Uniform Li1.2Ni0.13Co0.13Mn0.54O2 hollow microspheres with improved electrochemical performance by a facile solvothermal method for lithium ion batteries

We designed a facile solvothermal method to prepare Li1.2Ni0.13Co0.13Mn0.54O2 hollow microspheres with considerable uniformity and monodispersity. In this method, lithium ions and transition metal are precipitated simultaneously in the ethanol-PEG mixed solvent system to form carbonate precursors, which subsequently transform into self-assembled hollow microspheres by a heat treatment. As cathode material for LIBs, Li1.2Ni0.13Co0.13Mn0.54O2 hollow microspheres exhibit remarkable cycling stability and excellent rate capability with improved electrochemical kinetics properties.321