Characteristics of plasticized lithium ion conducting green polymer blend electrolytes based on cs: Dextran with high energy density and specific capacitance
Document Type
Article
Publication Date
11-1-2021
Abstract
The solution cast process is used to set up chitosan: dextran-based plasticized solid polymer electrolyte with high specific capacitance (228.62 F/g) at the 1st cycle. Fourier-transform infrared spectroscopy (FTIR) pattern revealed the interaction between polymers and electrolyte components. At ambient temperature, the highest conductive plasticized system (CDLG-3) achieves a maximum conductivity of 4.16 x 10(-4) S cm(-1). Using both FTIR and electrical impedance spectroscopy (EIS) methods, the mobility, number density, and diffusion coefficient of ions are measured, and they are found to rise as the amount of glycerol increases. Ions are the primary charge carriers, according to transference number measurement (TNM). According to linear sweep voltammetry (LSV), the CDLG-3 system's electrochemical stability window is 2.2 V. In the preparation of electrical double layer capacitor devices, the CDLG-3 system was used. There are no Faradaic peaks on the cyclic voltammetry (CV) curve, which is virtually rectangular. Beyond the 20th cycle, the power density, energy density, and specific capacitance values from the galvanostatic charge-discharge are practically constant at 480 W/Kg, 8 Wh/Kg, and 60 F g(-1), for 180 cycles.
Keywords
Solid polymer electrolyte, Impedance, Transport properties, FTIR study, Electrochemical double-layer capacitor device
Divisions
foundation
Funders
University of Sulaimani,Komar University of Science and Technology,Taif University, Taif, Saudi Arabia [Grant No: TURSP-2020/162],Prince Sultan University
Publication Title
Polymers
Volume
13
Issue
21
Publisher
MDPI
Publisher Location
ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND