Solvothermal synthesis and electrochemical performance of hollow LiFePO4 nanoparticles

Zhenmiao Zheng; Wei Kong Pang; Xincun Tang; Dianzeng Jia; Yudai Huang; Zaiping Guo

doi:10.1016/j.jallcom.2015.04.007

Solvothermal synthesis and electrochemical performance of hollow LiFePO₄ nanoparticles

Zhenmiao Zheng, Wei Kong Pang, Xincun Tang^*, Dianzeng Jia, Yudai Huang, Zaiping Guo

^*Corresponding author for this work

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

39 Citations (Scopus)

Abstract

Hollow LiFePO₄ nanoparticles were synthesized via a solvothermal technique, using ammonium tartrate as additive and carbon source, and ethylene glycol/water as solvent. The as-prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, scanning and transmission electron microscopies, and Brunauer-Emmett-Teller specific surface area measurements. The electrochemical properties of the LiFePO₄ cathode were examined in coin-type cell configuration and the cathode exhibited excellent rate capability (i.e., discharge capacity of 120.9 mA h g^-1 at 10 C) and cycling performance (i.e., >98% of capacity retention rate after 50 cycles). It is believed that the enhanced performance is correlated to the hollow structure, small crystallite and particle sizes, and relatively shorter lattice parameter b. © 2015 Elsevier B.V.

Original language	English
Pages (from-to)	95-100
Journal	Journal of Alloys and Compounds
Volume	640
DOIs	https://doi.org/10.1016/j.jallcom.2015.04.007
Publication status	Published - 15 Aug 2015
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 <a href="mailto:[email protected]">[email protected]</a>.

Funding

This work was supported by National Natural Science Foundation of China (Grant No. 21276286 ).

Research Keywords

Hollow
Lithium ion battery
Nanoparticles
Solvothermal

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Cite this

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title = "Solvothermal synthesis and electrochemical performance of hollow LiFePO4 nanoparticles",

abstract = "Hollow LiFePO4 nanoparticles were synthesized via a solvothermal technique, using ammonium tartrate as additive and carbon source, and ethylene glycol/water as solvent. The as-prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, scanning and transmission electron microscopies, and Brunauer-Emmett-Teller specific surface area measurements. The electrochemical properties of the LiFePO4 cathode were examined in coin-type cell configuration and the cathode exhibited excellent rate capability (i.e., discharge capacity of 120.9 mA h g-1 at 10 C) and cycling performance (i.e., >98% of capacity retention rate after 50 cycles). It is believed that the enhanced performance is correlated to the hollow structure, small crystallite and particle sizes, and relatively shorter lattice parameter b. {\textcopyright} 2015 Elsevier B.V.",

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AU - Zheng, Zhenmiao

AU - Pang, Wei Kong

AU - Tang, Xincun

AU - Jia, Dianzeng

AU - Huang, Yudai

AU - Guo, Zaiping

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N2 - Hollow LiFePO4 nanoparticles were synthesized via a solvothermal technique, using ammonium tartrate as additive and carbon source, and ethylene glycol/water as solvent. The as-prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, scanning and transmission electron microscopies, and Brunauer-Emmett-Teller specific surface area measurements. The electrochemical properties of the LiFePO4 cathode were examined in coin-type cell configuration and the cathode exhibited excellent rate capability (i.e., discharge capacity of 120.9 mA h g-1 at 10 C) and cycling performance (i.e., >98% of capacity retention rate after 50 cycles). It is believed that the enhanced performance is correlated to the hollow structure, small crystallite and particle sizes, and relatively shorter lattice parameter b. © 2015 Elsevier B.V.

AB - Hollow LiFePO4 nanoparticles were synthesized via a solvothermal technique, using ammonium tartrate as additive and carbon source, and ethylene glycol/water as solvent. The as-prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, scanning and transmission electron microscopies, and Brunauer-Emmett-Teller specific surface area measurements. The electrochemical properties of the LiFePO4 cathode were examined in coin-type cell configuration and the cathode exhibited excellent rate capability (i.e., discharge capacity of 120.9 mA h g-1 at 10 C) and cycling performance (i.e., >98% of capacity retention rate after 50 cycles). It is believed that the enhanced performance is correlated to the hollow structure, small crystallite and particle sizes, and relatively shorter lattice parameter b. © 2015 Elsevier B.V.

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