| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-고분자 |
| 제목 |
Laser-induced Fluorinated Polyimide Microsupercapacitor Electrodes with Large Specific Surface Area obtained from Microporous Structures |
| 초록 |
Laser-induced graphene (LIG) is generally difficult to improve the electrochemical performance of microsupercapacitors (MSCs) due to the low specific surface area obtained from their mesoporous structure. In this study, fluorinated polyimides (fPI) with 3D nanostructure through a laser photothermal method are reported. Fluorine-containing gaseous products are released from fPI during laser-induced graphitization, resulting in a highly microporous structure. Therefore, the patterned LIG (LIG-fPI) shows a large specific surface area with its electrochemical performance. Specifically, the LIG-fPI electrode exhibits an exceptional areal capacitance of 110 mF cm–2 under an H2SO4 aqueous electrolyte, which is 27 times higher than that of a LIG based on commercial polyimides. Furthermore, thanks to an organic gel polymer electrolyte, LIG-fPI-MSCs with the mechanical stability and flexibility show high energy and power densities of 0.58 mW cm–2 and 0.01 mWh cm–2, respectively. |
| 저자 |
구민국1, 김민수2, 이동욱1, 김병각2, 김성곤1
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| 소속 |
1전북대, 2한국화학(연) |
| 키워드 |
laser-induced graphene; hierarchical porous structure; micropore; micro-supercapacitor; flexibility; fluorinated polyimides
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| E-Mail |
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