Abstract
We report that tris(2,2,2-trifluoroethyl) phosphite (TTFP), in which the oxidization number of phosphor is three (III), can effectively improve thermal stability of LiPF 6 -based electrolytes of Li-ion cells. Effect of TTFP on the performance of Li/graphite, Li/cathode, and Li-ion cells is estimated using cyclic voltammetry and galvanostatic cycling. Results show that TTFP is electrochemically stable in Li-ion chemistry. We also found that TTFP can prevent propylene carbonate (PC) decomposition and graphite exfoliation in Li/graphite half-cell. We propose a mechanism of TTFP protecting LiPF 6 and discuss the effect of TTFP on cell performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
