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Choi, Nam-Soon
Energy Materials Lab
Research Interests
  • Rechargeable lithium battery, electrolytes for next generation Mg and Na battery

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A combination of lithium difluorophosphate and vinylene carbonate as reducible additives to improve cycling performance of graphite electrodes at high rates

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Title
A combination of lithium difluorophosphate and vinylene carbonate as reducible additives to improve cycling performance of graphite electrodes at high rates
Author
Kim, Ko-EunJang, Jun YeongPark, InbokWoo, Myung-HeuiJeong, Myung-HwanShin, Woo CheolUe, MakotoChoi, Nam-Soon
Issue Date
2015-12
Publisher
ELSEVIER SCIENCE INC
Citation
ELECTROCHEMISTRY COMMUNICATIONS, v.61, pp.121 - 124
Abstract
Lithium difluorophosphate (LiDFP) as a reducible additive is employed to overcome the unsatisfactory rate capability and cycling instability of highly pressed graphite electrodes with high mass loading (8.1 mg/cm2) with a vinylene carbonate (VC)-derived surface film that hampers the charge transport at the graphite-electrolyte interface at high rates. Our investigation reveals that LiDFP modifies the surface chemistry induced by VC and makes a more ionically conductive surface film on graphite, ensuring good rate capability.
URI
https://scholarworks.unist.ac.kr/handle/201301/17883
URL
http://www.sciencedirect.com/science/article/pii/S1388248115002945
DOI
10.1016/j.elecom.2015.10.013
ISSN
1388-2481
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