Novel Development of Ionic Liquid-Based Copolymer Solid Electrolyte for High-Performance all Solid-State Supercapacitor
| dc.contributor.advisor | Girum Ayalneh | |
| dc.contributor.author | Demelie Yimer | |
| dc.date.accessioned | 2025-08-31T21:13:14Z | |
| dc.date.available | 2025-08-31T21:13:14Z | |
| dc.date.issued | 2024-03 | |
| dc.description.abstract | In the early 1970s, solid-state materials such as ceramic, glass, crystal, and polymer electrolytes were developed for the purpose of energy storage materials. The energy storage technologies are cutting-edge technologies that are essential for renewable energy, energy management, conservation, and storage, which indirectly contribute pollution control, and greenhouse gas mitigation. Development of solid-state polymer electrolytes (SPEs) is one of the strategies for the development of functional solid-state electrochemical energy storage devices. In this research, polymeric ionic liquid based co-polymer solid electrolytes were synthesized with different ratio of polymeric ionic liquids and copolymers. A simple integration approach enables the quadratic copolymer poly (acrylamide-co-diallyldimethylammonium chloride (PAADDAC) to be well incorporated into chitosan (CS) and polymeric ionic liquid networks during synthesis. Physicochemical characterization techniques such as Fourier-transform infrared (FTIR) and Scanning electron microscope (SEM) were carried out for the spectra analysis of Ionic liquid based Chitosan/Poly (acrylamide-co-diallyldimethylammonium chloride) polymer TFSI (PIL &IL-b-CPE) are based on various chemical crossings. And electrochemical characterization methods such as cyclic voltammetry (CV) and charge discharge of the synthesis membrane were tested. The main emphasis was on materials like conducting copolymer solid electrolytes. Parameters like as energy, capacity, power, cycle performance, and equivalent series resistance are used to analyze the performance of solid copolymer electrolytes. On this solid state SC with ionic liquid impregnation ratio of 25% exhibited the best performance with specific capacitance (Cam) and energy density (Emax) of 3.74 F g-1 and 2.07 Wh kg-1, respectively. These records of worth are only slightly lower than those obtained for convectional SCs using pure TFSI, and much higher as compared with other solid SCs based on conventional polymer electrolytes. This is mainly due to the high electrochemical stability of this PIL &IL-b-CPE that allows these solid SCs to operate at maximum voltages as high as 2 V for the first time. | |
| dc.identifier.uri | https://etd.aau.edu.et/handle/123456789/7231 | |
| dc.language.iso | en_US | |
| dc.publisher | Addis Ababa University | |
| dc.subject | Supercapacitor | |
| dc.subject | Solid Polymer Electrolytes | |
| dc.subject | Co-Polymer Solid Electrolytes | |
| dc.subject | Electrodes | |
| dc.title | Novel Development of Ionic Liquid-Based Copolymer Solid Electrolyte for High-Performance all Solid-State Supercapacitor | |
| dc.type | Thesis |