Diphenyloctyl phosphate and tris(2,2,2-trifluoroethyl) phosphite as flame-retardant additives for Li-ion cell electrolytes at elevated temperature
- Authors
- Nam, TH[Nam, Tae-Heum]; Shim, EG[Shim, Eun-Gi]; Kim, JG[Kim, Jung-Gu]; Kim, HS[Kim, Hyun-Soo]; Moon, SI[Moon, Seong-In]
- Issue Date
- 15-May-2008
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Li-ion battery; electrolyte; flame-retardant additives; diphenyloctyl phosphate; tris(2,2,2-trifluoroethyl) phosphite
- Citation
- JOURNAL OF POWER SOURCES, v.180, no.1, pp.561 - 567
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 180
- Number
- 1
- Start Page
- 561
- End Page
- 567
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/81435
- DOI
- 10.1016/j.jpowsour.2008.01.061
- ISSN
- 0378-7753
- Abstract
- The effect of diphenyloctyl phosphate (DPOF) and tris(2,2,2-trifluoroethyl) phosphite (TTFP) as flame-retardant (FR) additives in the liquid electrolyte of Li-ion cells is evaluated at both elevated temperature (40 degrees C) and room temperature (RT, 25 degrees C). The tested cells use mesocarbon microbeads (MCMB) and LiCoO2 as the anode and cathode materials, respectively. Cell characteristics are investigated by means of electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). The results of the cycle performance tests demonstrate the superior discharge capacity and capacity retention of the DPOF-containing cell compared will TTFP after cycling at both RT and 40 degrees C. Therefore, these results confirm the promising potential of DPOF as an FR additive for improving the electrochemical performance of Li-ion batteries. (C) 2008 Elsevier B.V. All rights reserved.
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Collections - Engineering > School of Advanced Materials Science and Engineering > 1. Journal Articles
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