Effect of Fe-doping followed by C+SiO2 hybrid layer coating on Li3V2(PO4)3 cathode material for lithium-ion batteries

Hua Bin Sun; Lu Lu Zhang; Xue Lin Yang; Yun Hui Huang; Zhen Li; Ying Xian Zhou; Xiao Kai Ding; Gan Liang

doi:10.1016/j.ceramint.2016.07.075

Effect of Fe-doping followed by C+SiO₂ hybrid layer coating on Li₃V₂(PO₄)₃ cathode material for lithium-ion batteries

Hua Bin Sun, Lu Lu Zhang, Xue Lin Yang, Yun Hui Huang, Zhen Li, Ying Xian Zhou, Xiao Kai Ding, Gan Liang

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

13 Scopus citations

Abstract

A novel Li₃V₂(PO₄)₃ composite modified with Fe-doping followed by C+SiO₂ hybrid layer coating (LVFP/C-Si) is successfully synthesized via an ultrasonic-assisted solid-state method, and characterized by XRD, XPS, TEM, galvanostatic charge/discharge measurements, CV and EIS. This LVFP/C-Si electrode shows a significantly improved electrochemical performance. It presents an initial discharge capacity as high as 170.8 mA h g⁻¹ at 1 C, and even delivers an excellent initial capacity of 153.6 mA h g⁻¹ with capacity retention of 82.3% after 100 cycles at 5 C. The results demonstrate that this novel modification with doping followed by hybrid layer coating is an ideal design to obtain both high capacity and long cycle performance for Li₃V₂(PO₄)₃ and other polyanion cathode materials in lithium ion batteries.

Original language	English
Pages (from-to)	16557-16562
Number of pages	6
Journal	Ceramics International
Volume	42
Issue number	15
DOIs	https://doi.org/10.1016/j.ceramint.2016.07.075
State	Published - 15 Nov 2016
Externally published	Yes

Keywords

Fe-doping
Hybrid layer coating
Lithium ion battery
Lithium vanadium phosphate

UN SDGs

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

Access to Document

10.1016/j.ceramint.2016.07.075

Cite this

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title = "Effect of Fe-doping followed by C+SiO2 hybrid layer coating on Li3V2(PO4)3 cathode material for lithium-ion batteries",

abstract = "A novel Li3V2(PO4)3 composite modified with Fe-doping followed by C+SiO2 hybrid layer coating (LVFP/C-Si) is successfully synthesized via an ultrasonic-assisted solid-state method, and characterized by XRD, XPS, TEM, galvanostatic charge/discharge measurements, CV and EIS. This LVFP/C-Si electrode shows a significantly improved electrochemical performance. It presents an initial discharge capacity as high as 170.8 mA h g−1 at 1 C, and even delivers an excellent initial capacity of 153.6 mA h g−1 with capacity retention of 82.3% after 100 cycles at 5 C. The results demonstrate that this novel modification with doping followed by hybrid layer coating is an ideal design to obtain both high capacity and long cycle performance for Li3V2(PO4)3 and other polyanion cathode materials in lithium ion batteries.",

keywords = "Fe-doping, Hybrid layer coating, Lithium ion battery, Lithium vanadium phosphate",

author = "Sun, {Hua Bin} and Zhang, {Lu Lu} and Yang, {Xue Lin} and Huang, {Yun Hui} and Zhen Li and Zhou, {Ying Xian} and Ding, {Xiao Kai} and Gan Liang",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = nov,

day = "15",

doi = "10.1016/j.ceramint.2016.07.075",

language = "英语",

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TY - JOUR

T1 - Effect of Fe-doping followed by C+SiO2 hybrid layer coating on Li3V2(PO4)3 cathode material for lithium-ion batteries

AU - Sun, Hua Bin

AU - Zhang, Lu Lu

AU - Yang, Xue Lin

AU - Huang, Yun Hui

AU - Li, Zhen

AU - Zhou, Ying Xian

AU - Ding, Xiao Kai

AU - Liang, Gan

PY - 2016/11/15

Y1 - 2016/11/15

N2 - A novel Li3V2(PO4)3 composite modified with Fe-doping followed by C+SiO2 hybrid layer coating (LVFP/C-Si) is successfully synthesized via an ultrasonic-assisted solid-state method, and characterized by XRD, XPS, TEM, galvanostatic charge/discharge measurements, CV and EIS. This LVFP/C-Si electrode shows a significantly improved electrochemical performance. It presents an initial discharge capacity as high as 170.8 mA h g−1 at 1 C, and even delivers an excellent initial capacity of 153.6 mA h g−1 with capacity retention of 82.3% after 100 cycles at 5 C. The results demonstrate that this novel modification with doping followed by hybrid layer coating is an ideal design to obtain both high capacity and long cycle performance for Li3V2(PO4)3 and other polyanion cathode materials in lithium ion batteries.

AB - A novel Li3V2(PO4)3 composite modified with Fe-doping followed by C+SiO2 hybrid layer coating (LVFP/C-Si) is successfully synthesized via an ultrasonic-assisted solid-state method, and characterized by XRD, XPS, TEM, galvanostatic charge/discharge measurements, CV and EIS. This LVFP/C-Si electrode shows a significantly improved electrochemical performance. It presents an initial discharge capacity as high as 170.8 mA h g−1 at 1 C, and even delivers an excellent initial capacity of 153.6 mA h g−1 with capacity retention of 82.3% after 100 cycles at 5 C. The results demonstrate that this novel modification with doping followed by hybrid layer coating is an ideal design to obtain both high capacity and long cycle performance for Li3V2(PO4)3 and other polyanion cathode materials in lithium ion batteries.

KW - Fe-doping

KW - Hybrid layer coating

KW - Lithium ion battery

KW - Lithium vanadium phosphate

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JO - Ceramics International

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