正交实验法优选尖晶石Li_xCo_yNi_zMn_(2-y-z)O_4的原料配比  

Optimizing ratios of raw materials of spinel Li_xCo_yNi_zMn_(2-y-z)O_4 by orthogonal design

作　　者：刘晋[1] 王光彦[1] 廖莉玲[1] 卫钢 

机构地区：[1]贵州师范大学化学与材料科学学院,贵州贵阳550001 [2]联邦科学与工业研究组织材料科学与工程分部

出　　处：《贵州师范大学学报（自然科学版）》2012年第3期97-100,共4页Journal of Guizhou Normal University：Natural Sciences

基　　金：贵州省科技厅与贵州师范大学联合基金(黔科合J字LKS[2009]38号)

摘　　要：通过正交实验法,采用流变相法制备了LixCoyNizMn2-y-zO4的25个样品(x=1、1.02、1.04、1.06、1.08,y=0、0.025、0.05、0.075、0.1,z=0、0.025、0.05、0.075、0.1),并对其电化学性能进行了研究从而选择出最佳原料配比。实验结果表明从首次放电比容量来考察LiCo0.05Mn1.95O4的性能最好,从第20次容量保持率来考察Li1.06Co0.1Ni0.075Mn1.825O4的性能最好。Twenty five different samples like LixCoyNizMn2-y-zO4（as x is 1,1.02,1.04,1.06 or 1.08,y is 0,0.025,0.05,0.075 or 0.1 and z is 0,0.025,0.05,0.075 or 0.1）were synthesized by the rheological phase reaction method. The electrochemical properties of these samples were also investigated. The results showed that LiCo0.05Mn1.95O4 had the best initial discharge capacity and Li1.06Co0.075Mn1.825O4 had the best cycle stability.

关 键 词：锂离子电池 尖晶石型LIMN2O4 流变相法 电化学性能 正交实验 

分 类 号：O657[理学—分析化学]