| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.466 |
| 발표분야 |
에너지 환경(Energy and Environment) |
| 제목 |
Highly Reliable Quinone-Based Cathode and Cellulose Nanofiber Separators: Toward Eco-Friendly Organic Lithium Batteries |
| 초록 |
To overcome the disadvantages of the conventional inorganic cathode materials such as low capacities (＜170 mAh g-1) and disposal problem, the organic compounds have recently been considered as promising candidates for the next generation of energy storage systems. Especially, Pillar[5]quinone (P5Q) can not only implement a high theoretical capacity of 446 mAh g−1 but also realize so effective for the use of the active sites that it is able to favorable to Li uptake. We fabricated the cathode using the P5Q enveloped in Multi-walled Carbon Nanotube (MWCNT) with simple vacuum filtering, solving the issues of high solubility in aprotic electrolytes and low conductivity as organic compounds. The vacuum filtration method was able to increase the loading level of cathode and obtain binders/current collector-free films. Furthermore, Cellulose Nanofibers (CNFs) were introduced as an alternative to the convectional polyolefin separator. The CNF separator showed less capacity fading as well as the improvements in the ionic conductivity, electrolyte wettability, and thermal shrinkage. Suggested battery exhibited high specific capacity of 400~420 mAh g-1 and improved cycle performance. |
| 저자 |
유가영, 공용준, 조진일, 표선미, 유지영, 김연상
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| 소속 |
서울대 |
| 키워드 |
에너지 환경 |
| E-Mail |
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| 원문파일 |
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