Superior rate performance of Li3V2(PO4)3 co-modified by Fe-doping and rGO-incorporation

Zhen Li; Lu Lu Zhang; Xue Lin Yang; Hua Bin Sun; Yun Hui Huang; Gan Liang

doi:10.1039/c5ra26636j

Superior rate performance of Li₃V₂(PO₄)₃ co-modified by Fe-doping and rGO-incorporation

Zhen Li, Lu Lu Zhang, Xue Lin Yang, Hua Bin Sun, Yun Hui Huang, Gan Liang

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

31 Scopus citations

Abstract

Reduced graphene oxide (rGO) incorporated Li₃V_1.94Fe_0.06(PO₄)₃/C cathode materials were successfully prepared by a sol-gel method. Compared with Li₃V₂(PO₄)₃/C and single rGO-incorporated Li₃V₂(PO₄)₃/C, the rGO-incorporated Li₃V_1.94Fe_0.06(PO₄)₃/C electrode has the highest initial capacity of 164.4 mA h g^-1 with a capacity retention ratio of 83.5% after 100 cycles at 1C. When charged/discharged for 1000 cycles at 5C, it exhibits a prominent capacity of 129.3 mA h g^-1 with a capacity retention ratio of 91.5% and a very low capacity fading of 0.0085% per cycle. The superior electrochemical performance of Fe-doped and rGO-incorporated Li₃V₂(PO₄)₃ can contribute to the reduced particle size, the improved electronic conductivity, and the increased Li-ion diffusion coefficient. We believe this novel co-modification with Fe-doping and rGO-incorporation is an efficient way for Li₃V₂(PO₄)₃ and any other polyanion cathode materials to realize their application in power lithium ion battery.

Original language	English
Pages (from-to)	10334-10340
Number of pages	7
Journal	RSC Advances
Volume	6
Issue number	13
DOIs	https://doi.org/10.1039/c5ra26636j
State	Published - 2016
Externally published	Yes

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title = "Superior rate performance of Li3V2(PO4)3 co-modified by Fe-doping and rGO-incorporation",

abstract = "Reduced graphene oxide (rGO) incorporated Li3V1.94Fe0.06(PO4)3/C cathode materials were successfully prepared by a sol-gel method. Compared with Li3V2(PO4)3/C and single rGO-incorporated Li3V2(PO4)3/C, the rGO-incorporated Li3V1.94Fe0.06(PO4)3/C electrode has the highest initial capacity of 164.4 mA h g-1 with a capacity retention ratio of 83.5% after 100 cycles at 1C. When charged/discharged for 1000 cycles at 5C, it exhibits a prominent capacity of 129.3 mA h g-1 with a capacity retention ratio of 91.5% and a very low capacity fading of 0.0085% per cycle. The superior electrochemical performance of Fe-doped and rGO-incorporated Li3V2(PO4)3 can contribute to the reduced particle size, the improved electronic conductivity, and the increased Li-ion diffusion coefficient. We believe this novel co-modification with Fe-doping and rGO-incorporation is an efficient way for Li3V2(PO4)3 and any other polyanion cathode materials to realize their application in power lithium ion battery.",

author = "Zhen Li and Zhang, {Lu Lu} and Yang, {Xue Lin} and Sun, {Hua Bin} and Huang, {Yun Hui} and Gan Liang",

note = "Publisher Copyright: {\textcopyright} 2016 The Royal Society of Chemistry.",

year = "2016",

doi = "10.1039/c5ra26636j",

language = "英语",

volume = "6",

pages = "10334--10340",

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T1 - Superior rate performance of Li3V2(PO4)3 co-modified by Fe-doping and rGO-incorporation

AU - Li, Zhen

AU - Zhang, Lu Lu

AU - Yang, Xue Lin

AU - Sun, Hua Bin

AU - Huang, Yun Hui

AU - Liang, Gan

PY - 2016

Y1 - 2016

N2 - Reduced graphene oxide (rGO) incorporated Li3V1.94Fe0.06(PO4)3/C cathode materials were successfully prepared by a sol-gel method. Compared with Li3V2(PO4)3/C and single rGO-incorporated Li3V2(PO4)3/C, the rGO-incorporated Li3V1.94Fe0.06(PO4)3/C electrode has the highest initial capacity of 164.4 mA h g-1 with a capacity retention ratio of 83.5% after 100 cycles at 1C. When charged/discharged for 1000 cycles at 5C, it exhibits a prominent capacity of 129.3 mA h g-1 with a capacity retention ratio of 91.5% and a very low capacity fading of 0.0085% per cycle. The superior electrochemical performance of Fe-doped and rGO-incorporated Li3V2(PO4)3 can contribute to the reduced particle size, the improved electronic conductivity, and the increased Li-ion diffusion coefficient. We believe this novel co-modification with Fe-doping and rGO-incorporation is an efficient way for Li3V2(PO4)3 and any other polyanion cathode materials to realize their application in power lithium ion battery.

AB - Reduced graphene oxide (rGO) incorporated Li3V1.94Fe0.06(PO4)3/C cathode materials were successfully prepared by a sol-gel method. Compared with Li3V2(PO4)3/C and single rGO-incorporated Li3V2(PO4)3/C, the rGO-incorporated Li3V1.94Fe0.06(PO4)3/C electrode has the highest initial capacity of 164.4 mA h g-1 with a capacity retention ratio of 83.5% after 100 cycles at 1C. When charged/discharged for 1000 cycles at 5C, it exhibits a prominent capacity of 129.3 mA h g-1 with a capacity retention ratio of 91.5% and a very low capacity fading of 0.0085% per cycle. The superior electrochemical performance of Fe-doped and rGO-incorporated Li3V2(PO4)3 can contribute to the reduced particle size, the improved electronic conductivity, and the increased Li-ion diffusion coefficient. We believe this novel co-modification with Fe-doping and rGO-incorporation is an efficient way for Li3V2(PO4)3 and any other polyanion cathode materials to realize their application in power lithium ion battery.

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Superior rate performance of Li₃V₂(PO₄)₃ co-modified by Fe-doping and rGO-incorporation

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