Back to Search
Start Over
Preparation of alkaline solid polymer electrolyte based on PVA–TiO2–KOH–H2O and its performance in Zn–Ni battery
- Source :
- Journal of Physics and Chemistry of Solids. 69:2691-2695
- Publication Year :
- 2008
- Publisher :
- Elsevier BV, 2008.
-
Abstract
- A novel composite alkaline polymer electrolyte based on poly(vinyl alcohol) (PVA) polymer matrix, titanium dioxide (TiO2) ceramic fillers, KOH, and H2O was prepared by a solution casting method. The properties of PVA–TiO2–KOH alkaline polymer electrolyte films were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and AC impedance techniques. DSC and XRD results showed that the domain of amorphous region in the PVA polymer matrix augmented when TiO2 filler was added. The SEM result showed that TiO2 particles dispersed into the PVA matrix although some TiO2 aggregates of several micrometers were formed. The alkaline polymer electrolyte showed excellent electrochemical properties. The room temperature (20 °C) ionic conductivity values of typical samples were between 0.102 and 0.171 S cm−1. The Zn–Ni secondary battery with the alkaline polymer electrolyte PVA–TiO2–KOH had excellent electrochemical property at the low charge–discharge rate.
- Subjects :
- chemistry.chemical_classification
Vinyl alcohol
Materials science
integumentary system
Scanning electron microscope
Inorganic chemistry
General Chemistry
Polymer
Electrolyte
Condensed Matter Physics
Electrochemistry
chemistry.chemical_compound
Differential scanning calorimetry
chemistry
Chemical engineering
visual_art
Titanium dioxide
visual_art.visual_art_medium
General Materials Science
Ceramic
Subjects
Details
- ISSN :
- 00223697
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- Journal of Physics and Chemistry of Solids
- Accession number :
- edsair.doi...........e6de979dbb4a6a901f35324776f23d99
- Full Text :
- https://doi.org/10.1016/j.jpcs.2008.06.132