Solid state polymeric electrolytes based on poly(epichlorohydrin)
β Scribed by G.Goulart Silva; N.H.T. Lemes; C.N.Polo da Fonseca; M.-A. De Paoli
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 929 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0167-2738
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β¦ Synopsis
Elastomers constituted of the homopolymer of epichlorohydrin, its copolymer with ethylene oxide and its terpolymer with ethylene oxide and allyl-glycidyl-ether were studied as polymeric electrolytes in polymer/LiClO, systems. The variation of the ionic conductivity with salt concentration indicated that the copolymer and the terpolymer show the highest conductivities, ca. IO-' S cm-' at 30Β°C. Also, the fitting of the ionic conductivity versus inverse of temperature curves with the VTF equation indicated a conductivity mechanism similar to poly(ethylene oxide) for the copolymer and the terpolymer. The potential stability window determined by cyclic voltammetry is 3.5 V and the polymers are stable to heating up to 250Β°C. These results confirm the feasibility of using the copolymer and the terpolymer systems with LiClO, as polymeric solid state electrolytes.
π SIMILAR VOLUMES
In the present paper, the ionic conducting properties of sulfonated poly(phenylene oxide) (PPO) and its alkali-metal salts were investigated in detail. It was found that the material had moderate conductivity, which could reach as high as 10 06 S/cm at room temperature. Its conductivity dependence o
An amide 6-b-ethylene oxide copolymer (PebaxB) was investigated as an ionic conducting matrix. Transparent and flexible films containing LiClO, were prepared with ionic conductivities in the range of 10m6 S cm-' at room temperature. The conductivity values gradually increased when the films were hea