Sudhakar, Y N and Bhat, Krishna D and Selvakumar, M (2016) Ionic Conductivity and Dielectric Studies of Acid Doped Cellulose Acetate Propionate Solid Electrolyte for Supercapacitor. Polymer Engineering and Science, 56 (2). pp. 196-203. ISSN 1548-2634

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Abstract

Phosphoric acid doped cellulose acetate propionate (CAP) consisting of poly(ethylene glycol) (PEG) as plasticizer was investigated. Ionic conductivities and dielectric studies were carried at different temperature with varying concentration of H3PO4 using AC impedance method. The highest conductivity was 8.1 3 1024 S cm21 at 343 K and a long tail was featured in dielectric studies indicating good capacitance nature of the electrolyte. Interactions between added constituents were observed in FTIR and differential scanning calorimetry studies. Thin and compact fabricated supercapacitor demonstrated specific capacitance of 64 F g21 using cyclic voltammetry. Furthermore, the supercapacitor properties like AC impedance and charge-discharge were studied. Stability was up to 96% at 1000th cycle. POLYM. ENG. SCI., 56:196–203, 2016. VC 2015 Society of Plastics Engineers

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