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Study on the cycling performance of Li4Ti5O12/LiCoO2 cells assembled with ionic liquid electrolytes containing an additive
- Kim, Jin Hee;
- Bae, Seo-youn;
- Min, Jeong-Hye;
- Song, Seung-Wan;
- Kim, Dong-Won
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WEB OF SCIENCE
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34초록
The cycling behavior of Li4Ti5O12/LiCoO2 cells in the ionic liquid electrolytes based on 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl) imide (BMP-TESI) with different additives, such as vinylene carbonate (VC), 1,3-propane sultone (PS) and their mixture is investigated. The cell assembled with BMP-TESI containing 10 wt% VC/PS (1:1 by weight) exhibits reversible cycling behavior with good capacity retention. FTIR studies reveal that the electrochemically stable solid electrolyte interphase forms on Li4Ti5O12 electrode in the presence of a mixture of VC and PS during cycling. The additives hardly affect the composition, thickness and stability of the surface film formed on the LiCoO2 cathode.
키워드
Additive; Ionic liquid; Lithium-ion battery; Solid electrolyte interphase; THERMAL-STABILITY; NATURAL GRAPHITE; LITHIUM; ANODE; BATTERIES; SURFACE; SOLVENTS; CATHODES; SULTONE; LIXCOO2
- 제목
- Study on the cycling performance of Li4Ti5O12/LiCoO2 cells assembled with ionic liquid electrolytes containing an additive
- 저자
- Kim, Jin Hee; Bae, Seo-youn; Min, Jeong-Hye; Song, Seung-Wan; Kim, Dong-Won
- 발행일
- 2012-09
- 유형
- Article
- 권
- 78
- 페이지
- 11 ~ 16