A novel fluorocyclophosphazene as bifunctional additive for safer lithium-ion batteries
(0) A high-efficiency flame-retarding additive, (Ethoxy)pentafluorocyclotriphosphazene (N3P3F5OCH2CH3, PFPN), has been synthesized and explored as a safer protection additive for rechargeable lithium batteries.The flammability tests indicate that only the addition of 5 wt% PFPN can make the electrolyte be totally non-flammable.As far as we know, the PFPN additive is the most efficient one of any flame-retarding additive ever synthesized and reported in the literature.The charge-discharge results demonstrate that the PFPN additive shows a good electrochemical compatibility on the graphitic anode and LiCoO2 cathode.Meanwhile, the incorporated PFPN additive can greatly improve the cyclic performance of LiCoO2 electrode at a high cut-off voltage of 4.5 V, showing a prospective flame-retarding additive for the applications in high-voltage lithium ion batteries.
Lithium ion battery Safety Non-flammable electrolyte (Ethoxy)pentafluorocyclotriphosphazene Flame-retardant additive high-voltage
Lan Xia Yonggao Xia Zhaoping Liu
Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy of Sciences,Ningbo, Zhejiang, 315201, P.R.China
国内会议
宁波
英文
758-777
2014-11-11（万方平台首次上网日期，不代表论文的发表时间）