Conductivity studies of LiCF3SO3-doped and DMF-plasticized PVDF-based solid polymer electrolytes
โ Scribed by Mohamed, N. S. ;Arof, A. K.
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 197 KB
- Volume
- 201
- Category
- Article
- ISSN
- 0031-8965
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๐ SIMILAR VOLUMES
Solid-state 13 C NMR spectra and ab initio calculations of 13 C NMR chemical shifts show that poly(ethylene oxide) (PEO) carbons in complex with LiCF 3 SO 3 (both in crystalline and amorphous phase) are more shielded in comparison with neat PEO, due to the coordination to the Li + cation. The result
The free volume behaviour of the polyacrylonitrile/lithium triflate system is investigated over the composition range 0 -75 wt % salt. The addition of salt, up to 45 wt %, to the PAN polymer substantially increases the free volume as measured by the orthopositronium pickoff lifetime, 3 . Beyond this
7Li and 19F NMR relaxation time (T1, T2, T1 rho) measurements have been used to probe the dynamics of LiCF3SO3 dissolved in an amorphous co-polymer poly(ethylene oxide-co-propylene oxide), and in particular the influence of the plasticising agents propylene carbonate and dimethyl formamide. The chan