A flame retarding separator with improved thermal stability for safe lithium-ion batteries

This study demonstrates a new flame retarding separator (FRS) based on brominated poly(phenylene oxide) (BPPO) which remarkably reduces the flammability of the liquid electrolyte without decrease in electrochemical performances such as ionic conductivity and cycle life of a lithium-ion battery. The...

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Bibliographic Details
Published in:Electrochemistry communications 2013-10, Vol.35, p.68-71
Main Authors: Woo, Jung-Je, Nam, Sang Hoon, Seo, Seok-Jun, Yun, Sung-Hyun, Kim, Won Bae, Xu, Tongwen, Moon, Seung-Hyeon
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Flame retardant
Lithium-ion battery
Safety
Separator
Thermal shrinkage
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Summary:This study demonstrates a new flame retarding separator (FRS) based on brominated poly(phenylene oxide) (BPPO) which remarkably reduces the flammability of the liquid electrolyte without decrease in electrochemical performances such as ionic conductivity and cycle life of a lithium-ion battery. The FRS showed improved thermal stability, higher ionic conductivity and stable cycling performance of the Li/LiFePO4 cell compared with the PE/PP separator. •A flame retarding separator (FRS) reduced the flammability of liquid electrolyte.•The conductivity of FRS was 2.9 times higher than that of the PE/PP separator.•The Li/LiFePO4 cell using the FRS showed stable cycling performance.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2013.08.005