Synthesis of Nano Flaky Li1-xNaxMn2O4 and Its Electrochemical Performance
Synthesis of Nano Flaky Li1-xNaxMn2O4 and Its Electrochemical Performance
复制标题
纳米片状Li1-xNaxMn2O4的合成及其电化学性能
DOI：
10.1166/nnl.2019.2982
复制
发表时间：
2019
影响因子：
--
通讯作者：
Xu Lijian
中科院分区：
文献类型：
--
作者：
Jiang Jianbing;Deng Haojie;Li Wei;Yu Linyu;Liu Qilong;Xu Lijian
采用固相法成功地制备出了纳米Li_（1-x）Na_xMn_2 O_4。采用X射线衍射（XRD）、扫描电子显微镜（SEM）和电化学性能测试等手段对Li 1-xNaxMn 2 O 4的性能进行了研究。钠离子取代并不改变LiMn 2 O 4的基本尖晶石结构，但会影响其倍率性能。钠的替代提高了其在大电流密度下的首次放电容量。特别是Li_（0.94）Na_（0.06）Mn_2 O_4，在15 C倍率下循环300次后，放电容量仍达到93.1mAh/g。
The application of a solid state method has led to the successful preparation of nano flaky Li1–x Na x Mn2O4. X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical performance test were carried out to study the performances of Li1–x Na x Mn2O4. Sodium substitution does not change the basic spinel structure, but influences the rate performance of LiMn2O4. Sodium substitution enhanced its initial discharge capacity at large current density. Especially for Li0.94Na0.06Mn2O4, it still delivered a discharge capacity of 93.1 mAh/g at 15 C rate after 300 cycles.