(中南大学 冶金科学与工程系，长沙 410083)
摘 要: 采用激光衍射，BET，XRD，SEM等方法，研究了系列LiCoO2正极材料的一些物理化学性能及其与锂离子电池电压特性的关系，并对由3种LiCoO2样品制成的试验电池进行了电压特性和循环寿命的测试，得出了制备有良好电压特性的锂离子电池用LiCoO2正极材料所应具备的性能：XRD谱线中I003/I104的值较大，颗粒分布均匀无团聚，表面光滑平整。
关键字: LiCoO2；锂离子电池；电压特性
performances of lithium cobalt oxide
and voltage characteristics of
lithium-ion battery
（Department of Metallurgical Science and Engineering，
Central South University，Changsha 410083，China）
Abstract:Some physical and chemical performances of lithium cobalt oxide cathode material and the relationship between them and lithium-ion battery were studied by using several techniques including laser diffraction, BET, XRD, SEM. The experimental lithium-ion batteries using these LiCoO2 samples were tested to evaluate their voltage characteristics and life-span. It is found that the LiCoO2 cathode material for manufacturing a lithium-ion battery with good voltage characteristics may have performance as follows: very high value of I003/I104 in XRD patterns; even particle distribution without gathering and smooth surface.
Key words: lithium cobalt oxide; lithium-ion battery; voltage characteristics
