Abstract

This research paper as an article investigates electrochemical performance of poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-co-HFP) flexible nanocomposite polymer electrolytes which have been prepared successfully with incorporation of zinc oxide (ZnO) nanofiller. First, nanofillers are incorporated in a polymer matrix to form the flexible nanocomposite PVdF-co-HFP polymer membranes (PI-CMPM), and it is obtained by phase inversion technique. Contact angles of PI-CMPM have achieved a maximum of 136°. After this procedure, it has been activated by using a 1.0 M LiClO4 containing of DMC/EC (1 : 1 v/v ratio) electrolyte solution to get flexible nanocomposite polymer electrolytes (PI-CMPE). The optimized PI-CMPM has increased the electrolyte uptake by 150%. It reaches the maximum ionic conductivity value of 2.47×10−3 S cm−1 at room temperature. Optimized PI-CMPE achieved a maximum transference number of 0.61, which may be further evidence for the ability to fabricate high-performance lithium ion polymer batteries.

Highlights

  • Several research groups are working and putting a lot of effort to fabricate lithium ion batteries

  • Gozdz et al [10,11,12,13] established the process of a porous polymer membrane by the PVdF-coHFP polymer, and the electrolyte has been commercialized in plastic lithium ion batteries (PLiON) by using Telcordia Technologies

  • Liquid electrolytes can be obtained by dissolving the organic plasticizers, such as dimethyl carbonate (DMC), diethyl carbonate (DEC), ethylene carbonate (EC), and propylene carbonate (PC), with lithium electrolyte salts

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Summary

Introduction

Several research groups are working and putting a lot of effort to fabricate lithium ion batteries. Liquid electrolytes can be obtained by dissolving the organic plasticizers, such as dimethyl carbonate (DMC), diethyl carbonate (DEC), ethylene carbonate (EC), and propylene carbonate (PC), with lithium electrolyte salts. These electrolytes show high conductivity in the order of 10-3 S cm-1. For long time usage, the organic liquid electrolyte solvents (DMC/DEC/EC/PC) may escape from the polymer membrane electrolytes, which causes a fall in ionic conductivity, and it is possible to damage electrodes and International Journal of Polymer Science other components. The physical as well as electrochemical properties of PI-CMPE have been successfully investigated

Experimental Details
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