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DOI	10.1039/c9ee00368a
	Multi-anionic and -cationic compounds: New high entropy materials for advanced Li-ion batteries
	Wang Q.; Sarkar A.; Wang D.; Velasco L.; Azmi R.; Bhattacharya S.S.; Bergfeldt T.; Düvel A.; Heitjans P.; Brezesinski T.; Hahn H.; Breitung B.
发表日期	2019
ISSN	17545692
起始页码	2433
结束页码	2442
卷号	12 期号:8
英文摘要	In the present work, a new class of high entropy materials for energy storage applications is introduced. Multi-anionic and -cationic compounds are prepared by facile mechanochemistry using a recently designed multi-cationic transition-metal-based high entropy oxide as the precursor and LiF or NaCl as the reactant, leading to formation of lithiated or sodiated materials. Notably, the Li-containing entropy-stabilized oxyfluoride described herein (Lix(Co0.2Cu0.2Mg0.2Ni0.2Zn0.2)OFx) exhibits a working potential of 3.4 V vs. Li+/Li, enabling its use as a cathode active material. Unlike conventional (non-entropy-stabilized) oxyfluorides, this new material shows enhanced Li storage properties due to entropy stabilization, which, in general, facilitates tailoring the cycling performance by varying the constituent elements in yet unprecedented ways. In addition, we demonstrate that the concept of entropy stabilization is also applicable to Na-containing oxychlorides with a rock-salt structure, thus paving the way toward development of (next-generation) post-Li battery technologies. © The Royal Society of Chemistry 2019.
英文关键词	Cobalt compounds; Copper compounds; Entropy; Fluorine compounds; Lithium-ion batteries; Magnesium compounds; Nickel compounds; Sodium chloride; Stabilization; Transition metals; Zinc compounds; Cathode active material; Cationic compounds; Constituent elements; Cycling performance; Energy storage applications; Li-storage properties; Mechano-chemistry; Rock salt structures; Lithium compounds; anion; cation; chemical compound; energy storage; entropy; fuel cell; transition element
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189847
作者单位	Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany; Joint Research Laboratory, Nanomaterials-Technische Universität Darmstadt, Karlsruhe Institute of Technology (KIT), Otto-Berndt-Str. 3, Darmstadt, 64206, Germany; Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany; Institute for Applied Materials, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany; Department of Metallurgical and Materials Engineering, Nano Functional Materials Technology Centre (NFMTC), Indian Institute of Technology Madras, Chennai, 600036, India; Institute of Physical Chemistry and Electrochemistry, ZFM-Center for Solid State Chemistry and New Materials, Leibniz University Hannover, Callinstr. 3a, Hannover, 30167, Germany; Helmholtz Institute Ulm for Electrochemical Energy Storage, Helm...
推荐引用方式 GB/T 7714	Wang Q.,Sarkar A.,Wang D.,et al. Multi-anionic and -cationic compounds: New high entropy materials for advanced Li-ion batteries[J],2019,12(8).
APA	Wang Q..,Sarkar A..,Wang D..,Velasco L..,Azmi R..,...&Breitung B..(2019).Multi-anionic and -cationic compounds: New high entropy materials for advanced Li-ion batteries.Energy & Environmental Science,12(8).
MLA	Wang Q.,et al."Multi-anionic and -cationic compounds: New high entropy materials for advanced Li-ion batteries".Energy & Environmental Science 12.8(2019).