采用铝盐与尖晶石LiMn2O4的高温固相反应, 制备出改性的尖晶石锂锰氧化物材料.对材料进行了XRD和SEM分析及电性能等测试. 结果表明: 改性材料均基本保持了尖晶石主体结构;材料表面形貌与铝盐阴离子根极性强弱有关, 改性前的LiMn2O4在50 ℃下10次循环后, 容量衰减率为24.4%,而由铝盐酸性后材料的在8.3%～16%, 其中草酸铝对材料高温循环性能改善最为明显.
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