Electrical double layer capacitor(EDLC) based on poly(ionic liquid)-modified graphene

다국어 초록 (Multilingual Abstract)

This thesis report on a high performance electric double layer capaciotor (EDLC) that consists of poly(ionic liquid)-modified reduced graphene oxide (PIL:RG-O) electrode and ionic liquid (IL) electrolyte. The electrode materials based on PIL:RG-O showed an enhanced compatibility with IL electrolyte, because the surface of PIL:RG-O platelets are coated with PIL that have a chemical structure similar to that of IL electrolyte. Though improved compatibility of electrode and electrolyte, a high specific capacitance of ~187 F/g and operating voltages of ~3.5 V have been achieved with this device. Energy density if the device was also measured as high as 6.5 W∙h/kg and these achievement will be discussed in detail.

목차 (Table of Contents)

• CONTENTS
• ABSTRACT vi
• LIST OF TABLES - vii
• LIST OF FIGURES - viii
• 1. INTRODUCTION 1
• 2. EXPERIMENTAL 4
• 2-1. Material 4
• 2-2. Synthesis of PIL-modified reduced graphene oxide(PIL:RG-O) materials 4
• 2-3. Fabrication of electrical double layer capacitor(EDLC) 6
• 2-4. Characterization 8
• 3. RESULT AND DISCUSSION 10
• 3-1. Characterization of PIL-modified graphene oxide (PIL:RG-O) 10
• 3-2. Evalution of electrical double layer capacitor(EDLC) based on PIL:RG-O electrodes 16
• 4. CONCLUSION 36
• REFERENCE 37