Conductivity study of polyethylene oxide (PEO) complexed with sodium bicarbonate

Ion conducting thin film polymer electrolytes based on polyethylene oxide (PEO) complexed with NaHCO3 salt has been prepared using solution-cast technique. The complexation of NaHCO3 salt with PEO is confirmed by XRD and IR studies. DC conductivity in the temperature range 303–368 K has been evaluat...

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Bibliographic Details
Published in:Journal of materials science 2007-07, Vol.42 (14), p.5752-5755
Main Authors: SIVA KUMAR, J, VIJAYA KUMAR, K, SUBRAHMANYAM, A. R, JAIPAL REDDY, M
Format: Article
Language:English
Subjects:
Applied sciences
Circuits
Complexation
Conducting polymers
Conductivity
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrical, magnetic and optical properties
Electrochemical cells
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrolytes
Exact sciences and technology
Materials science
Open circuit voltage
Organic polymers
Physicochemistry of polymers
Polyethylene
Polyethylene oxides
Polyethylenes
Polymer films
Properties and characterization
Short circuit currents
Sodium bicarbonate
Thin films
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Summary:Ion conducting thin film polymer electrolytes based on polyethylene oxide (PEO) complexed with NaHCO3 salt has been prepared using solution-cast technique. The complexation of NaHCO3 salt with PEO is confirmed by XRD and IR studies. DC conductivity in the temperature range 303–368 K has been evaluated. The conductivity is found to increase in the PEO complex with the NaHCO3 salt and also with an increase in temperature. Using this polymer electrolyte, an electrochemical cell with the configuration Na/(PEO + NaHCO3)/(I2 + C + electrolyte) has been fabricated and its discharge characteristics studied. Open Circuit Voltage (OCV) and Short Circuit Current (SCC) are found to be 2.69 V and 1.28 mA, respectively. Other parameters associated with the cell are evaluated and presented in this paper.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-006-0743-y