An electrochemical study of PEO:LiBF4−glass composite electrolytes

摘要: Abstract Several solid electrolytes derived from poly(ethylene oxide) doped with lithium tetrafluoroborate and a high conductivity borosulfate glass were formulated investigated for their electrochemical performance. The characterization included a.c. impedance measurements, the temperature dependence of conductivity, scanning electron microscopy (SEM), cyclic voltammetry (CV), charge/discharge cycling symmetric cells. ionic conductivities these at ambient around 10 −7 S cm −1 . Although no significant improvement in was observed, voltammetry, spectroscopy, data on Li/polymer/Li Li/polymer/ Ni cells reveal that electrode reactions are facilitated by incorporation.