A Polymer Blend Electrolyte Based on CS with Enhanced Ion Transport and Electrochemical Properties for Electrical Double Layer Capacitor Applications

Shujahadeen B Aziz; Elham M A Dannoun; Muhamad H Hamsan; Hewa O Ghareeb; Muaffaq M Nofal; Wrya O Karim; Ahmad S F M Asnawi; Jihad M Hadi; Mohd Fakhrul Zamani Abdul Kadir

doi:10.3390/polym13060930

A Polymer Blend Electrolyte Based on CS with Enhanced Ion Transport and Electrochemical Properties for Electrical Double Layer Capacitor Applications

Polymers (Basel). 2021 Mar 17;13(6):930. doi: 10.3390/polym13060930.

Authors

Shujahadeen B Aziz^{1

2}, Elham M A Dannoun³, Muhamad H Hamsan⁴, Hewa O Ghareeb⁵, Muaffaq M Nofal⁶, Wrya O Karim⁵, Ahmad S F M Asnawi⁷, Jihad M Hadi⁸, Mohd Fakhrul Zamani Abdul Kadir⁴

Affiliations

¹ Hameed Majid Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq.
² Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani 46001, Iraq.
³ General Science Department, Woman Campus, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia.
⁴ Centre for Foundation Studies in Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
⁵ Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq.
⁶ Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia.
⁷ Chemical Engineering Section, Universiti Kuala Lumpur Malaysian Institute of Chemical & Bioengineering Technology (UniKL MICET), Alor Gajah, Malacca 78000, Malaysia.
⁸ Department of Medical Laboratory of Science, College of Health Sciences, University of Human Development, Sulaimani 46001, Iraq.

Abstract

The fabrication of energy storage EDLC in this work is achieved with the implementation of a conducting chitosan-methylcellulose-NH₄NO₃-glycerol polymer electrolyte system. The simple solution cast method has been used to prepare the electrolyte. The impedance of the samples was fitted with equivalent circuits to design the circuit diagram. The parameters associated with ion transport are well studied at various plasticizer concentrations. The FTIR investigation has been done on the films to detect the interaction that occurs among plasticizer and polymer electrolyte. To get more insights into ion transport parameters, the FTIR was deconvoluted. The transport properties achieved from both impedance and FTIR are discussed in detail. It was discovered that the transport parameter findings are in good agreement with both impedance and FTIR studies. A sample with high transport properties was characterized for ion dominancy and stability through the TNM and LSV investigations. The dominancy of ions in the electrolyte verified as the t_ion of the electrolyte is established to be 0.933 whereas it is potentially stable up to 1.87 V. The rechargeability of the EDLC is steady up to 500 cycles. The internal resistance, energy density, and power density of the EDLC at the 1st cycle are 53 ohms, 6.97 Wh/kg, and 1941 W/kg, respectively.

Keywords: EDLC device; EEC modeling; FTIR deconvolution; TNM and LSV study; ion transport; plasticizer; polymer blend.