Improved rate and cycle performance of nano-sized 5LiFePO4·Li3V2(PO4)3/C via high-energy ball milling assisted carbothermal reduction

Liying Liu; Wenxue Xiao; Mingzhe Chen; Hua Chen; Yanyan Cui; Guoxun Zeng; Yiming Chen; Xi Ke; Zaiping Guo; Zhicong Shi; Haiyan Zhang; Shulei Chou

doi:10.1016/j.jallcom.2017.05.189

Improved rate and cycle performance of nano-sized 5LiFePO₄·Li₃V₂(PO₄)₃/C via high-energy ball milling assisted carbothermal reduction

Liying Liu
, Wenxue Xiao
, Mingzhe Chen
, Hua Chen
, Yanyan Cui
, Guoxun Zeng
, Yiming Chen
, Xi Ke
, Zaiping Guo
, Zhicong Shi^*
, Haiyan Zhang
, Shulei Chou

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

15 Citations (Scopus)

Abstract

Nano-sized 5LiFePO₄·Li₃V₂(PO₄)₃/C composite was synthesized via improved carbothermal reduction combined high-energy ball milling. XRD results reveal that the composite is composed of olivine LiFePO₄ and monoclinic Li₃V₂(PO₄)₃ phases. Meanwhile small amounts of V³⁺ and Fe²⁺ as dopants entered into the lattices of LiFePO₄ and Li₃V₂(PO₄)₃, respectively. Trace amounts of Fe₂O₃ in LiFePO₄/C and Fe₂P in 5LiFePO₄·Li₃V₂(PO₄)₃/C were identified and quantified by magnetic tests. And magnetic parameters of 5LiFePO₄·Li₃V₂(PO₄)₃/C are significantly different from LiFePO₄/C. The 5LiFePO₄·Li₃V₂(PO₄)₃/C presents initial discharge specific capacities of 145.2 mAh g⁻¹ and 133.9 mAh g⁻¹ and no capacity attenuations after 50 cycles can be observed at 2C and 5C respectively. Compared with LiFePO₄/C, its rate capability and cyclic stability are both enhanced greatly. The mutual doping, synergistical effect of LiFePO₄ and Li₃V₂(PO₄)₃ and contribution of Fe₂P are mainly responsible for the excellent electrochemical performances. © 2017

Original language	English
Pages (from-to)	281-287
Journal	Journal of Alloys and Compounds
Volume	719
DOIs	https://doi.org/10.1016/j.jallcom.2017.05.189
Publication status	Published - 2017
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by the National Natural Science Foundation of China (NNSFC) (21673051), the Guangdong Province Science & Technology Bureau (2013B051000077, 2014A010106029, 2014B010106005, 2014A010305086, 2016A010104015), the Guangzhou Science & Innovative Committee (201604030037), the Youth Foundation of Guangdong University of Technology (252151038), the link project of the National Natural Science Foundation of China and Guangdong Province (U1401246), the Science and Technology Program of Guangzhou City of China (201508030018, 201604030037), the National Natural Science Foundation of China (51276044, 20971027).

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

Carbothermal reduction
Composite cathode material
Li3V2(PO4)3
LiFePO4
Lithium ion battery

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Cite this

@article{1f64d14a7d394a138dc5581c968c540b,

title = "Improved rate and cycle performance of nano-sized 5LiFePO4·Li3V2(PO4)3/C via high-energy ball milling assisted carbothermal reduction",

abstract = "Nano-sized 5LiFePO4·Li3V2(PO4)3/C composite was synthesized via improved carbothermal reduction combined high-energy ball milling. XRD results reveal that the composite is composed of olivine LiFePO4 and monoclinic Li3V2(PO4)3 phases. Meanwhile small amounts of V3+ and Fe2+ as dopants entered into the lattices of LiFePO4 and Li3V2(PO4)3, respectively. Trace amounts of Fe2O3 in LiFePO4/C and Fe2P in 5LiFePO4·Li3V2(PO4)3/C were identified and quantified by magnetic tests. And magnetic parameters of 5LiFePO4·Li3V2(PO4)3/C are significantly different from LiFePO4/C. The 5LiFePO4·Li3V2(PO4)3/C presents initial discharge specific capacities of 145.2 mAh g−1 and 133.9 mAh g−1 and no capacity attenuations after 50 cycles can be observed at 2C and 5C respectively. Compared with LiFePO4/C, its rate capability and cyclic stability are both enhanced greatly. The mutual doping, synergistical effect of LiFePO4 and Li3V2(PO4)3 and contribution of Fe2P are mainly responsible for the excellent electrochemical performances. {\textcopyright} 2017",

keywords = "Carbothermal reduction, Composite cathode material, Li3V2(PO4)3, LiFePO4, Lithium ion battery",

author = "Liying Liu and Wenxue Xiao and Mingzhe Chen and Hua Chen and Yanyan Cui and Guoxun Zeng and Yiming Chen and Xi Ke and Zaiping Guo and Zhicong Shi and Haiyan Zhang and Shulei Chou",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2017",

doi = "10.1016/j.jallcom.2017.05.189",

language = "English",

volume = "719",

pages = "281--287",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Improved rate and cycle performance of nano-sized 5LiFePO4·Li3V2(PO4)3/C via high-energy ball milling assisted carbothermal reduction

AU - Liu, Liying

AU - Xiao, Wenxue

AU - Chen, Mingzhe

AU - Chen, Hua

AU - Cui, Yanyan

AU - Zeng, Guoxun

AU - Chen, Yiming

AU - Ke, Xi

AU - Guo, Zaiping

AU - Shi, Zhicong

AU - Zhang, Haiyan

AU - Chou, Shulei

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2017

Y1 - 2017

N2 - Nano-sized 5LiFePO4·Li3V2(PO4)3/C composite was synthesized via improved carbothermal reduction combined high-energy ball milling. XRD results reveal that the composite is composed of olivine LiFePO4 and monoclinic Li3V2(PO4)3 phases. Meanwhile small amounts of V3+ and Fe2+ as dopants entered into the lattices of LiFePO4 and Li3V2(PO4)3, respectively. Trace amounts of Fe2O3 in LiFePO4/C and Fe2P in 5LiFePO4·Li3V2(PO4)3/C were identified and quantified by magnetic tests. And magnetic parameters of 5LiFePO4·Li3V2(PO4)3/C are significantly different from LiFePO4/C. The 5LiFePO4·Li3V2(PO4)3/C presents initial discharge specific capacities of 145.2 mAh g−1 and 133.9 mAh g−1 and no capacity attenuations after 50 cycles can be observed at 2C and 5C respectively. Compared with LiFePO4/C, its rate capability and cyclic stability are both enhanced greatly. The mutual doping, synergistical effect of LiFePO4 and Li3V2(PO4)3 and contribution of Fe2P are mainly responsible for the excellent electrochemical performances. © 2017

AB - Nano-sized 5LiFePO4·Li3V2(PO4)3/C composite was synthesized via improved carbothermal reduction combined high-energy ball milling. XRD results reveal that the composite is composed of olivine LiFePO4 and monoclinic Li3V2(PO4)3 phases. Meanwhile small amounts of V3+ and Fe2+ as dopants entered into the lattices of LiFePO4 and Li3V2(PO4)3, respectively. Trace amounts of Fe2O3 in LiFePO4/C and Fe2P in 5LiFePO4·Li3V2(PO4)3/C were identified and quantified by magnetic tests. And magnetic parameters of 5LiFePO4·Li3V2(PO4)3/C are significantly different from LiFePO4/C. The 5LiFePO4·Li3V2(PO4)3/C presents initial discharge specific capacities of 145.2 mAh g−1 and 133.9 mAh g−1 and no capacity attenuations after 50 cycles can be observed at 2C and 5C respectively. Compared with LiFePO4/C, its rate capability and cyclic stability are both enhanced greatly. The mutual doping, synergistical effect of LiFePO4 and Li3V2(PO4)3 and contribution of Fe2P are mainly responsible for the excellent electrochemical performances. © 2017

KW - Carbothermal reduction

KW - Composite cathode material

KW - Li3V2(PO4)3

KW - LiFePO4

KW - Lithium ion battery

UR - https://www.scopus.com/pages/publications/85019836233

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85019836233&origin=recordpage

U2 - 10.1016/j.jallcom.2017.05.189

DO - 10.1016/j.jallcom.2017.05.189

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 719

SP - 281

EP - 287

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -