喷雾热分解制备LiNixC012xMnxO2及电化学性能研究.pdf

·260· 材料导报 刘智敏，刘业翔，胡国荣，邓新荣，高旭光，肖政伟 (中南大学冶金科学与工程学院，长沙410083) 摘要 SEM、XRD、ICP、扣式电池测试等方法对材料的结构和性能进行了表征。测试结果表明，喷雾热分解合成的材料Li- 含量复合氧化物材料比低Co含量材料的首次充放电比容量稍高，同时倍率性能和循环性能也得到一定的改善。 关键词 球形Li[Ni。Col—z：Mnz]Oz喷雾热分解锂离子电池 中图分类号：T1334 文献标识码：A andElectrochemicalCharacterizationof Synthesis PreparedbySprayPyrolysis LIUZhimin，LIU Yexiang，HUGuorong，DENGXinrong， GAO Zhengwei Xuguang，XIAO Scienceand South 410083) (Schoolof University，Changsha Metallurgy Engineering，Central AbstractThe are sprayPY— layeredLiI-NLCo卜缸Mm]02(z—o．25、0．33、0．4，0．5)materialssynthesizedby characterizedmeansof testsetc testre— methods。and by SEM，XRD，ICP，charge／dischargetechniques．The rolysis andthechemicalcontentof is suitsshowthat is samples sphericalLi[Ni．Col一2，Mm]()2preparedbyspraypyrolysis andc wellcontrolled．AstheCocontent lattice of decreasedin丑axis increases，theparametersLi[-Ni。C01一缸M毗]Q result thattheCocontentcan the structure，andreduce axis，butI003／I104increased．Theindicate stabilifylayered on show Cocon— structuraldisorderbetweenNi2+andLi+．Theresultsoftheelectrochemicaltests2025coin-cells