物理化学学报 >> 2006, Vol. 22 >> Issue (07): 826-830.doi: 10.3866/PKU.WHXB20060711

研究论文 上一篇    下一篇

不同热引发剂对凝胶态聚合物电解质性能的影响

唐定国;慈云祥;其鲁   

  1. 北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:2006-01-16 修回日期:2006-03-10 发布日期:2006-06-27
  • 通讯作者: 其鲁 E-mail:qilu@pku.edu.cn

Influence of Thermal Initiators on the Electrochemical Performances of Gel Polymer Electrolytes

TANG Ding-Guo;CI Yun-Xiang;QI Lu   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2006-01-16 Revised:2006-03-10 Published:2006-06-27
  • Contact: QI Lu E-mail:qilu@pku.edu.cn

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摘要： 采用热重/差热分析方法研究了两种热聚合引发剂: AIBN和BPO. 它们通常用于制备锂离子二次电池凝胶态聚合物电解质. 采用不同引发剂制备的凝胶态聚合物电解质具有不同的特性并影响聚合物锂离子二次电池的性能, 例如倍率性能, 高低温性能和循环性能. 为凝胶态聚合物电解质体系选择了一种合适的热引发剂.

关键词: 热引发剂, 聚合, 凝胶态聚合物电解质, 锂离子聚合物电池, 电化学性能

Abstract: Two thermal polymerization initiators, 2,2′-azobisisobutyronitrile(AIBN) and benzoyl peroxide(BPO), commonly used to prepare gel polymer electrolytes (GPEs) for lithium-ion polymer batteries (LiPBs), were studied by thermogravimetry/differential thermal analysis (TG/DTA). The GPEs prepared with thermal initiators showed different electrochemical performances and had great influence on the performance of LiPBs, such as rate capability, temperature reliability, and cycling performance. An appropriate thermal initiator is selected for the GPE system.

Key words: Thermal initiator, Polymerization, Gel polymer electrolyte, Lithium-ion polymer batteries, Electrochemical performance