Electric field induced enhancement in the interfacial charge transfer kinetics of a solid polymer electrolyte

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• 作者：K. Ragavendran ; D. Vasudevan ; Bosco Emmanuel
• 关键词：Solid polymer electrolyte ; AC impedance ; Interfacial charge transfer resistance ; KYNAR ; Electrets ; Lithium batteries
• 刊名：Materials Science and Engineering: B
• 出版年：2009
• 出版时间：25 January 2009
• 年：2009
• 卷：156
• 期：1-3
• 页码：94-96
• 全文大小：281 K

文摘

A novel electrostatic method for preparing modified solid polymer electrolytes (SPEs) is reported. Application of an electric field on an evaporating mixture of KYNAR, ethylene carbonate (EC), propylene carbonate (PC) and LiPF₆ dissolved in tetra hydro furan (THF) resulted in a solid polymer electrolyte whose charge transfer resistance was at least an order of magnitude lower than that formed without the application of an electric field. We believe that the observed enhancement is probably due to an electric field induced orientation of dipoles in the polymer chain.