High-Entropy Modulation of Local Electronic Environments to Improve Cycling Stability of P2-Na0.47[Na0.2Mn0.54Ni0.13FexCuyCo0.13-x-y]O2 Sodium-Ion Cathodes

High-Entropy Modulation of Local Electronic Environments to Improve Cycling Stability of P2-Na0.47[Na0.2Mn0.54Ni0.13FexCuyCo0.13-x-y]O2 Sodium-Ion Cathodes | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 4 April 2025 V1 Latest version Share on High-Entropy Modulation of Local Electronic Environments to Improve Cycling Stability of P2-Na0.47[Na0.2Mn0.54Ni0.13FexCuyCo0.13-x-y]O2 Sodium-Ion Cathodes Authors : Huiping Li , Minghe Yi , Chao Gao 0000-0003-4221-6996 [email protected] , Congqing Yang , Jian Zhang , Yuwen Feng , and Hui Huang Authors Info & Affiliations https://doi.org/10.22541/au.174372688.88398666/v1 165 views 87 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract \fancypagestyle firstpage\fancyhf \lhead \chead \rhead \cfoot فروردین ماه ۱۴۰۴ Searching for low-cost sodium cathode materials with high theoretical capacity remains a key challenge in supporting the expansion of 5G base stations and alleviating the shortage of lithium resource. Among various candidates, manganese-based layered transition metal oxides have emerged as promising sodium-ion battery cathodes due to their high redox potential and theoretical capacity. However, their commercial application is hindered by poor structural stability and irreversible phase transitions. In this study, a high-entropy structured P2-Na0.47[Na0.2Mn0.54Ni0.13FexCuyCo0.13-x-y]O2 cathode material was synthesized via co-precipitation method, guided by density functional theory (DFT) calculations and entropy analysis. The relationship between elemental composition and electrochemical performance was systematically investigated. The action mechanism of Fe, Co co-doping on enhancing electrochemical property was explored from aspects of reaction energy and phase transition during charge-discharge process. Thanks to the key role of high entropy crystal structure, Na0.47[Na0.2Mn0.54Ni0.13Fe0.03Cu0.05Co0.05]O2 (NNMFCCO-5) delivers a high specific capacity of 123 mAh·g-1 at 1C and outstanding capacity retention of 89% after 100 cycles. Moreover, it also demonstrates excellent cycling stability in a full cell paired with hard carbon, maintaining over 90% capacity retention after 100 cycles at 1C. These findings provide both experimental and theoretical foundations for advancing the commercialization of P2-type manganese-based sodium cathode materials. Supplementary Material File (manuscript.docx) Download 5.96 MB Information & Authors Information Version history V1 Version 1 04 April 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords cycling stability fe and cu co-doping high entropy structure p2-na0.47[na0.2mn0.54ni0.13co0.05]o2 layered material phase transition Authors Affiliations Huiping Li Kunming University of Science and Technology - Lianhua Campus View all articles by this author Minghe Yi Kunming University of Science and Technology View all articles by this author Chao Gao 0000-0003-4221-6996 [email protected] Kunming University of Science and Technology - Lianhua Campus View all articles by this author Congqing Yang Kunming University of Science and Technology View all articles by this author Jian Zhang Kunming University of Science and Technology View all articles by this author Yuwen Feng Kunming University of Science and Technology View all articles by this author Hui Huang Kunming University of Science and Technology View all articles by this author Metrics & Citations Metrics Article Usage 165 views 87 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Huiping Li, Minghe Yi, Chao Gao, et al. High-Entropy Modulation of Local Electronic Environments to Improve Cycling Stability of P2-Na0.47[Na0.2Mn0.54Ni0.13FexCuyCo0.13-x-y]O2 Sodium-Ion Cathodes. Authorea . 04 April 2025. DOI: https://doi.org/10.22541/au.174372688.88398666/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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