In this study, soybean oil, which is used in a large variety of processed foods, is used as a carbon source. Soybean oil is successfully coated onto the surface of LiNi1/ 3Co1/3Mn1/3O2 (NCM) by a simple method. The physical and electrochemical properties of NCM/C hybrid materials are determined. As a result, a 5 nm thickness carbon coating layer is formed on the surface of the NCM, resulting in improved capability and cyclic performance in the battery. The NCM/C battery shows an initial discharge capacity of 159 mAh g−1 and 95% capacity retention after 100 cycles (a discharge capacity of 120 mAh g−1 and 94% retention are observed after 100 cycles for the NCM cathode).

    Abstract
    1 Introduction
    2 Experimental section
    3 Results and discussion
    4 Conclusions
    Acknowledgements 
    References

• Van Hiep Nguyen(Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
• Minh Duc Ngo(Faculty of Electrical Engineering, Thai Nguyen University of Technology)
• Young Ho Kim(Department of Chemical Engineering and Applied Chemistry, Chungnam National University)