PEO基纳米复合聚合物电解质电化学性质的研究

电化学（中英文） ›› 2004, Vol. 10 ›› Issue (2): 215-221.

PEO基纳米复合聚合物电解质电化学性质的研究

杜洪彦,程琥,杨勇

厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室福建厦门361005 ,福建厦门361005 ,福建厦门361005

收稿日期:2004-05-28 修回日期:2004-05-28 出版日期:2004-05-28 发布日期:2004-05-28

Study on Electrochemical Properties of PEO-based Composite Polymer Electrolytes

DU Hong-yan ,CHENG Hu ,YANG Yong~* Chemistry, Xiamen University, Xiamen 361005, China)

Received:2004-05-28 Revised:2004-05-28 Published:2004-05-28 Online:2004-05-28

摘要/Abstract

摘要： 　以PEO8 LiClO4作母体,纳米SiO2为填料,制成PEO8 LiClO4 SiO2(x%)系列复合聚合物电解质,测定这该电解质的电导率、锂离子迁移数和电化学稳定窗口,并对其晶态结构作差热分析表征.结果表明,纳米SiO2的引入,显著提高了电解质的电导率,在22℃时达到4.3×10-5S·cm-1.此外,还探讨了填料对复合聚合物电解质电导率提高的影响机理.

关键词: PEO, 复合聚合物电解质, 可充锂电池, 电化学性质

Abstract: Composite polymer electrolytes were prepared by introducing nano-scale SiO_(2)into PEO_(8)-LiClO_(4)matrix. The ionic conductivity, lithium transference number and the electrochemical stability windows were measured. The phase component was evaluated with DSC techniques. The results showed that the introduction of nano fillers enhanced the ionic conductivity. It reached 4.3×10~(-5 ) S·cm~(-1)at 22 ℃. The conductivity enhancement of the composite polymer electrolytes is analyzed and proposed.

Key words: PEO, Composite polymer electrolytes, Rechargeable lithium batteries, Electrochemical properties

中图分类号:

O631

杜洪彦,程琥,杨勇. PEO基纳米复合聚合物电解质电化学性质的研究[J]. 电化学（中英文）, 2004, 10(2): 215-221.

DU Hong-yan ,CHENG Hu ,YANG Yong~* Chemistry, Xiamen University, Xiamen 361005, China). Study on Electrochemical Properties of PEO-based Composite Polymer Electrolytes[J]. Journal of Electrochemistry, 2004, 10(2): 215-221.

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链接本文: https://electrochem.xmu.edu.cn/CN/

https://electrochem.xmu.edu.cn/CN/Y2004/V10/I2/215

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