Synthesis of LiFePO4/Li2SiO3/reduced Graphene Oxide (rGO) Composite via Hydrothermal Method

6th Asian Physics Symposium

Arifin, M.^1 ; Iskandar, F.^1,2 ; Aimon, A.H.^1 ; Munir, M.M.^1 ; Nuryadin, B.W.^3

Department of Physics, Institut Teknologi Bandung, Bandung

40132, Indonesia^1

Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung, Bandung

40132, Indonesia^2

Department of Physics, Faculty of Science and Technology, UIN Sunan Gunung Djati, Bandung

40614, Indonesia^3

关键词: Cathode active material;    Electrochemical performance;    Hydrothermal methods;    Intrinsic electronics;    Ionic diffusion;    Reduced graphene oxides (RGO);    Scanning electron microscopy image;    Single phase;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/739/1/012087/pdf
DOI  :  10.1088/1742-6596/739/1/012087

来源: IOP

【 摘 要 】

LiFePO4is a type of cathode active material used for lithium ion batteries. It has a high electrochemical performance. However, it suffers from certain disadvantages such as a very low intrinsic electronic conductivity and low ionic diffusion. This study was conducted to increase the conductivity of LiFePO4. We have investigated the addition of Li2SiO3 and reduced graphene oxide (rGO) to LiFePO4. The objective of this research was to synthesize LiFePO4/Li2SiO3/rGO via hydrothermal method. Fourier transform infrared spectroscopy (FTIR) measurement showed that the peaks corresponded to the vibration of LiFePO4/Li2SiO3. Further, X-ray diffraction (XRD) measurement confirmed a single phase of LiFePO4. Finally, scanning electron microscopy (SEM) images showed that rGO was distributed on the LiFePO4/Li2SiO3structure.