Mg doping improving the cycle stability of LiNi0.5Mn0.5O2 at high voltage

doi:10.1007/s10008-017-3666-4

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	Mg doping improving the cycle stability of LiNi0.5Mn0.5O2 at high voltage
	Yang, Guowei; Zhao, Enyue; Chen, Minmin; Cheng, Yingzhi; Xue, Li; Hu, Zhongbo; Xiao, Xiaoling; Li, Faqiang
第一作者	Yang, Guowei
	2017-11
发表期刊	JOURNAL OF SOLID STATE ELECTROCHEMISTRY
ISSN	1432-8488
卷号	21 期号:11 页码:3195-3203
摘要	A series of LiNi0.5-x Mg (x) Mn0.5O2 (0 <= x <= 0.1) samples are synthesized by a combination of coprecipitation (CP) and solid-state reaction. After electrochemical measurements, the discharge capacity and cycle stability of LiNi0.5Mn0.5O2 can be obviously improved by Mg doping and the best doping amount is 5%. Most importantly, the cycle stability of LiNi0.5Mn0.5O2 at high voltage can be greatly improved by Mg doping. Specifically, capacity retention of 5% Mg-doping sample improves 16% than that of pure LiNi0.5Mn0.5O2 in the range of 3.0 similar to 4.6 V. We find Mg doping can lower the Li/Ni cation mixing, reduce migration resistance, and retard polarization, in turn, improve the electrochemical properties of LiNi0.5-x Mg (x) Mn0.5O2.
DOI	10.1007/s10008-017-3666-4
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34543
专题	盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Yang, Guowei,Zhao, Enyue,Chen, Minmin,et al. Mg doping improving the cycle stability of LiNi0.5Mn0.5O2 at high voltage[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2017,21(11):3195-3203.
APA	Yang, Guowei.,Zhao, Enyue.,Chen, Minmin.,Cheng, Yingzhi.,Xue, Li.,...&Li, Faqiang.(2017).Mg doping improving the cycle stability of LiNi0.5Mn0.5O2 at high voltage.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,21(11),3195-3203.
MLA	Yang, Guowei,et al."Mg doping improving the cycle stability of LiNi0.5Mn0.5O2 at high voltage".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 21.11(2017):3195-3203.

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