Structure-conductivity relationsihp in polymer electrolytes formed by network polymers from poly[dimethylsiloxane-g- poly(ethylene oxide)] and litegum perchlorate

✍ Scribed by M. Watanabe; S. Nagano; K. Sanui; N. Ogata

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 393 KB
• Volume: 20
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(87)80131-3

✦ Synopsis

The combination of LiC104 and network polymers from poly[dimethylsiloxane-g-poly(ethylene oxide)] has been applied to polymer electrolytes as an Li+ ion conductor, and the structure/conductivity relationship has been investigated. The ionic conductivity is about 10e6 S cm-' at room temperature. The polymer electrolytes form a micro-heterogeneous structure from the constituent segments, and the incorporated LiClO,, preferentially interacts with the poly(ethylene oxide) segments. The segmental motion of poly-(ethylene oxide) appears to contribute to the ionic migration, while that of poly(dimethylsiloxane) does not. Not all of the incorporated LiC104 functions as carrier ions.