Comparison of Electrochemical Properties for Lithium-rich Cathode Material Li[Li0.2Mn0.54Ni0.13Co0.13]O2 Prepared by Two Methods

Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 materials for lithium-ion battery have been successfully synthesized by gel-combustion (GC) and sol-gel (SG) methods. The as-prepared materials were characterized by XRD, SEM and electrochemical measurements. The XRD patterns show that the Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 materials obtained from different methods both form a pure phase with well crystallization. SEM images present that Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 obtained from gel-combustion method (GC-material) exhibited the relatively uniform distribution in particle size. The results of electrochemical measurements indicate that the GC-material showed the higher discharge capacity at 0.1C and lower solid electrolyte interface resistance and charge transfer resistance, while, the cycling stability of GC-material tested at 0.1C is relatively poor as compared to that of Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 obtained from sol-gel method (SG-material).