Na⁺Ion Conducting Hot-pressed Nano Composite Polymer Electrolytes

Abstract

Synthesis, characterization and polymeric battery studies of Na + ion conducting NanoComposite Polymer Electrolyte (NCPE) membranes: (1-x) [75PEO: 25NaPO 3 ]: x SiO 2 , where x = 0 -15 wt. (%), has been reported. NCPE membranes have been casted using a novel hot-press technique in place of the traditional solution cast method. The dispersal of SiO 2 in SPE host: (75PEO: 25NaPO 3 ), a conductivity enhancement of an order of magnitude achieved in NCPE film: [93 (75PEO: 25NaPO 3 ): 7 SiO 2 ]. This has been referred to as Optimum Conducting Composition (OCC). Material characterizations have been done with the help of XRD, SEM and DSC techniques. The ion transport behaviour in hot-pressed NCPEs has been discussed on the basis of experimental measurements on some basic ionic parameters viz. conductivity (σ), ionic mobility (µ), mobile ion concentration (n) and ionic transference number (t ion ). The temperature dependent conductivity studies have been done to compute the activation energy (E a ) values from the 'log σ -1/T' Arrhenius plots. The ion conducting solid state polymeric battery was fabricated and cell-potential discharge characteristics have been studied at different load conditions.

Performance of A Sodium Thiocyanate Based Gel Polymer Electrolyte In Redox Capacitors

“…This indicates that the GPE is predominantly a good ionic conductor. Value of ionic transference number obtained in this study is nearly equal to the values reported by Chandra et al, and Kumar et al, for sodium ion conducting polymer electrolytes (Chandra et al, 2012;Kumar & Hashmi 2010). A resultant impedance plot of redox capacitor is shown in figure 07.…”

Conducting polymer composites for supercapacitors

“…The dry powders of highest conducting composition were homogeneously mixed with different wt.% ratios of nano-fillers and heated ~ 70-80 o C to form a slurry, then pressed between SS blocks resulting finally into a mechanically stable CPEs. In the present research laboratory, a number of CPEs have been synthesized in this very quicker method [8][9][10].…”

Understanding the Electrochemical Compatibility and Reaction Mechanism on Na Metal and Hard Carbon Anodes of PC-Based Electrolytes for Sodium-Ion Batteries

“…Electrolytes of SIBs mainly include the following: liquid electrolytes (nonaqueous liquid electrolytes, − aqueous liquid electrolytes, ,− ionic liquids, − etc. ), glass and ceramic electrolytes, − solid polymer electrolytes, − gel polymer electrolytes, − and so forth. In these electrolytes, nonaqueous liquid electrolytes have been widely investigated for SIB systems because of their wide electrochemical window, high ionic conductivity, low viscosity, and chemical and electrochemical stability.…”