电源技术2011，Vol.35Issue(10)：1193-1197,5.
锂离子电池正极材料LiMn2O4高温性能的应用研究
Application study on high temperature performance of LiMn2O4 material
冼海燕 1张中太 1赵丰刚 1程晓燕1
作者信息
- 1. 东莞新能源科技有限公司,广东东莞523080
- 折叠
摘要
Abstract
In order to improve the unsatisfying high temperature cycling performance, the modified UMn2O4 (LMO) (TA&TB) with particle size adjustment, particle surface modification and Al element functional material doping was introduced in this study. X-ray diffraction, BET analysis, laser particle size distribution analysis, and SEM-EDS analysis were utilized in the characterization of crystal structure, specific surface area, particle size distribution and particle morphology, respectively. The results suggest that surface roughness of a particle and crystal structure stability is improved after modification. It is also learnt from the results that the specific surface area and crystal lattice parameters of the LMO decrease after the modifications referred above. All the results above indicate that the improved performance of high temperature storage and high temperature cycling are brought by modified LMO doping with element of Al. In addition, adding some LiBOB into electrolyte can also improve high temperature performance in LMO system.关键词
锂离子电池/锰酸锂/掺杂/高温循环Key words
lithium ion battery/LiMn2O4/doping treatment/high temperature cycling分类
信息技术与安全科学引用本文复制引用
冼海燕,张中太,赵丰刚,程晓燕..锂离子电池正极材料LiMn2O4高温性能的应用研究[J].电源技术,2011,35(10):1193-1197,5.
