Hydrothermal growth of LiFePO4 'nano-seeds' directly on multi-walled carbon nanotube paper as cathode materials for lithium-ion batteries

POSTER

Abstract

Nanocomposite of LeFePO4/Multi-walled carbon nanotubes (MWCNTs) was prepared as cathode materials for Lithium ion batteries. First, a sheet of MWCNTs, so called ‘Buckypaper’ with uniform thickness was prepared by surface-engineered tape-casting technique which enables fabrication of strong stand-alone structured carbon nanotube (CNT) sheet with tunable thickness and composition. Secondly, LiFePO4 nano-seeds were grown on the surface of the MWCNTs by hydrothermal process. It was found that nanometer-scale LiFePO4 ellipsoids with good crystal quality were grown on the MWCNTs sheet and uniformly distributed. Size and distribution density of the LiFePO4 nano-seeds were controlled by the experimental conditions such as mixing ratio of precursor chemicals, temperature and time of hydrothermal process as well as pre-treatment of MWCNT sheets with Oxygen plasma. X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Raman spectroscopy were used to characterize the nanocomposite composed of LiFePO4 nano-seeds on MWCNT sheet. The electrochemical characterization of the cathode of LiFePO4/MWCNTs is in progress using a CR2025-type coin cell with lithium foil and anode.

Presenters

  • Daniel Choi

    Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology, Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology

Authors

  • Hamda Al Shibli

    Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology, Masdar Institute of Science and Technology, a part of Khalifa University of Science and Technology, Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology

  • Tawaddod Alkindi

    Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology, Masdar Institute of Science and Technology, a part of Khalifa University of Science and Technology, Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology

  • Amarsingh Kanagaraj

    Masdar Institute of Science and Technology, a part of Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology

  • Rahmat Susantyoko

    Masdar Institute of Science and Technology, a part of Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology

  • Boo Hyun An

    Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology, Masdar Institute of Science and Technology, a part of Khalifa University of Science and Technology, Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology

  • Saif Al Mheiri

    Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology

  • Daniel Choi

    Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology a Part of Khalifa University of Science and Technology, Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology, Mechanical and Materials Engineering, Masdar Institute of Science and Technology, A Part of Khalifa University of Science and Technology