| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
(전기화학) 에너지 변환/저장 장치를 위한 전기화학 II |
| 제목 |
Feasibility of Lithium Storage on Inactive Transition Metal by Nano-size Effects |
| 초록 |
Although the transition metal oxides have been attracted to the alternative anode materials, their reaction mechanism in the Li-ion batteries is ambiguous. Nearly all transition metal oxides as anode materials have been found to accompany specific excess Li storage over theoretical capacity calculated on the intercalation, conversion, and alloying reaction during electrochemical cycling. In order to understand the origin of the additional capacity, it was focused on either a by-product of the conversion and alloying reaction or a particle surface, not core. The nano-sized materials could show the different electrochemical behavior contrary to what the bulk could offer. Particularly, the formation of nano-sized metal below 5nm by the conversion reaction would give a chance to change the characteristic of the metal particles. When reducing the particle size below 5nm, unexpected structural change occurs on the particle core. More detailed discussion will be presented on meeting. |
| 저자 |
김윤옥1, 이현준2, 최우성1, 윤원섭1, 조용훈3
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| 소속 |
1성균관대, 2서울대, 3강원대 |
| 키워드 |
Nano-size Effect; abnormal capacity; Li-ion battery
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| E-Mail |
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