Lithium/Polymer Battery Electrolytes: The Poly(eth ylene oxide)/Lithium Perchlorate System

摘要

“Plastic” batteries incorporating novel lithium/polymer electrolytes are already finding application as durable, high energy density, lightweight energy storage devices in telecommunications applications and in off-peak power storage. Moreover, prototype batteries are being tested as light weight power supplies in electric and hybrid electric/internal combustion engine automobiles1. Despite these applications and the enormous potential for plastic battery use in future applications, the crucial process of lithium ion transport in the electrolyte polymer medium remains poorly understood. To improve our understanding of this important process, an investigation of the structure and dynamic properties of the “canonical” electrolyte, a solution consisting of disassociated lithium salt in a poly(ethylene oxide) mel, was initiated. The approach taken here is to present the results of several years work in a highly condensed format bearing in mind that members of ACS PMSE may be interested in but as yet unaware of this work (see “REFERENCES”, 2-6).