Abstract
A simple solid-state method has been successfully applied to synthesize a LiNi 1/3Co 1/3Mn 1/3O 2 cathode material. Powder X-ray diffraction results indicate that the suitable temperature of synthesizing LiNi 1/3Co 1/3Mn 1/3O 2 is 850–900 °C, lower than proposed in other reports. The charge–discharge tests are performed at 1000 mAg −1 in a potential range of 2.5–4.5 V. The average full-charge time is within 6 min. The discharge capacity of the material is significantly influenced by raw materials and reaction temperature. The sample calcined at 900 °C using α-MnO 2 nanorods as the raw material shows the best electrochemical performance. It is attributed to the highly ordered layer structure and the lowest degree of cation mixing, being improved by nanorod MnO 2, which facilitates the diffusion of Li + in the compounds. Thus, this simple solid-state method using α-MnO 2 nanorods as the raw material is a good route for synthesizing LiNi 1/3Co 1/3Mn 1/3O 2 as the cathode material of lithium power batteries.
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