(中南大學(xué) 冶金科學(xué)與工程系，長(zhǎng)沙 410083)
摘 要: 采用激光衍射，BET，XRD，SEM等方法，研究了系列LiCoO2正極材料的一些物理化學(xué)性能及其與鋰離子電池電壓特性的關(guān)系，并對(duì)由3種LiCoO2樣品制成的試驗(yàn)電池進(jìn)行了電壓特性和循環(huán)壽命的測(cè)試，得出了制備有良好電壓特性的鋰離子電池用LiCoO2正極材料所應(yīng)具備的性能：XRD譜線中I003/I104的值較大，顆粒分布均勻無(wú)團(tuán)聚，表面光滑平整。
關(guān)鍵字: LiCoO2；鋰離子電池；電壓特性
performances of lithium cobalt oxide
and voltage characteristics of
lithium-ion battery
GUO Hua-jun，WANG Hong-qiang
（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
