| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Asymmetric Na-ion Storage Devices Based on Nanostructured Pyropolymers |
| 초록 |
Na-ion-based energy storage devices (Na-ESDs) have attracted much attention owing to the ubiquity and plenty of Na-ions as well as a similar chemistry to Li-ion batteries. Because graphite host structure has unfavorable Na-ion capacity, nanostructured carbon-based materials (NCMs), which are pyropolymers made of celluloses by carbonization, are alternatively developed as active electrode materials. It is known that according to local carbon microstructure and surface properties of NCMs, Na-ions can be stored in both anodic and cathodic range. Pseudographitic layers and topological carbon defects can be redox hosts in the anodic potential, while extrinsic defects such as oxygen and nitrogen can store Na-ions in a cathodic potential. In this study, we successfully designed two types of NCMs using different kinds of cellulose and their devices with high electrochemical performances were achieved. |
| 저자 |
김나래1, 이민의1, 윤현지1, 최준호1, 안홍주1, 윤영수2, 진형준1
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| 소속 |
1인하대, 2강원대 |
| 키워드 |
pyropolymer; cellulose; carbon; carbonization; Na-ion; energy
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| E-Mail |
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