Electrochemical Characterization of Al3+ Doped Spinel Cathode Active Nanoparticles for Li-Ion Batteries

E. Buluta, M. Canb, M. Özacara and H. Akbulutc aSakarya University, Chemistry Department, 54187, Sakarya, Turkey bSakarya University, Vocational School of Arifiye, 54580, Arifiye, Sakarya, Turkey cSakarya University, Metallurgical and Materials Engineering, 54187, Sakarya, Turkey

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Al3+ doped spinel structured cathode active nanoparticles were produced by microwave hydrothermal synthesis. Structural characterization of as synthesized nanoparticles was performed by X-Ray Diffraction (XRD) Spectroscopy and Scanning Electron Microscopy (SEM). Electrochemical characteristics of the material have been investigated by packaging cell material into a CR 2016 button cells. All electrochemical experiments were carried out using lithium metal foil as the counter electrode. First discharge capacitiy of doped material is 303 mAh/g at 0.1 C rate. We have obtained 69 mAh/g specific capacity and 98.7 percent capacity retention for the first cycle at 0.5 C rate.

DOI: 10.12693/APhysPolA.129.631 PACS numbers: 82.47.Aa