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Nanoparticle-dispersed PEO polymer electrolytes for Li batteries
- Source :
-
Journal of Power Sources . Jun2003, Vol. 119-121, p422. 5p. - Publication Year :
- 2003
-
Abstract
- Nanoparticle-dispersed polymer electrolytes have been prepared by stirring or high-energy ball milling of polyethylene oxide (PEO), lithium salt (LiCF3SO3, LiClO4 and LiPF6), and nanometer-size ceramic powder (TiO2, SiO2 and Al2O3). The smaller the size of ceramic particles, the better they influence the crystallization kinetics of the PEO polymer chains. High-energy ball milling lowers the glass transition temperature of the composite polymers, and thus increases the ionic conductivity greater than the order of the magnitude compared with the un-milled samples. The highest ionic conductivity was reported when using LiPF6 as added lithium salt and Al2O3 as dispersed particle. Cyclic voltametric measurements showed that the PEO-system is electrochemically stable in the range of 2–5 V. [Copyright &y& Elsevier]
- Subjects :
- *ELECTROLYTES
*CERAMIC powders
*LITHIUM cells
Subjects
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 119-121
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 9991126
- Full Text :
- https://doi.org/10.1016/S0378-7753(03)00264-7