|
11.
Ion Transport and Polymeric Battery Studies on Hot-pressed Solid
Polymer Electrolytes: (1-x) PEO: x KHCO3
Angesh Chandra1,*, Archana Chandra 1 & Kiran
Thakur 2
1 Department of Applied Physics, Shri Shankaracharya
Institute of Prof. Manag. & Tech., Raipur – 492015, C.G., India
2 Department of Applied Chemistry, Raipur Institute of Technology,
Raipur – 490101, C.G., India
Corresponding author e-mail:
chandrassi@gmail.com
Abstract:
Preparation and characterization of an ion conducting solid
polymer electrolyte (SPE) membranes: (1-x) PEO: x KHCO3,
where x = 0 < x < 50 wt. (%), are reported. SPE membranes were
casted using a recently developed hot-press technique. The
composition: 70PEO : 30KHCO3 with conductivity (σ) ~
8.5 × 10-7 S.cm-1 was identified as
highest conducting composition from the compositional dependent
conductivity study and this has been referred to as the Optimum
Conducting Composition (OCC). An enhancement in the room
temperature conductivity of approximately two orders of
magnitude has been achieved in OCC as compared to pure polymer
host PEO. Material characterizations were done with the help of
XRD, Scanning Electron Micrograph (SEM) and TGA analysis. The
basic ionic transport parameters viz. ionic conductivity (σ),
ionic mobility (μ), mobile ion concentration (n) and ionic
transference number (tion) have been characterized
using different experimental techniques. A solid-state polymeric
batteries were fabricate using SPE OCC as an electrolyte and the
cell-potential discharge characteristics were also studied at
different load conditions at room temperature.
Keywords: Solid polymer electrolyte, ionic conductivity,
hot-press method, XRD, SEM, TGA, solid-state polymeric battery.
<<< |
