| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
A simple method for Flexible Li-ion battery |
| 초록 |
Anodes using transition metal oxides are in the spotlight as next-generation batteries due to their high theoretical capacity. However, there was a difficulty in practical application due to the volume expansion occurring during the intercalation/desorption process of lithium. In this study, we present a simple method of using MnO2 nanowires as the anode material of lithium batteries. The freestanding electrodes are completed simply by freezing-drying a controlled in-situ hydrogel thin film with no additional process, achieving flexible devices without any additives. The porous electrode structure made through one-pot synthesis suppresses volume expansion and maximizes capacity by making lithium ions more accessible. As a result, the MnO2/graphene electrode showed a capacity of 525 mAh/g at 1.0A/g 400th cycles. This study shows the possibility of one-pot synthesis as a method of making conversion-type electrodes for realizing ultra-light and flexible batteries. |
| 저자 |
김훈성, 정현영, 김선식, Chenrayan Senthil
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| 소속 |
경상국립대 |
| 키워드 |
Li-ion battery; One-pot synthesis; Manganese oxide nanowires; binder-free; Flexible device
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| E-Mail |
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