Flexible and low temperature resistant semi-IPN network gel polymer electrolyte membrane and its application in supercapacitor
JOURNAL OF MEMBRANE SCIENCE(2020)
Abstract
To meet the requirement of the flexible supercapacitors, the enhancement of the mechanical properties of the gel polymer electrolyte (GPE) membrane attracts more and more attention. Here a novel PAM-PVP GPE has been developed with a semi-interpenetrating (semi-IPN) structure, which can achieve the superior flexibility and stretchability (elongation at break of 17.42 mm/mm), meantime, the ionic conductivity reaches 0.138 S/cm. The PAM-PVP-H3PO4 GPE supercapacitor shows outstanding cycle stability and can bear complex deformations including bending and stretching. In addition, it possesses the stable electrochemical performances (65% capacitance retention) at -20 degrees C. The supercapacitor is promising for the application in the flexible electronic devices under low temperature condition.
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Key words
Gel polymer electrolyte membrane,Polyacrylamide,Semi-interpenetrating network,Flexible supercapacitor,Low temperature resistance
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