中山大学学报(自然科学版)2009,Vol.48Issue(z2):62-66,5.
两种不同的化成制度对锂离子电池性能的影响
Effects of Two Different Formation Systems on the Performance of Lithium Ion Battery
摘要
Abstract
In this paper, we take LiFePO4 as the positive electrode materials, analyze two different formation systems on the perform-anee of lithium ion battery. Results showed that the specific capacity of lithium ion battery charged by the constant current system was higher than that of stepped system about 3 mAh/g, and whole charging and discharging efficiency is slightly also high. From SEM pat-tern, we didn't discover the difference, but in the XPS measure, the Li+ content of CMS surface obtained from lithium-ion battery after stepped formation system were obviously higher than the constant current, and the F and P peaks were obviously more complex than that of the constant current.关键词
锂离子电池/SEI膜/LiFePO4/XPS/化成Key words
lithium ion battery/SEI film/LiFePO4/XPS/formation分类
化学化工引用本文复制引用
廖文明,戴永年,姚耀春,孙学磊..两种不同的化成制度对锂离子电池性能的影响[J].中山大学学报(自然科学版),2009,48(z2):62-66,5.基金项目
昆明理工大学分析测试基金资助项目(2008-040) (2008-040)