文献类型：期刊文献

英文题名：Novel nanostructured LiMn2O4 microspheres for high power Li-ion batteries

作者：Zhang, Huang[1];Xu, Yunlong[1];Liu, Dong[2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Minist Educ,Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Univ Texas Arlington, Dept Mat Sci & Engn, Arlington, TX 76019 USA

年份：2015

卷号：5

期号：15

起止页码：11091

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20150500482600);WOS:【SCI-EXPANDED(收录号:WOS:000348986900029)】；

基金：The work is supported by the Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Lithium compounds - Ball milling - Lithium-ion batteries - Manganese compounds

摘要：A novel type of nanostructured LiMn2O4 microsphere was successfully synthesized by wet ball milling combined with high-temperature calcinations. The prepared materials were characterized by XRD, SEM, BET surface area measurement, electrochemical galvanostatic cycling tests, EIS, and XRF. The results show that the well-shaped microspheres with a diameter of approximately 0.5-2 mu m are composed of reorganized nanoparticles. The LiMn2O4 microspheres have a high tap density of 2.8 g cm(-3), and as electrodes, these micro/ nanostructured spheres show excellent rate capability and cycle stability, resulting in a high volumetric energy density, even at elevated temperature. These materials are promising for power battery applications.