Effect of precipitators on the morphologies and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2 via rapid nucleation and post-solvothermal method

doi:10.1016/j.electacta.2016.12.035

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	Effect of precipitators on the morphologies and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2 via rapid nucleation and post-solvothermal method
	Yan, Wenchao 1,2; Jiang, Jicheng 1,2; Liu, Wei 1; Sun, Deye 1; Zhao, Erqing1 ; Jin, Yongcheng 1; Kanamura, Kiyoshi 3
	2017-01-10
发表期刊	ELECTROCHIMICA ACTA
卷号	224 页码:161-170
摘要	Different morphologies of Li-rich layered oxides, Li1.2Mn0.54Co0.13Ni0.13O2 (LMNCO), were synthesised using a rapid nucleation and post-solvothermal method followed by calcination. After the process of rapid nucleation, the as-prepared mixture of M(OH)(2) using NaOH as the precipitator showed nanoplate aggregation, while the mixture of MCO3 using (NH4)(2)CO3 as the precipitator presented a spherical morphology. After subsequent solvothermal processing and calcination, Li1.2Mn0.54Co0.13Ni0.13O2 samples with uniform nanoplate particles (LMNCO-P) and spherical particles (LMNCO-S) were obtained. The as-prepared LMNCO-P and LMNCO-S samples exhibited excellent electrochemical performance and delivered high initial discharge capacities of 282 and 278 mA h g(-1) respectively, at 0.1C with a cut-off voltage in the range 2.0-4.8 V. The LMNCO-S cathode material exhibited outstanding cycling performance with capacity retention ratios of 88%, 89%, and 92% at 1, 2, and 5C, respectively, after 100 cycles. Furthermore, after a stepped pre-cycling treatment, the capacity retention of the LMNCO-S cathode material reached 79% after 500 cycles at 5C. The superior cycling performance can be ascribed to the spherical morphology with a small surface area, which decreased side reactions with the electrolyte and enhanced the crystal structure stability after the pre-cycling treatment. (C) 2016 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Rapid Nucleation Precipitator Solvothermal Method Spherical Particles Li-ion Batteries
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.electacta.2016.12.035
关键词[WOS]	LITHIUM-ION BATTERIES ; POSITIVE-ELECTRODE MATERIAL ; IRREVERSIBLE CAPACITY LOSS ; LAYERED CATHODE MATERIAL ; X-RAY-DIFFRACTION ; COMPOSITE CATHODES ; CYCLING STABILITY ; RATE PERFORMANCE ; RATE CAPABILITY ; LI
收录类别	SCI
语种	英语
WOS研究方向	Electrochemistry
项目资助者	Chinese Academy of Sciences ; Qingdao Key Laboratory of Solar Energy Utilization and Energy Storage Technology
WOS类目	Electrochemistry
WOS记录号	WOS:000392165800020
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9178
专题	先进界面技术研究组
作者单位	1.Chinese Acad Sci, Qingdao Ind Energy Storage Technol Inst, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquanlu Rd, Beijing 100049, Peoples R China 3.Tokyo Metropolitan Univ, Grad Sch Urban Environm Sci, Dept Appl Chem, 1-1 Minami Ohsawa, Hachioji, Tokyo 1920397, Japan
推荐引用方式 GB/T 7714	Yan, Wenchao,Jiang, Jicheng,Liu, Wei,et al. Effect of precipitators on the morphologies and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2 via rapid nucleation and post-solvothermal method[J]. ELECTROCHIMICA ACTA,2017,224:161-170.
APA	Yan, Wenchao.,Jiang, Jicheng.,Liu, Wei.,Sun, Deye.,Zhao, Erqing.,...&Kanamura, Kiyoshi.(2017).Effect of precipitators on the morphologies and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2 via rapid nucleation and post-solvothermal method.ELECTROCHIMICA ACTA,224,161-170.
MLA	Yan, Wenchao,et al."Effect of precipitators on the morphologies and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2 via rapid nucleation and post-solvothermal method".ELECTROCHIMICA ACTA 224(2017):161-170.