate-based (capacity retention: 23.7% after 125 cycles). 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spelling 2025-03-28T13:58:21.6194594 v2 68990 2025-02-28 Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries 774c33a0a76a9152ca86a156b5ae26ff 0009-0001-9278-7327 Rui Tan Rui Tan true false 2025-02-28 EAAS The deployment of lithium-ion batteries, essential for military and space exploration applications, faces restrictions due to safety issues and performance degradation stemming from the uncontrollable side reactions between electrolytes and electrodes, particularly at high temperatures. Current research focuses on interfacial modification and non-flammable electrolyte development, which fails to simultaneously improve both safety and cyclic performance. This work introduces a synergistic approach by incorporating weakly polar methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (MDFSA) and non-flammable 2-(2,2,2-trifluoroethoxy)-1,3,2-dioxaphospholane 2-oxide (TFP) to achieve a localized high-concentration electrolyte (LHCE) that can stabilize both anode and cathode interfaces and thus improve the cycling life and safety of batteries, particularly at evaluated temperatures. As a result, the NCM811|Gr pouch cell with MDFSA-containing LHCE exhibits a high capacity retention rate of 79.6% at 60 °C after 1200 cycles due to the formation of thermally and structurally stable interfaces on the electrodes, outperforming pouch cells utilizing commercial carbonate-based (capacity retention: 23.7% after 125 cycles). Additionally, pouch cells in the charging state also exhibit commendable safety performance, indicating potential for practical applications. Journal Article Energy &amp; Environmental Science 0 Royal Society of Chemistry (RSC) 1754-5692 1754-5706 13 2 2025 2025-02-13 10.1039/d4ee05263c COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University SU Library paid the OA fee (TA Institutional Deal) We gratefully acknowledge the National Natural Science Foundation of China (No. 52034011 and 52101278), the Young Elite Scientists Sponsorship Program by CAST (2023QNRC001), the Fundamental Research Funds for Central Universities of the Central South University (2022ZZTS0405) and the Central South University Research Programme of Advanced Interdisciplinary Studies (2023QYJC005). R. T. acknowledges the RSC researcher collaboration grant (C23-8220221815) and the Royce Industrial Collaboration Grant (RICP-R4-100029). 2025-03-28T13:58:21.6194594 2025-02-28T10:47:03.5977074 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Chenyang Shi 1 Zhengguang Li 2 Mengran Wang 0000-0002-0241-5643 3 Shu Hong 4 Bo Hong 5 Yaxuan Fu 6 Die Liu 0000-0002-3918-0569 7 Rui Tan 0009-0001-9278-7327 8 Pingshan Wang 0000-0002-1988-7604 9 Yanqing Lai 10 68990__33708__be8a3cb78cbb47c29f35419238d634e1.pdf 68990.VOR.pdf 2025-02-28T11:01:57.7579298 Output 3909963 application/pdf Version of Record true © The Royal Society of Chemistry 2025. This Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licence. true eng http://creativecommons.org/licenses/by-nc/3.0/
title Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries
spellingShingle Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries
Rui Tan
title_short Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries
title_full Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries
title_fullStr Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries
title_full_unstemmed Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries
title_sort Electrolyte tailoring and interfacial engineering for safe and high-temperature lithium-ion batteries
author_id_str_mv 774c33a0a76a9152ca86a156b5ae26ff
author_id_fullname_str_mv 774c33a0a76a9152ca86a156b5ae26ff_***_Rui Tan
author Rui Tan
author2 Chenyang Shi
Zhengguang Li
Mengran Wang
Shu Hong
Bo Hong
Yaxuan Fu
Die Liu
Rui Tan
Pingshan Wang
Yanqing Lai
format Journal article
container_title Energy &amp; Environmental Science
container_volume 0
publishDate 2025
institution Swansea University
issn 1754-5692
1754-5706
doi_str_mv 10.1039/d4ee05263c
publisher Royal Society of Chemistry (RSC)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description The deployment of lithium-ion batteries, essential for military and space exploration applications, faces restrictions due to safety issues and performance degradation stemming from the uncontrollable side reactions between electrolytes and electrodes, particularly at high temperatures. Current research focuses on interfacial modification and non-flammable electrolyte development, which fails to simultaneously improve both safety and cyclic performance. This work introduces a synergistic approach by incorporating weakly polar methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (MDFSA) and non-flammable 2-(2,2,2-trifluoroethoxy)-1,3,2-dioxaphospholane 2-oxide (TFP) to achieve a localized high-concentration electrolyte (LHCE) that can stabilize both anode and cathode interfaces and thus improve the cycling life and safety of batteries, particularly at evaluated temperatures. As a result, the NCM811|Gr pouch cell with MDFSA-containing LHCE exhibits a high capacity retention rate of 79.6% at 60 °C after 1200 cycles due to the formation of thermally and structurally stable interfaces on the electrodes, outperforming pouch cells utilizing commercial carbonate-based (capacity retention: 23.7% after 125 cycles). Additionally, pouch cells in the charging state also exhibit commendable safety performance, indicating potential for practical applications.
published_date 2025-02-13T08:18:48Z
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score 11.058331

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