Novel Polymer Electrolytes for Rechargeable Lithium-Ion Polymer Batteries

1 January 1999

journal article
Published by The Electrochemical Society in Electrochemical and Solid-State Letters

Vol. 2 (6) , 256-258
https://doi.org/10.1149/1.1390803

Abstract

Lithium‐ion polymer cells employing a carbon anode, a gel polymer electrolyte (GPE), and a lithium cobalt oxide cathode were assembled, and their charge‐discharge cycling characteristics were investigated. Gel polymer electrolytes were prepared by encapsulating an organic electrolyte solution in an acrylonitrile‐methyl methacrylate‐styrene terpolymer. A small amount of γ‐butyrolactone was added to a gel polymer electrolyte containing an ‐ethylene carbonate‐dimethyl carbonate electrolyte solution in order to improve the GPE ionic conductivity. Results showed a significant enhancement in rate capability, whereas cycling efficiency and cyclability were little changed. ©1999 The Electrochemical Society

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