气候变化领域集成服务门户(CCPortal): A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries

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DOI	10.1039/c8ee00155c
	A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries
	Kim J.; Ma H.; Cha H.; Lee H.; Sung J.; Seo M.; Oh P.; Park M.; Cho J.
发表日期	2018
ISSN	17545692
起始页码	1449
结束页码	1459
卷号	11 期号:6
英文摘要	Advanced surface engineering of nickel-rich cathode materials greatly enhances their structural/thermal stability. However, their application into lithium-ion full-cells still faces challenges, such as the unstable solid electrolyte interphase (SEI) layer on the anode. Herein, we reveal that the degradation of battery cycle life is caused by the release of divalent nickel ions from the LiNi0.8Co0.1Mn0.1O2 cathode and the formation of nickel metal particles on the graphite anode surface, deteriorating the anode SEI layer and its structural integrity. On the basis of this finding, we demonstrate a stable lithium-ion battery by modifying the cathode surface by creating a nanostructured stabilizer with an epitaxial structure that enhances the morphological robustness. During cycling, the nickel defects in the cathode are significantly suppressed, preventing nickel ion crossover. In particular, the anode SEI layer maintains a uniform and dense structure, leading to outstanding cycling stability in the full-cell with a capacity retention of ∼86% after 400 cycles at 25 °C. © 2018 The Royal Society of Chemistry.
英文关键词	Anodes; Cathodes; Cobalt compounds; Ions; Lithium compounds; Manganese compounds; Nickel compounds; Seebeck effect; Solid electrolytes; Battery cycle life; Capacity retention; Cath-ode materials; Cycling stability; Epitaxial structure; Lithium-ion full cells; Solid electrolyte interphase layer (SEI); Surface engineering; Lithium-ion batteries; degradation; electrode; electrolyte; energy; graphite; ion; lithium; nanotechnology; nickel
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/190226
作者单位	Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Ulsan, 44919, South Korea; Department of Graphic Arts Information Engineering,Pukyong National University, Busan, 48547, South Korea; Harvard John A. Paulson School of Engineering and Applied Science, 29 Oxford StreetMA 02138, United States
推荐引用方式 GB/T 7714	Kim J.,Ma H.,Cha H.,et al. A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries[J],2018,11(6).
APA	Kim J..,Ma H..,Cha H..,Lee H..,Sung J..,...&Cho J..(2018).A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries.Energy & Environmental Science,11(6).
MLA	Kim J.,et al."A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries".Energy & Environmental Science 11.6(2018).