Study of lithiated Nafion ionomer for lithium batteries

被引：81

作者：

Liang, HY

Qiu, XP ^{[1
]}

Zhang, SC

Zhu, WT

Chen, LQ

机构：

[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Beijing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2004年 / 34卷 / 12期

关键词：

ionomer; lithium batteries; Nafion membrane; polymer electrolyte;

D O I：

10.1007/s10800-004-1767-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Lithiated Nafion 112 ionomer was characterized by FT-IR spectroscopy, AC impedance, and cyclic voltammetry. The ionomer swollen with mixed solvents of propylene carbonate ( PC) and ethylene carbonate shows ionic conductivity of 8.18x10(-5) S cm(-1) at 25degreesC and good electrochemical stability to allow operation in Li/ionomer/LiCoO2 cells. The discharge capacity of the first cycle is 126 mAh g(-1). Significant capacity loss occurs during cycling due to the presence of PC. AC impedance shows that the passive layer formed at the Li/ionomer interface dominates the cycling performance of the cell.

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页码：1211 / 1214

页数：4

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