| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-에너지저장.변환 |
| 제목 |
Highly ionic conductive crosslinked PEO-PPO-PEO triblock copolymer electrolyte for all-solid-state supercapacitor applications |
| 초록 |
Novel ionic liquid (IL)-doped crosslinked PEO-PPO-PEO triblock copolymer electrolytes (cPL-TPEs) were prepared from triethoxysilane-endcapped PEO-PPO-PEO precursors (PL-TPE). PL-TPEs were synthesized by reacting terminal hydroxyl groups of the corresponding Pluronic® copolymers with (3-isocyanatopropyl)triethoxysilane. The conductivity of a cPL-TPE with 150 wt% IL reached 2.5×10-3 S/cm at room temperature and 1.6×10-2 S/cm at 80 °C. These values were higher compared to that of the PEO electrolyte with the same IL content thanks to their entirely amorphous structure that plays a critical role in facilitating ion transport. In addition, all-solid-state supercapacitors based on cPL-TPE electrolytes were fabricated using graphene electrodes made by kneading method. These supercapacitors showed a stable electrochemical response up to 3.2 V operating voltage and were capable of yielding a high specific capacitance of 115.8 F/g at a current density of 10 mA/g. |
| 저자 |
한재희1, 홍영택1, 서동학2, 김태호1
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| 소속 |
1한국화학(연), 2한양대 |
| 키워드 |
supercapacitor; polymer electrolyte
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| E-Mail |
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