【摘要】 微波 高分子网络技术 (m p)作为一种新方法合成可充锂离子电池负极材料的同时 ,也被用于制备良好结晶的LiMxMn2 O4(M =La ,Nd ,Y)。XRD测试结果表明 ,用此法可合成尖晶石LiMn2 O4及掺杂LiMn2 O4。通过电化学测试证明 ,所合成样品的容量高 ,循环效率高。循环伏安及计时电量数据表明Li+在LiMxMn2 O4中嵌入 /脱嵌更容易。最后通过磁性测试对Li+在LiMxMn2 O4中的扩散行为作了说明。更多还原

【Abstract】 A new process,microwave polymer network (m p) process was developed for preparing cathod material of chargeable lithium cell, while, well crystallized doped LiM x Mn 2O 4 (M=La, Nd, Y) was prepared by the process. XRD results showed that fine crystallinity spinel of pure and doped LiMn 2O 4 could be prepared by m p process. Electrochemistry tests proved the the samples had better capacity and cycling efficiency. Cyclic voltammograms and chronoamperometric data indicated that Li + extracted and inserted more easily in LiM x Mn 2O 4. Finally the diffusion behavior of Li + in LiM x Mn 2O 4 was conducted by magnitic test.更多还原