Back to Search
Start Over
Novel preparation of nanocomposite polymer electrolyte and its application to lithium polymer batteries
- Source :
- Journal of Power Sources. 138:245-252
- Publication Year :
- 2004
- Publisher :
- Elsevier BV, 2004.
-
Abstract
- Gel nanocomposite polymer electrolyte (NCPE) was prepared by UV polymerization and thermal polymerization, respectively in the presence of liquid electrolyte with nanosize SiO 2 -contained poly(ethylene glycol) diacrylate (PEGDA) as the monomer. Nanosize SiO 2 -contained PEGDA was synthesized using aqueous colloidal silica as one of starting materials and its viscosity was very low. The partial silanol surface groups of SiO 2 were modified to acrylic group by employing of methacryloxypropyl-trimethoxysilane (MAPTMS), which made the dispersion of nanosize SiO 2 in PEGDA uniform and stable. Compared with the gel polymer electrolyte (GPE) based on PEGDA without nanosize SiO 2 , the ionic conductivity of the gel NCPE was higher and the electrochemical stability and interfacial stability were better, whether it was prepared by UV polymerization or thermal polymerization. It showed oxidation stability up to 5.0 V versus Li/Li + and lithium deposition/dissolution on the stainless steel electrode highly reversible. The applicability of the gel NCPE to lithium polymer batteries was demonstrated by graphite/SPE/LiCoO 2 cell, which was prepared by in situ thermal polymerization. It showed that the discharge capacity was stable with charge–discharge cycling.
- Subjects :
- chemistry.chemical_classification
Materials science
Nanocomposite
Renewable Energy, Sustainability and the Environment
Colloidal silica
Energy Engineering and Power Technology
chemistry.chemical_element
Polymer
Electrolyte
Lithium battery
chemistry.chemical_compound
Monomer
chemistry
Polymerization
Chemical engineering
Polymer chemistry
Lithium
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Subjects
Details
- ISSN :
- 03787753
- Volume :
- 138
- Database :
- OpenAIRE
- Journal :
- Journal of Power Sources
- Accession number :
- edsair.doi...........aebd1a91007e7c9d280eeb69781e344c