Studies on the Room Temperature Conductivity of PEO-LiClO4-Al2O3 Composite Polymer Electrolyte

Abstract

Abstract: Acomposite polymer electrolyte of Polyethylene oxide (PEO)-LiClO₄ containing fine Al₂O₃ particles was studied by using differential scanning calorimetry, infrared spectroscopy and electrochemicaLImpedance spectroscopy. Compared with the polymer electrolyte without Al₂O₃ particles, the glass transition temperature and the degree of crystallinity were decreased, and the room temperature conductivity of PEO-LiClO₄ Al₂O₃ composite polymer electrolyte was considerably enhanced. Moreover, the equivalent circuits and the effect of dc potential on impedance spectroscopy were discussed.

Key words: Polyethylene oxide(PEO), Al₂O₃, Composite polymer electrolyte, Room temperature conductivity, Impedance spectroscopy

CLC Number:

O636

TrendMD:

GU Ning-Yu, QIAN Xin-Ming, CHENG Zhi-Liang, JIANG Jun-Guang, YANG Xiu-Rong, DONG Shao-Jun . Studies on the Room Temperature Conductivity of PEO-LiClO₄-Al₂O₃ Composite Polymer Electrolyte[J]. Chem. J. Chinese Universities, 2001, 22(8): 1403.

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Studies on the Room Temperature Conductivity of PEO-LiClO₄-Al₂O₃ Composite Polymer Electrolyte

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