Lithium-active molybdenum trioxide coated LiNi0.5Co 0.2Mn0.3O2 cathode material with enhanced electrochemical properties for lithium-ion batteries

Feng Wu; Jun Tian; Yuefeng Su; Yibiao Guan; Yi Jin; Zhao Wang; Tao He; Liying Bao; Shi Chen

doi:10.1016/j.jpowsour.2014.07.057

Lithium-active molybdenum trioxide coated LiNi_0.5Co _0.2Mn_0.3O₂ cathode material with enhanced electrochemical properties for lithium-ion batteries

Feng Wu, Jun Tian, Yuefeng Su^*, Yibiao Guan, Yi Jin, Zhao Wang, Tao He, Liying Bao, Shi Chen

^*Corresponding author for this work

School of Material Science and Engineering

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

86 Citations (Scopus)

Abstract

LiNi_0.5Co_0.2Mn_0.3O₂ cathode material was coated with MoO₃ via a wet coating process. X-ray diffraction patterns show that the coating surface is composed of MoO ₃ and Li₂MoO₄. The 3 wt.% MoO₃ coated LiNi_0.5Co_0.2Mn_0.3O₂ cathode (Li₂MoO₄ is treated as equivalent mole of MoO₃) exhibits the best improved cycling performance. It performs a capacity retention of 90.9% after 100 cycles while that of the pristine material is only 82.8%. After being coated by 3 wt.% MoO₃, the rate performance is also greatly enhanced and the charge transfer resistance is greatly decreased. The improvement of electrochemical performance is related to the fact that the coating layer diminishes the side reactions between the cathode and the electrolyte.

Original language	English
Pages (from-to)	747-754
Number of pages	8
Journal	Journal of Power Sources
Volume	269
DOIs	https://doi.org/10.1016/j.jpowsour.2014.07.057
Publication status	Published - 10 Dec 2014

Keywords

Cathode material
Coating
Electrochemical properties
Lithium-ion batteries

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

Access to Document

10.1016/j.jpowsour.2014.07.057

Cite this

@article{757e1e744efc4a7188b45edfcd207c46,

title = "Lithium-active molybdenum trioxide coated LiNi0.5Co 0.2Mn0.3O2 cathode material with enhanced electrochemical properties for lithium-ion batteries",

abstract = "LiNi0.5Co0.2Mn0.3O2 cathode material was coated with MoO3 via a wet coating process. X-ray diffraction patterns show that the coating surface is composed of MoO 3 and Li2MoO4. The 3 wt.% MoO3 coated LiNi0.5Co0.2Mn0.3O2 cathode (Li2MoO4 is treated as equivalent mole of MoO3) exhibits the best improved cycling performance. It performs a capacity retention of 90.9% after 100 cycles while that of the pristine material is only 82.8%. After being coated by 3 wt.% MoO3, the rate performance is also greatly enhanced and the charge transfer resistance is greatly decreased. The improvement of electrochemical performance is related to the fact that the coating layer diminishes the side reactions between the cathode and the electrolyte.",

keywords = "Cathode material, Coating, Electrochemical properties, Lithium-ion batteries",

author = "Feng Wu and Jun Tian and Yuefeng Su and Yibiao Guan and Yi Jin and Zhao Wang and Tao He and Liying Bao and Shi Chen",

year = "2014",

month = dec,

day = "10",

doi = "10.1016/j.jpowsour.2014.07.057",

language = "English",

volume = "269",

pages = "747--754",

journal = "Journal of Power Sources",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Lithium-active molybdenum trioxide coated LiNi0.5Co 0.2Mn0.3O2 cathode material with enhanced electrochemical properties for lithium-ion batteries

AU - Wu, Feng

AU - Tian, Jun

AU - Su, Yuefeng

AU - Guan, Yibiao

AU - Jin, Yi

AU - Wang, Zhao

AU - He, Tao

AU - Bao, Liying

AU - Chen, Shi

PY - 2014/12/10

Y1 - 2014/12/10

N2 - LiNi0.5Co0.2Mn0.3O2 cathode material was coated with MoO3 via a wet coating process. X-ray diffraction patterns show that the coating surface is composed of MoO 3 and Li2MoO4. The 3 wt.% MoO3 coated LiNi0.5Co0.2Mn0.3O2 cathode (Li2MoO4 is treated as equivalent mole of MoO3) exhibits the best improved cycling performance. It performs a capacity retention of 90.9% after 100 cycles while that of the pristine material is only 82.8%. After being coated by 3 wt.% MoO3, the rate performance is also greatly enhanced and the charge transfer resistance is greatly decreased. The improvement of electrochemical performance is related to the fact that the coating layer diminishes the side reactions between the cathode and the electrolyte.

AB - LiNi0.5Co0.2Mn0.3O2 cathode material was coated with MoO3 via a wet coating process. X-ray diffraction patterns show that the coating surface is composed of MoO 3 and Li2MoO4. The 3 wt.% MoO3 coated LiNi0.5Co0.2Mn0.3O2 cathode (Li2MoO4 is treated as equivalent mole of MoO3) exhibits the best improved cycling performance. It performs a capacity retention of 90.9% after 100 cycles while that of the pristine material is only 82.8%. After being coated by 3 wt.% MoO3, the rate performance is also greatly enhanced and the charge transfer resistance is greatly decreased. The improvement of electrochemical performance is related to the fact that the coating layer diminishes the side reactions between the cathode and the electrolyte.

KW - Cathode material

KW - Coating

KW - Electrochemical properties

KW - Lithium-ion batteries

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