Facile synthesis and Li-ion storage properties of porous Mn-based oxides microspheres
Facile synthesis and Li-ion storage properties of porous Mn-based oxides microspheres
复制标题
多孔锰基氧化物微球的简便合成及其锂离子储存性能
DOI：
10.1016/j.apsusc.2017.01.272
复制
发表时间：
2017-05-15
影响因子：
6.7
通讯作者：
Xue, Chenyang
中科院分区：
文献类型：
--
作者：
Hou, Xiaojuan;Zhu, Jie;Xue, Chenyang
在不添加表面活性剂的情况下，采用相同的简单溶剂热方法，通过煅烧工艺合成了直径约为3-6 μ m，孔径分布主要在10 nm左右的mn基氧化物（Mn2O3， MnCo2O4和CoMn2O4）微球的多孔纳米片。利用多孔纳米片结构的微球，在100次充放电循环后，锰基氧化物微球Mn2O3的比容量达到650 mAh/g。三种锰基氧化物的代表性比容量随Co元素含量的增加呈上升趋势，充放电平台率随Mn元素含量的增加呈下降趋势，更适合作为高输出满电池的负极材料。然后，不同成分的氧化物可以应用于不同的条件，如需要高比容量或高输出锂离子电池。因此，微球易于制备和优异的电化学性能证明了锰基氧化物在锂离子电池中的巨大潜力。(C) 2017 Elsevier B.V.版权所有
Porous nanosheets assembled Mn-based oxides (Mn2O3, MnCo2O4 and CoMn2O4) microspheres of diameters about 3-6 mu m and pore size distribution mainly around 10 nm have been synthesized by the same facile solvothermal route without any surfactant followed by a calcination process. In virtue of the porous nanosheets constructed microspheres, the Mn-based oxides microspheres Mn2O3 present specific capacities of 650 mAh/g after 100 charge and discharge cycles. Additionally among the three Mn-based oxides the representative specific capacities present an increasing trend as with the increasing percentage of Co element, the plateau of charge and discharge present a lower trend as with the increasing percentage of Mn element which is more suitable as anode materials in high output full batteries. Then the oxides with different components could be applied in different conditions such as the need for high specific capacity or high output lithium-ion batteries. Consequently the easy fabrication of microspheres and excellent electrochemical performances demonstrate Mn-based oxides' great potential in lithium-ion batteries. (C) 2017 Elsevier B.V. All rights reserved.