Spinel-layered Li₂MnTiO₄₊z cathode material for Li-ion batteries prepared by a sol-gel method

Abstract

Herein, the sol-gel method is conducted to synthesize the spinel-layered Li₂MnTiO₄₊z: (0.5Li₂MnTiO₄₊z*0.5Li₂MnTiO₄₊z>Ti0.5>O₃) nanoparticles as a cathode material for Li-ion batteries. The structural and electrochemical properties of the material are investigated by means of X-ray diffraction, scanning electron microscopy, electrochemical impedance spectroscopy, and charge-discharge tests. The obtained sample shows a high capacity of 200 mAh g⁻¹ with a capacity retention of 90 % after 60 cycles at C/5.