Improved electrochemical performance of the LiNi0.8Co0.1Mn0.1O2 material with lithium-ion conductor coating for lithium-ion batteries

Meng Wang; Ran Zhang; Yongqiang Gong; Yuefeng Su; Debo Xiang; Lin Chen; Yunbo Chen; Min Luo; Mo Chu

doi:10.1016/j.ssi.2017.10.017

Improved electrochemical performance of the LiNi_0.8Co_0.1Mn_0.1O₂ material with lithium-ion conductor coating for lithium-ion batteries

Meng Wang^*, Ran Zhang, Yongqiang Gong, Yuefeng Su, Debo Xiang, Lin Chen, Yunbo Chen, Min Luo, Mo Chu

^*Corresponding author for this work

School of Material Science and Engineering

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

91 Citations (Scopus)

Abstract

The LiNi_0.8Co_0.1Mn_0.1O₂ was coated by a lithium-ion conductor Li₃PO₄ layer using a simple and efficient coating method. The Ni_0.8Co_0.1Mn_0.1(OH)₂ precursor serves as a coating target, and Li₃PO₄ was deposited on its surface. This method avoids forming lithium residuals and twice calcination process. The electrochemical measurements demonstrated the electrochemical performance of LiNi_0.8Co_0.1Mn_0.1O₂ is greatly enhanced by coating with lithium ion conductor Li₃PO₄, especially at high work potential. It can be ascribed to the Li₃PO₄ acted as a protection layers to reduce the side reactions between the cathode material and electrolyte, and therefore reduced the surface and charge transfer resistance during cycling. Besides that, the high lithium ion conductor characteristics of Li₃PO₄ coating layer are beneficial to improve the diffusion coefficient of lithium ions.

Original language	English
Pages (from-to)	53-60
Number of pages	8
Journal	Solid State Ionics
Volume	312
DOIs	https://doi.org/10.1016/j.ssi.2017.10.017
Publication status	Published - 1 Dec 2017

Keywords

Ions conductive
LiPO coating layer
Nickel-rich

UN SDGs

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

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10.1016/j.ssi.2017.10.017

Cite this

@article{ffe2d153c24445a9bf85ecd105ec598a,

title = "Improved electrochemical performance of the LiNi0.8Co0.1Mn0.1O2 material with lithium-ion conductor coating for lithium-ion batteries",

abstract = "The LiNi0.8Co0.1Mn0.1O2 was coated by a lithium-ion conductor Li3PO4 layer using a simple and efficient coating method. The Ni0.8Co0.1Mn0.1(OH)2 precursor serves as a coating target, and Li3PO4 was deposited on its surface. This method avoids forming lithium residuals and twice calcination process. The electrochemical measurements demonstrated the electrochemical performance of LiNi0.8Co0.1Mn0.1O2 is greatly enhanced by coating with lithium ion conductor Li3PO4, especially at high work potential. It can be ascribed to the Li3PO4 acted as a protection layers to reduce the side reactions between the cathode material and electrolyte, and therefore reduced the surface and charge transfer resistance during cycling. Besides that, the high lithium ion conductor characteristics of Li3PO4 coating layer are beneficial to improve the diffusion coefficient of lithium ions.",

keywords = "Ions conductive, LiPO coating layer, Nickel-rich",

author = "Meng Wang and Ran Zhang and Yongqiang Gong and Yuefeng Su and Debo Xiang and Lin Chen and Yunbo Chen and Min Luo and Mo Chu",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.ssi.2017.10.017",

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T1 - Improved electrochemical performance of the LiNi0.8Co0.1Mn0.1O2 material with lithium-ion conductor coating for lithium-ion batteries

AU - Wang, Meng

AU - Zhang, Ran

AU - Gong, Yongqiang

AU - Su, Yuefeng

AU - Xiang, Debo

AU - Chen, Lin

AU - Chen, Yunbo

AU - Luo, Min

AU - Chu, Mo

PY - 2017/12/1

Y1 - 2017/12/1

N2 - The LiNi0.8Co0.1Mn0.1O2 was coated by a lithium-ion conductor Li3PO4 layer using a simple and efficient coating method. The Ni0.8Co0.1Mn0.1(OH)2 precursor serves as a coating target, and Li3PO4 was deposited on its surface. This method avoids forming lithium residuals and twice calcination process. The electrochemical measurements demonstrated the electrochemical performance of LiNi0.8Co0.1Mn0.1O2 is greatly enhanced by coating with lithium ion conductor Li3PO4, especially at high work potential. It can be ascribed to the Li3PO4 acted as a protection layers to reduce the side reactions between the cathode material and electrolyte, and therefore reduced the surface and charge transfer resistance during cycling. Besides that, the high lithium ion conductor characteristics of Li3PO4 coating layer are beneficial to improve the diffusion coefficient of lithium ions.

AB - The LiNi0.8Co0.1Mn0.1O2 was coated by a lithium-ion conductor Li3PO4 layer using a simple and efficient coating method. The Ni0.8Co0.1Mn0.1(OH)2 precursor serves as a coating target, and Li3PO4 was deposited on its surface. This method avoids forming lithium residuals and twice calcination process. The electrochemical measurements demonstrated the electrochemical performance of LiNi0.8Co0.1Mn0.1O2 is greatly enhanced by coating with lithium ion conductor Li3PO4, especially at high work potential. It can be ascribed to the Li3PO4 acted as a protection layers to reduce the side reactions between the cathode material and electrolyte, and therefore reduced the surface and charge transfer resistance during cycling. Besides that, the high lithium ion conductor characteristics of Li3PO4 coating layer are beneficial to improve the diffusion coefficient of lithium ions.

KW - Ions conductive

KW - LiPO coating layer

KW - Nickel-rich

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DO - 10.1016/j.ssi.2017.10.017

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SP - 53

EP - 60

JO - Solid State Ionics

JF - Solid State Ionics

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