Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode

Highlights A novel electrolyte design strategy for high voltage and high safe LiCoO2 (LCO) cathode based on highest occupied molecular orbital and LCO absorption energy descriptor was proposed. The irreversible phase transformation was restricted by the LiF rich LCO/electrolyte interface. The well d...

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Main Authors: Long Chen, Xin He, Yiqing Chen, Youmin Hou, Yujie Zhang, Kangli Wang, Xinping Ai, Yuliang Cao, Zhongxue Chen
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Nano-Micro Letters
Subjects:
Online Access:https://doi.org/10.1007/s40820-025-01694-4
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author Long Chen
Xin He
Yiqing Chen
Youmin Hou
Yujie Zhang
Kangli Wang
Xinping Ai
Yuliang Cao
Zhongxue Chen
author_facet Long Chen
Xin He
Yiqing Chen
Youmin Hou
Yujie Zhang
Kangli Wang
Xinping Ai
Yuliang Cao
Zhongxue Chen
author_sort Long Chen
collection DOAJ
description Highlights A novel electrolyte design strategy for high voltage and high safe LiCoO2 (LCO) cathode based on highest occupied molecular orbital and LCO absorption energy descriptor was proposed. The irreversible phase transformation was restricted by the LiF rich LCO/electrolyte interface. The well designed tris 2, 2, 2-trifluoroethyl phosphate electrolyte endows Ah grade Gr||LCO pouch cell with excellent electrochemical performance (85.3% capacity retention after 700 cycles), low-temperature adaptability (−60 °C retention: 53%) and greatly improved thermal safety (pass nail penetration).
format Article
id doaj-art-a7df7b417d3f4fdfa6184c02421f8369
institution Kabale University
issn 2311-6706
2150-5551
language English
publishDate 2025-03-01
publisher SpringerOpen
record_format Article
series Nano-Micro Letters
spelling doaj-art-a7df7b417d3f4fdfa6184c02421f83692025-08-20T04:03:00ZengSpringerOpenNano-Micro Letters2311-67062150-55512025-03-0117111610.1007/s40820-025-01694-4Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 CathodeLong Chen0Xin He1Yiqing Chen2Youmin Hou3Yujie Zhang4Kangli Wang5Xinping Ai6Yuliang Cao7Zhongxue Chen8Key Laboratory of Hydraulic Machinery Transients, Ministry of Education, School of Power and Mechanical Engineering, Wuhan UniversityState Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and TechnologyKey Laboratory of Hydraulic Machinery Transients, Ministry of Education, School of Power and Mechanical Engineering, Wuhan UniversityKey Laboratory of Hydraulic Machinery Transients, Ministry of Education, School of Power and Mechanical Engineering, Wuhan UniversityState Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and TechnologyState Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and TechnologyHubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan UniversityHubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan UniversityKey Laboratory of Hydraulic Machinery Transients, Ministry of Education, School of Power and Mechanical Engineering, Wuhan UniversityHighlights A novel electrolyte design strategy for high voltage and high safe LiCoO2 (LCO) cathode based on highest occupied molecular orbital and LCO absorption energy descriptor was proposed. The irreversible phase transformation was restricted by the LiF rich LCO/electrolyte interface. The well designed tris 2, 2, 2-trifluoroethyl phosphate electrolyte endows Ah grade Gr||LCO pouch cell with excellent electrochemical performance (85.3% capacity retention after 700 cycles), low-temperature adaptability (−60 °C retention: 53%) and greatly improved thermal safety (pass nail penetration).https://doi.org/10.1007/s40820-025-01694-4Electrolyte designLiF-rich interfaceWide-temperatureHigh-safe 4.6 V LCO
spellingShingle Long Chen
Xin He
Yiqing Chen
Youmin Hou
Yujie Zhang
Kangli Wang
Xinping Ai
Yuliang Cao
Zhongxue Chen
Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode
Nano-Micro Letters
Electrolyte design
LiF-rich interface
Wide-temperature
High-safe 
4.6 V LCO
title Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode
title_full Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode
title_fullStr Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode
title_full_unstemmed Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode
title_short Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode
title_sort manipulating interfacial stability via preferential absorption for highly stable and safe 4 6 v licoo2 cathode
topic Electrolyte design
LiF-rich interface
Wide-temperature
High-safe 
4.6 V LCO
url https://doi.org/10.1007/s40820-025-01694-4
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