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 tion 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.
Highlights
In the past few years, researchers have been deeply concerned about global issues regarding sustainable energy sources that are safe for the environment
Many investigational studies have confirmed the importance of adding low molecular weight plasticizers into the PEs for enhancing ion migration [27]
The Fourier atransform infrared (FTIR) results and their significant deconvolution were used to dedetect the interaction that occurs among polymer electrolyte components and determine tect the interaction that occurs among polymer electrolyte components and determine the the transport parameters
Summary
In the past few years, researchers have been deeply concerned about global issues regarding sustainable energy sources that are safe for the environment. A liquid electrolyte (LE) provides high ionic conductivity due to its low bulk resistance but has drawbacks like leakage of harmful gases or corrosive liquid [1]. Researchers are attracted to study solid polymer electrolytes (SPEs). They are easier to handle due to their free-standing properties compared to LEs. Rapid technology development is needed in this era due to massive commercial demands on various electrical devices with different shapes and sizes. Rapid technology development is needed in this era due to massive commercial demands on various electrical devices with different shapes and sizes These demands can be solved with the implementation of SPEs [2]. Several advantages of SPEs include them being lightweight, of excellent thermal stability, high flexibility, cheap, and easy handling [3,4]
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