Synthesis and characterization of highly conducting gel electrolytes

✍ Scribed by F. Groce; F. Gerace; G. Dautzemberg; S. Passerini; G.B. Appetecchi; B. Scrosati

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 753 KB
• Volume: 39
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(94)e0167-x

✦ Synopsis

The electrochemical properties of gel electrolytes formed by the immobilization in a poly(acrylonitrile) matrix of solutions of common lithium salts (eg LiClO,, LiAsF, and LiN(CF,SO,),) in organic solvents (eg the propylene carbonate-ethylene carbonate mixture, y-butyrolactone or the ybutyrolactone-ethylene carbonate mixture) have been determined. The results indicate that in accordance with previous literature data, these electrolytes have a high ionic conductivity, a wide electrochemical stability window and a high lithium transference number. However, their application in long-life, rechargeable lithium polymer batteries may be hindered by the instability of the negative electrode interface.