粉末微电极循环伏安法快速评价LiCoO_2合成条件研究  

Rapid Evaluation of Synthesis Conditions of LiCoO_2 by Powder Microelectrode Cyclic Voltammetry Method

作　　者：徐秋红[1] 常照荣[2] 张士国[1] 

机构地区：[1]滨州学院化学与化工系,山东滨州256603 [2]河南师范大学化学与环境科学学院,河南新乡453007

出　　处：《河南师范大学学报（自然科学版）》2009年第5期89-93,共5页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金(20671031);滨州学院科研基金项目(BZXYLG200714)

摘　　要：在空气气氛下,以自制的结晶度高的-βCo(OH)2为前驱体,固相合成了锂离子电池正极材料LiCoO2.通过粉末微电极循环伏安法快速评价了固相合成条件对LiCoO2循环伏安性能的影响.研究结果表明:原料预处理方式、锂钴初始摩尔比、煅烧温度和时间对LiCoO2的循环伏安性能有较显著的影响,而研磨时间、锂源等影响相对较小.The positive material LiCoO2, for lithium ion battery is synthesized by solid state reaction through home--made β-Co（OH）2 as precursor. The effects of synthesis conditions on cyclic vohammetry are evaluated rapidly by powder microelec trode cyclic voltammetry method, The results showe that pretreatment method, the initial Li/Co mole ratio, calcination temperatures and time have significant effects on cyclic voltammctry of LiCoO2 while grinding time, lithium resources have minor influences on it.

关 键 词：LICOO2 锂离子电池 正极材料 粉末微电极 

分 类 号：TM912.9[电气工程—电力电子与电力传动]