以LiOH@H2O和MnO2为原料,分别掺入H3BO3、Al 2O3、SiO2和P2O5等添加剂,用固相分段法制备尖晶石型锰酸锂.结果表明,SiO2和P2O5可以有效地改善LiMn2O4的电化学性能,H3BO3对锰酸锂的电化学性能影响不大,而Al2O 3破坏了LiMn2O4的电化学性能.面扫描结果显示,Si或P元素各自都均匀地分散于LiMn2O4的物相中.从元素电负性和原子半径的角度分析了B、Si、P和Al元素对尖晶石型LiMn2O4结构和性能的影响.
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