Author(s)

Shixi Yu, Xiaoyuan Yu, Dan Shao, Guoen Luo

Institute of Biomaterial, College of Science, South China Agricultural University, Guangzhou, 510642, China.
Institute of Biomaterial, College of Science, South China Agricultural University, Guangzhou, 510643, China.
Institute of Biomaterial, College of Science, South China Agricultural University, Guangzhou, 510644, China.
Institute of Biomaterial, College of Science, South China Agricultural University, Guangzhou, 510645, China.

The layered LiNi1/3Co1/3Mn1/3O2 cathode materials for Lithium-ion Battery was synthesized using a nickel-cobalt-manganese precursor obtained by the chemical co-precipitation reaction from NH4HCO3+Na2CO3 precipitant, respectively. The samples were characterized by X-ray diffraction (XRD), scanning electron micrograph (SEM), and charge/discharge tests. Effects of reaction temperature on the structures、morphologies and properties of LiNi1/3Co1/3Mn1/3O2 cathode materials are discussed. The results show that the LiNi1/3Co1/3Mn1/3O2 cathode synthesized at 950℃possesses good electrochemical performance. And the initial discharge capacity of 190.29mAh g-1 was obtained in the voltage range of 2.5-4.6V and at 0.1C current rate at 25℃. The discharge capacities remained 84.8% of the initial capacities after 20 cycles.

lithium-ion battery; cathode material; Layered LiNi1/3Co1/3Mn1/3O2, electrochemical performance, reaction temperature