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两种不同的化成制度对锂离子电池性能的影响

廖文明 戴永年 姚耀春 孙学磊

中山大学学报(自然科学版)2009,Vol.48Issue(z2):62-66,5.
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

廖文明 1戴永年 1姚耀春 1孙学磊1

作者信息

  • 1. 昆明理工大学真空冶金国家工程实验室,云南,昆明,650093
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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)

中山大学学报(自然科学版)

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