Effect of fillers on magnesium–poly(ethylene oxide) solid polymer electrolyte

Abstract

A solid polymer electrolyte (SPE) film consisting of poly(ethylene oxide) (PEO) with magnesium chloride as electrolytic salt and B 2 O 3 as the filler has been prepared by solution casting technique. The polymeric film was flexible and self-standing with proper mechanical strength and studied for application in a solid-state rechargeable magnesium battery. The interactions between the filler and PEO chains are studied by differential scanning calorimeter and Fourier transform infrared techniques. Composition of SPE is optimized, and maximum conductivity is obtained at 2 wt% B 2 O 3 . Filler seems to increase the number of free magnesium cations by decoordinating the bond between magnesium cations and ether oxygen of PEO. Cyclic voltammetry results show the reversible capability of magnesium electrode. Solid-state magnesium cell employing magnesium anode, SPE, and manganese oxide was assembled, and its open circuit voltage is found to be 1.9 V.

Electrical and electrochemical studies on magnesium ion-based polymer gel electrolytes

“…Due to this reason, the higher conductivity of polymer gel electrolyte as compared to pure liquid electrolyte is observed at lower concentration of polymer. Further, it is observed that [PVdF(HFP) (15 wt%)-PC-Mg(ClO 4 ) 2 (0.3 M)] composition of gel polymer electrolytes under present investigations, having free-standing film, exhibits maximum ionic conductivity of 5.0×10 −3 S cm −1 at room temperature, which is appreciably higher than the values reported by different workers in the literature [5][6][7][8][9][10][11][12][13][14][15][16]. Since the order of conductivity of gel electrolytes as obtained in the present studies (5.0×10 −3 S cm −1 ) shows better performance as compared to the reported one and these are acceptable values from a device fabrication point of view, finally, this composition of gel polymer electrolytes is chosen for further investigations and has been tested successfully for its application in supercapacitor as an electrolyte material.…”

“…Further, the magnesium-based electrochemical devices are more attractive from a device fabrication point of view due to their cost effectiveness, low toxicity, ease of handling, and safer than lithium. Magnesium ion-based gel polymer electrolytes have not been widely reported except for some recent studies [11][12][13][14]. Few rechargeable magnesium batteries were also reported by some workers using polymer gel electrolytes [10,15,16].…”

Effect of plasticizer on conductivity and cell parameters of (PMMA+NaClO4) polymer electrolyte system

“…Solid polymer electrolytes have many advantages, such as no leakage, volumetric stability, ease of fabrication of thin films of desired size, and wide electrochemical stability windows [3]. Various approaches such as blending [4,5], copolymerization [6], plasticization [7], addition of ceramic fillers [8] etc. have been made to enhance the ionic conductivity of polymer electrolytes [9].…”

Electrical and optical properties of pure and KClO3-doped P(MMA-CO-4VPNO) polymer electrolyte films

“…The electrical and optical properties of polymers will be well modified with the addition of dopants depending on their reactivity with the host matrix. Although some work has been done on the charge carrier transport and optical properties of doped polymer electrolyte films [5][6][7][8][9], very little work is available on copolymers [10][11][12]. Since K + is a fast conducting ion in a number of crystalline and amorphous materials, its incorporation in a polymeric system may be expected to enhance its electrical and optical performance.…”