Effect of aluminum fluoride coating on the electrochemical and thermal properties of 0.5Li(2)MnO(3)center dot 0.5LiNi(0.5)Co(0.2)Mn(0.3)O(2) composite material
- Authors
- Kim, Jin-Hwa; Park, Min-Sik; Song, Jun-Ho; Byun, Dong-Jin; Kim, Young-Jun; Kim, Jeom-Soo
- Issue Date
- 15-3월-2012
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Aluminum fluoride; Cathode; Lithium ion battery; Oxide
- Citation
- JOURNAL OF ALLOYS AND COMPOUNDS, v.517, pp.20 - 25
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ALLOYS AND COMPOUNDS
- Volume
- 517
- Start Page
- 20
- End Page
- 25
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/105294
- DOI
- 10.1016/j.jallcom.2011.11.117
- ISSN
- 0925-8388
- Abstract
- The positive effect of AlF3 (Al-F) coating on the over-lithiated transition metal oxide with a composition of 0.5Li(2)MnO(3)center dot 0.5LiNi(0.5)Co(0.2)Mn(0.3)O(2) has been investigated to address its potential use in lithium ion batteries. On the basis of various structural and electrochemical characterizations, we elucidate a correlation between surface structure and its electrochemical performance. After the controlled coating with AlF3 (Al-F), we observed notable improvements on cyclic performance and rate capability as well as thermal stability. We found that uniformly introduced AlF3 (Al-F) not only preserves the electrochemical kinetics at the surface of the oxide but also stabilizes its surface as a protective layer against electrolyte oxidation during the high voltage charging. Such improvements will provide a further progress on the development of high-capacity cathode materials fulfilled with the stringent safety requirements. (C) 2011 Elsevier B. V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholar.korea.ac.kr/handle/2021.sw.korea/105294)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.