Appropriate proportion truncated octahedron LiNi0.5Mn1.5O4 with excellent electrochemical properties for lithium-ion batteries prepared by graphite-assisted calcination method

doi:10.1007/s11581-020-03786-0

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	Appropriate proportion truncated octahedron LiNi0.5Mn1.5O4 with excellent electrochemical properties for lithium-ion batteries prepared by graphite-assisted calcination method
	Wei, Yuan 1; Tuo, Kuanyou 1; Wang, Peng 1; Yang, Li 1; Liang, Wenbiao 1; Ding, Hao 1; Cui, Xiaoling 1,2; Li, Shiyou 1,2
刊名	Ionics
	2020-12-01
卷号	26 期号:12 页码:6003-6012
关键词	Calcination Crystals Graphite Lithium compounds Lithium-ion batteries Manganese compounds Morphology Scanning electron microscopy Surface structure Calcination method Capacity retention Crystal surfaces Different proportions Discharge rates Experimental evidence Polyhedral morphologies Volumetric energy densities
ISSN号	09477047
DOI	10.1007/s11581-020-03786-0
英文摘要	LiNi0.5Mn1.5O4 materials with different crystal surface proportions are synthesized by graphite-assisted calcination method. Scanning electron microscopy (SEM) reveals homogeneous microsized polyhedral morphology with different proportions of exposed {100} and {111} surfaces. The most highlighted result is that LiNi0.5Mn1.5O4 with appropriate proportion exposed {100} and {111} surfaces can achieve both high power and long lifetime simultaneously. The LiNi0.5Mn1.5O4 with appropriate proportion exposed {100} and {111} surfaces can provide a large capacity of 74.8 mAh g−1 even at a discharge rate as high as 20 C. Besides, the capacity retentions of the LiNi0.5Mn1.5O4 with appropriate proportion exposed {100} and {111} surfaces are found to be 93.33% at 1 C after 100 cycles. These results represent the experimental evidence for lattice-plane anisotropy in LiNi0.5Mn1.5O4 crystals. Moreover, the LiNi0.5Mn1.5O4 with appropriate proportion exposed {100} and {111} surface structure is beneficial for obtaining high volumetric energy density and excellent processability in practical applications. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
WOS研究方向	Chemistry ; Electrochemistry ; Physics
语种	英语
出版者	Springer Science and Business Media Deutschland GmbH
WOS记录号	WOS:000571699500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151004]
专题	石油化工学院马克思主义学院
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, 36 Pengjiaping Road, Lanzhou; Gansu province; 730050, China; 2.Gansu Engineering Laboratory of Cathode Material for Lithium-ion Battery, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wei, Yuan,Tuo, Kuanyou,Wang, Peng,et al. Appropriate proportion truncated octahedron LiNi0.5Mn1.5O4 with excellent electrochemical properties for lithium-ion batteries prepared by graphite-assisted calcination method[J]. Ionics,2020,26(12):6003-6012.
APA	Wei, Yuan.,Tuo, Kuanyou.,Wang, Peng.,Yang, Li.,Liang, Wenbiao.,...&Li, Shiyou.(2020).Appropriate proportion truncated octahedron LiNi0.5Mn1.5O4 with excellent electrochemical properties for lithium-ion batteries prepared by graphite-assisted calcination method.Ionics,26(12),6003-6012.
MLA	Wei, Yuan,et al."Appropriate proportion truncated octahedron LiNi0.5Mn1.5O4 with excellent electrochemical properties for lithium-ion batteries prepared by graphite-assisted calcination method".Ionics 26.12(2020):6003-6012.