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Polypyrrole-coated α-LiFeO2 nanocomposite with enhanced electrochemical properties for lithium-ion batteries

Journal Article


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Abstract


  • A conducting alpha-LiFeO2-polypyrrole (alpha-LiFeO2-PPy) nanocomposite material was prepared by the chemical polymerization method as a cathode material for lithium-ion batteries. The porous alpha-LiFeO2 was prepared via the microwave hydrothermal method and a post-annealing. The X-ray diffraction, Fourier transform infrared spectroscopy, and field emission scanning electron microscopy measurements showed that the alpha-LiFeO2 nanoparticles were coated with PPy. The polypyrrole coating improves the reversible capacity and cycling stability (104 mAh g(-1) at 0.1C after 100 cycles) for lithium-ion batteries. Even at the high rate of 10C, the electrode showed more than 40% of the capacity at low rate (0.1C).

Publication Date


  • 2013

Citation


  • Zhang, Z., Wang, J., Chou, S., Liu, H. K., Ozawa, K. & Li, H. (2013). Polypyrrole-coated α-LiFeO2 nanocomposite with enhanced electrochemical properties for lithium-ion batteries. Electrochimica Acta, 108 820-826.

Scopus Eid


  • 2-s2.0-84880888190

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2756&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1747

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 820

End Page


  • 826

Volume


  • 108

Place Of Publication


  • United Kingdom

Abstract


  • A conducting alpha-LiFeO2-polypyrrole (alpha-LiFeO2-PPy) nanocomposite material was prepared by the chemical polymerization method as a cathode material for lithium-ion batteries. The porous alpha-LiFeO2 was prepared via the microwave hydrothermal method and a post-annealing. The X-ray diffraction, Fourier transform infrared spectroscopy, and field emission scanning electron microscopy measurements showed that the alpha-LiFeO2 nanoparticles were coated with PPy. The polypyrrole coating improves the reversible capacity and cycling stability (104 mAh g(-1) at 0.1C after 100 cycles) for lithium-ion batteries. Even at the high rate of 10C, the electrode showed more than 40% of the capacity at low rate (0.1C).

Publication Date


  • 2013

Citation


  • Zhang, Z., Wang, J., Chou, S., Liu, H. K., Ozawa, K. & Li, H. (2013). Polypyrrole-coated α-LiFeO2 nanocomposite with enhanced electrochemical properties for lithium-ion batteries. Electrochimica Acta, 108 820-826.

Scopus Eid


  • 2-s2.0-84880888190

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2756&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1747

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 820

End Page


  • 826

Volume


  • 108

Place Of Publication


  • United Kingdom