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In situ formation of LiF decoration on a Li-rich material for long-cycle life and superb low-temperature performance
Ding, Xiang; Li, Yi-Xuan; Chen, Fei; He, Xiao-Dong; Yasmin, Aqsa; Hu, Qiao; Wen, Zhao-Yin; Chen, Chun-Hua
2019-05-14
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume7Issue:18Pages:11513
SubtypeArticle
AbstractThe electrochemical properties of layered Li-rich oxide Li1.2Ni0.13Co0.13Mn0.54O2 (LLO) can be enhanced by coating various materials. This paper demonstrates, for the first time, that an in situ formation of an ultrathin and uniform LiF coating layer on LLO is realized via the decomposition of LiPF6, which can effectively protect the surface of the LLO electrode, resulting in much enhanced structural stability and faster lithium ion diffusion kinetics. Such LiF coated LLO shows markedly improved cycle life, rate capability, low-temperature performance and suppressed voltage decay. It exhibits a capacity retention of 93% beyond 1000 cycles at 10C, a capacity of 112mA h g(-1) at -30 degrees C and a negligible voltage decay of 0.0023 V per cycle, displaying great application prospects in such energy storage materials.
DOI10.1039/c9ta02461a
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27119
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Ding, Xiang,Li, Yi-Xuan,Chen, Fei,et al. In situ formation of LiF decoration on a Li-rich material for long-cycle life and superb low-temperature performance[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(18):11513.
APA Ding, Xiang.,Li, Yi-Xuan.,Chen, Fei.,He, Xiao-Dong.,Yasmin, Aqsa.,...&Chen, Chun-Hua.(2019).In situ formation of LiF decoration on a Li-rich material for long-cycle life and superb low-temperature performance.JOURNAL OF MATERIALS CHEMISTRY A,7(18),11513.
MLA Ding, Xiang,et al."In situ formation of LiF decoration on a Li-rich material for long-cycle life and superb low-temperature performance".JOURNAL OF MATERIALS CHEMISTRY A 7.18(2019):11513.
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