为了提高锰酸锂的比容量和循环性能,以四氧化三锰代替电解二氧化锰(EMD),同时进行元素掺杂,并利用正交实验法优化四氧化三锰和碳酸锂固相合成锰酸锂工艺。最终得到比容量110mA·h/g,常温25℃1C循环500次容量保持率为97.3%的锰酸锂产品。

In order to improve the specific capacity and cycle performance of LiMn_2O₄,Mn_3O₄ was used instead of EMD,and element doping was carried out at the same time.Orthogonal experiment was used to optimize the solid-state synthesis process of LiMn_2O₄ from Mn_3O₄ and lithium carbonate.Finally,LiMn_2O₄ with specific capacity of 110 mA·h/g and capacity retention rate of 97.3%for 500 cycles at 1 Crate at 25℃are obtained.