Hollow Li2FeSiO4 spheres as cathode and anode material for lithium-ion battery

Chun Han Hsu; Tai Ran Du; Chih Hao Tsao; Hong Ping Lin; Ping Lin Kuo

doi:10.1016/j.jallcom.2019.05.221

Hollow Li₂FeSiO₄ spheres as cathode and anode material for lithium-ion battery

Chun Han Hsu, Tai Ran Du, Chih Hao Tsao, Hong Ping Lin, Ping Lin Kuo

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

11 Citations (Scopus)

Abstract

Hollow Li₂FeSiO₄ spheres have been successfully prepared using hollow silica spheres as both reactant and template, for which the thickness of the nanoscale Li₂FeSiO₄ thin shells are about 50 nm. Then, the hollow Li₂FeSiO₄ spheres were coated by phenolic resin as a carbon precursor to obtain the hollow Li₂FeSiO₄/Carbon sphere (HLFS/C) composite. The structure characterizations by X-ray diffraction, transmission electron microscopy and scanning electron microscopy show that the HLFS/Cs are hollow structures with high purity. When used as the cathode material under charge/discharge rates at 0.05C (1C = 166 mAh g⁻¹), the HLFS/C exhibited a capacity of 155 mAh g⁻¹ with good cycle stability. Furthermore, the HLFS exhibited capacities of 820, 650 and 420 mAh g⁻¹ for 0.15C, 0.3C and 0.6C rates for anode application, respectively, with good cycle stability. The hollow structure of HLFS/C enables us to overcome the aggregation and structural instability problems, which is essential for the improvement of the electrochemical performance.

Original language	English
Pages (from-to)	1007-1012
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	797
DOIs	https://doi.org/10.1016/j.jallcom.2019.05.221
Publication status	Published - 2019 Aug 15

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

UN SDGs

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

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10.1016/j.jallcom.2019.05.221

Cite this

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title = "Hollow Li2FeSiO4 spheres as cathode and anode material for lithium-ion battery",

abstract = "Hollow Li2FeSiO4 spheres have been successfully prepared using hollow silica spheres as both reactant and template, for which the thickness of the nanoscale Li2FeSiO4 thin shells are about 50 nm. Then, the hollow Li2FeSiO4 spheres were coated by phenolic resin as a carbon precursor to obtain the hollow Li2FeSiO4/Carbon sphere (HLFS/C) composite. The structure characterizations by X-ray diffraction, transmission electron microscopy and scanning electron microscopy show that the HLFS/Cs are hollow structures with high purity. When used as the cathode material under charge/discharge rates at 0.05C (1C = 166 mAh g−1), the HLFS/C exhibited a capacity of 155 mAh g−1 with good cycle stability. Furthermore, the HLFS exhibited capacities of 820, 650 and 420 mAh g−1 for 0.15C, 0.3C and 0.6C rates for anode application, respectively, with good cycle stability. The hollow structure of HLFS/C enables us to overcome the aggregation and structural instability problems, which is essential for the improvement of the electrochemical performance.",

author = "Hsu, {Chun Han} and Du, {Tai Ran} and Tsao, {Chih Hao} and Lin, {Hong Ping} and Kuo, {Ping Lin}",

note = "Funding Information: The authors would like to thank the Ministry of Science and Technology, Taiwan for their generous financial support of this research. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

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doi = "10.1016/j.jallcom.2019.05.221",

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T1 - Hollow Li2FeSiO4 spheres as cathode and anode material for lithium-ion battery

AU - Hsu, Chun Han

AU - Du, Tai Ran

AU - Tsao, Chih Hao

AU - Lin, Hong Ping

AU - Kuo, Ping Lin

N1 - Funding Information: The authors would like to thank the Ministry of Science and Technology, Taiwan for their generous financial support of this research. Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/8/15

Y1 - 2019/8/15

N2 - Hollow Li2FeSiO4 spheres have been successfully prepared using hollow silica spheres as both reactant and template, for which the thickness of the nanoscale Li2FeSiO4 thin shells are about 50 nm. Then, the hollow Li2FeSiO4 spheres were coated by phenolic resin as a carbon precursor to obtain the hollow Li2FeSiO4/Carbon sphere (HLFS/C) composite. The structure characterizations by X-ray diffraction, transmission electron microscopy and scanning electron microscopy show that the HLFS/Cs are hollow structures with high purity. When used as the cathode material under charge/discharge rates at 0.05C (1C = 166 mAh g−1), the HLFS/C exhibited a capacity of 155 mAh g−1 with good cycle stability. Furthermore, the HLFS exhibited capacities of 820, 650 and 420 mAh g−1 for 0.15C, 0.3C and 0.6C rates for anode application, respectively, with good cycle stability. The hollow structure of HLFS/C enables us to overcome the aggregation and structural instability problems, which is essential for the improvement of the electrochemical performance.

AB - Hollow Li2FeSiO4 spheres have been successfully prepared using hollow silica spheres as both reactant and template, for which the thickness of the nanoscale Li2FeSiO4 thin shells are about 50 nm. Then, the hollow Li2FeSiO4 spheres were coated by phenolic resin as a carbon precursor to obtain the hollow Li2FeSiO4/Carbon sphere (HLFS/C) composite. The structure characterizations by X-ray diffraction, transmission electron microscopy and scanning electron microscopy show that the HLFS/Cs are hollow structures with high purity. When used as the cathode material under charge/discharge rates at 0.05C (1C = 166 mAh g−1), the HLFS/C exhibited a capacity of 155 mAh g−1 with good cycle stability. Furthermore, the HLFS exhibited capacities of 820, 650 and 420 mAh g−1 for 0.15C, 0.3C and 0.6C rates for anode application, respectively, with good cycle stability. The hollow structure of HLFS/C enables us to overcome the aggregation and structural instability problems, which is essential for the improvement of the electrochemical performance.

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