| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 |
18권 2호 |
| 발표분야 |
(전기화학)에너지변환/저장을 위한 전기화학적 원리 |
| 제목 |
Electrochemical surface passivation of LiCoO2 for advanced safe lithium-ion batteries by using allylic ionic liquid electrolytes |
| 초록 |
For advanced safe LIBs, room temperature ionic liquids (RTILs) have attracted great attention due to unique characteristics such as non-volatility, great thermal stability and high conductivity. We demonstrate that thin and homogeneous surface film, which is electrochemically deposited on cathode, LiCoO2, by using RTIL-electrolyte with adopting the unsaturated part on the cation of 1-allyl-1-methylpiperidinium bis(trifluoromethanesulfonyl)imide (AMPip-TFSI), can advoid undesired side reactions. The controlled passivation film, comprising with high amount of organic species from the cation of RTILs, covered LiCoO2 homogeneously with the layer ＞ 25 nm and worked as a crucial role to suppress unfavorable thermal reaction as well as electrochemical side reactions. |
| 저자 |
문준영1, 임태은2, 박장훈3, 류지헌4, 이상영3, 김영규5, 오승모5
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| 소속 |
1인천대, 2KETI, 3UNIST, 4한국산업기술대, 5서울대 |
| 키워드 |
lithium ion battery; ionic liquid; electrolyte
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| E-Mail |
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