School of Materials Science and Engineering, Beihang University , 37 Xueyuan Road, Beijing 100191, China.
ACS Appl Mater Interfaces. 2014 Aug 13;6(15):12713-8. doi: 10.1021/am5027055. Epub 2014 Jul 18.
Interdispersed MnO nanoparticles that are anchored and encapsulated in a three-dimensional (3D) porous carbon framework (MnO@CF) have been constructed, which display nanosphere architecture with rich porosity, well-defined carbon framework configuration, and excellent structure stability. When evaluated as an anode material, the MnO@CF exhibits relatively high specific capacity of 939 mA h g(-1) at current rate of 0.2 A g(-1) over 200 cycles and excellent rate capability of 560.2 mA h g(-1) at 4 A g(-1). By virtue of its mechanical stability and desirable ionic/electronic conductivity, the specific design can be a promising approach to fabricate high-performance lithium-ion batteries.
已构建出锚定和封装在三维(3D)多孔碳框架中的分散 MnO 纳米颗粒(MnO@CF),其具有丰富孔隙率的纳米球结构、明确的碳框架结构和优异的结构稳定性。作为阳极材料进行评估时,MnO@CF 在 0.2 A g(-1) 的电流速率下经过 200 个循环后具有相对较高的比容量 939 mA h g(-1),在 4 A g(-1)时具有出色的倍率性能 560.2 mA h g(-1)。由于其机械稳定性和理想的离子/电子导电性,这种特殊设计可能是制造高性能锂离子电池的一种很有前途的方法。