Li(Ni_0.6Co_0.2Mn_0.2)O₂ was synthesized by a novel modified sol-gel method, which is simpler and more efficient than the traditional sol-gel method. Different from the traditional sol-gel method to generate chelate-gel, the mechanism of modified sol-gel method is to utilize the esterification reaction between citric acid chelate and ethanol to spontaneously generate more homogeneous esterified-gel. Compared with the traditional sol-gel method, the samples prepared by modified sol-gel method showed better layered crystal structure and more uniform morphology. Additionally, electrochemical tests illustrated that the modified method can also synthesize electrode materials with excellent electrochemical properties. The initial discharge capacity could reach 223.7 mAh/g at 0.1 C rate. At 1 C rate, the initial discharge capacity was 144.9 mAh/g, after 50 cycles, it still had a capacity retention rate of 80.6%.

Li(Ni _0.6 Co _0.2 Mn _0.2 )O ₂采用新型改良的溶胶-凝胶法合成，比传统的溶胶-凝胶法更简单、更高效。不同于传统的溶胶-凝胶法生成螯合凝胶，改良溶胶-凝胶法的机理是利用柠檬酸螯合物与乙醇的酯化反应自发生成更均匀的酯化凝胶。与传统的溶胶-凝胶法相比，改进的溶胶-凝胶法制备的样品具有更好的层状晶体结构和更均匀的形貌。此外，电化学测试表明，改进的方法还可以合成具有优异电化学性能的电极材料。在 0.1 C 倍率下，初始放电容量可达到 223.7 mAh/g。1 C倍率下，50次循环后初始放电容量为144.9 mAh/g，