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DOI	10.1039/d0ee01694b
	Li-rich cathodes for rechargeable Li-based batteries: Reaction mechanisms and advanced characterization techniques
	Zuo W.; Luo M.; Liu X.; Wu J.; Liu H.; Li J.; Winter M.; Fu R.; Yang W.; Yang Y.
发表日期	2020
ISSN	17545692
起始页码	4450
结束页码	4497
卷号	13 期号:12
英文摘要	Due to their high specific capacities beyond 250 mA h g-1, lithium-rich oxides have been considered as promising cathodes for the next generation power batteries, bridging the capacity gap between traditional layered-oxide based lithium-ion batteries and future lithium metal batteries such as lithium sulfur and lithium air batteries. However, the practical application of Li-rich oxides has been hindered by formidable challenges. To address these challenges, the understanding of their electrochemical behaviors becomes critical and is expected to offer effective guidance for both materials and cell development. This review aims to provide fundamental insights into the reaction mechanisms, electrochemical challenges and modification strategies of lithium-rich oxides. We first summarize the research history, the pristine structures, and the classification of lithium-rich oxides. Then we review the critical reaction mechanisms that are closely related to their electrochemical features and performances, such as lattice oxygen oxidation, oxygen vacancy formation, transition-metal migration, layered to spinel transitions, 'two-phase mechanism', and lattice evolution. These discussions are coupled with state-of-the-art characterization techniques. As a comparison, the anionic redox reactions of layered sodium transition metal oxides are also discussed. Finally, after a brief overview of the correlation among the aforementioned mechanisms, we provide perspectives on the rational design of lithium-rich oxides with high energy densities and long-term cycling stability. This journal is © The Royal Society of Chemistry.
英文关键词	Cathodes; Lithium-ion batteries; Oxygen; Redox reactions; Sodium compounds; Transition metal oxides; Transition metals; Characterization techniques; Electrochemical behaviors; Electrochemical features; High energy densities; High specific capacity; Pristine structures; Reaction mechanism; Vacancy formation; Lithium compounds; chemical reaction; detection method; electrode; lithium
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/189462
作者单位	State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China; Department of NanoEngineering, University of California San Diego, San diego, CA 92093, United States; Helmholtz-Institute Münster (IEK-12), Forschungszentrum Jülich GmbH, Corrensstraße 46, Münster, 48149, Germany; Department of Energy, Politecnico di Milano, Via Lambruschini, 4, Milano, 20156, Italy; Meet Battery Research Center, University of Münster, Corrensstraße 46, Münster, 48149, Germany; National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310, United States; Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
推荐引用方式 GB/T 7714	Zuo W.,Luo M.,Liu X.,et al. Li-rich cathodes for rechargeable Li-based batteries: Reaction mechanisms and advanced characterization techniques[J],2020,13(12).
APA	Zuo W..,Luo M..,Liu X..,Wu J..,Liu H..,...&Yang Y..(2020).Li-rich cathodes for rechargeable Li-based batteries: Reaction mechanisms and advanced characterization techniques.Energy & Environmental Science,13(12).
MLA	Zuo W.,et al."Li-rich cathodes for rechargeable Li-based batteries: Reaction mechanisms and advanced characterization techniques".Energy & Environmental Science 13.12(2020).