Improved electrochemical properties of YF3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode for Li-ion batteries

Bailong Liu; Zhaohui Zhang; Jiangkai Wan; Shifeng Liu

doi:10.1007/s11581-016-1950-4

Improved electrochemical properties of YF₃-coated Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ as cathode for Li-ion batteries

Bailong Liu, Zhaohui Zhang^*, Jiangkai Wan, Shifeng Liu

^*Corresponding author for this work

Xi'an University of Architecture and Technology

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Yttrium fluoride YF₃ layer with different coating contents is successfully covered on the surface of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ via a common wet chemical approach. The XRD, SEM, TEM, and charge-discharge tests are applied to investigate the influence of YF₃ layer on the micro-structural, morphology, and electrochemical properties of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂. And the electrochemical test results demonstrate that the YF₃-coated LMNCO samples exhibit the improved electrochemical properties. The 2wt.%YF₃-coated LMNCO delivers a discharge capacity of 116.6 mAh g⁻¹ at 5 C rate, much larger than that (95.6 mAh g⁻¹) of the pristine one. Besides, the electrochemical impedance spectroscopy (EIS) and cyclic voltammetric results indicate that the YF₃ coating layer can promote the optimization formation of SEI film and reversibility of the electrochemical redox.

Original language	English
Pages (from-to)	1365-1374
Number of pages	10
Journal	Ionics
Volume	23
Issue number	6
DOIs	https://doi.org/10.1007/s11581-016-1950-4
Publication status	Published - Jun 2017
Externally published	Yes

Keywords

Electrochemical properties
LiMnNiCoO
Lithium-ion battery
YF-coated

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s11581-016-1950-4

Cite this

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title = "Improved electrochemical properties of YF3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode for Li-ion batteries",

abstract = "Yttrium fluoride YF3 layer with different coating contents is successfully covered on the surface of Li1.2Mn0.54Ni0.13Co0.13O2 via a common wet chemical approach. The XRD, SEM, TEM, and charge-discharge tests are applied to investigate the influence of YF3 layer on the micro-structural, morphology, and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2. And the electrochemical test results demonstrate that the YF3-coated LMNCO samples exhibit the improved electrochemical properties. The 2wt.\%YF3-coated LMNCO delivers a discharge capacity of 116.6 mAh g−1 at 5 C rate, much larger than that (95.6 mAh g−1) of the pristine one. Besides, the electrochemical impedance spectroscopy (EIS) and cyclic voltammetric results indicate that the YF3 coating layer can promote the optimization formation of SEI film and reversibility of the electrochemical redox.",

keywords = "Electrochemical properties, LiMnNiCoO, Lithium-ion battery, YF-coated",

author = "Bailong Liu and Zhaohui Zhang and Jiangkai Wan and Shifeng Liu",

note = "Publisher Copyright: {\textcopyright} 2017, Springer-Verlag Berlin Heidelberg.",

year = "2017",

month = jun,

doi = "10.1007/s11581-016-1950-4",

language = "English",

volume = "23",

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journal = "Ionics",

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T1 - Improved electrochemical properties of YF3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode for Li-ion batteries

AU - Liu, Bailong

AU - Zhang, Zhaohui

AU - Wan, Jiangkai

AU - Liu, Shifeng

PY - 2017/6

Y1 - 2017/6

N2 - Yttrium fluoride YF3 layer with different coating contents is successfully covered on the surface of Li1.2Mn0.54Ni0.13Co0.13O2 via a common wet chemical approach. The XRD, SEM, TEM, and charge-discharge tests are applied to investigate the influence of YF3 layer on the micro-structural, morphology, and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2. And the electrochemical test results demonstrate that the YF3-coated LMNCO samples exhibit the improved electrochemical properties. The 2wt.%YF3-coated LMNCO delivers a discharge capacity of 116.6 mAh g−1 at 5 C rate, much larger than that (95.6 mAh g−1) of the pristine one. Besides, the electrochemical impedance spectroscopy (EIS) and cyclic voltammetric results indicate that the YF3 coating layer can promote the optimization formation of SEI film and reversibility of the electrochemical redox.

AB - Yttrium fluoride YF3 layer with different coating contents is successfully covered on the surface of Li1.2Mn0.54Ni0.13Co0.13O2 via a common wet chemical approach. The XRD, SEM, TEM, and charge-discharge tests are applied to investigate the influence of YF3 layer on the micro-structural, morphology, and electrochemical properties of Li1.2Mn0.54Ni0.13Co0.13O2. And the electrochemical test results demonstrate that the YF3-coated LMNCO samples exhibit the improved electrochemical properties. The 2wt.%YF3-coated LMNCO delivers a discharge capacity of 116.6 mAh g−1 at 5 C rate, much larger than that (95.6 mAh g−1) of the pristine one. Besides, the electrochemical impedance spectroscopy (EIS) and cyclic voltammetric results indicate that the YF3 coating layer can promote the optimization formation of SEI film and reversibility of the electrochemical redox.

KW - Electrochemical properties

KW - LiMnNiCoO

KW - Lithium-ion battery

KW - YF-coated

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