Journal
JOURNAL OF POWER SOURCES
Volume 243, Issue -, Pages 29-32Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.05.170
Keywords
Resorcinol bis(diphenyl phosphate); Electrolyte additive; Flame retardant; Overcharge protection; Lithium ion batteries
Funding
- National Natural Science Foundation of China [21203110]
- Independent Innovation Foundation of Shandong University (IIFSDU)
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A novel flame retardant, Resorcinol bis(diphenyl phosphate) (RDP), is successfully synthesized and investigated as electrolyte additive for lithium ion batteries. It is found that RDP can be electropolymerized at 4.4 V (vs. Li/Li+), which will protect the batteries from voltage runaway by consuming the overcharge current. Moreover, RDP addition could lower the self-extinguishing time (SET) of the electrolyte. The influence of proper RDP addition on the cycling performance and capacity is negligible. Thus, RDP could be used as a novel electrolyte additive for lithium ion batteries functioned as both overcharge protection and flame retardant. The results may also be helpful for the further design of advanced lithium ion battery electrolytes. (c) 2013 Elsevier B.V. All rights reserved.
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