Author/Authors :
Mohamad، نويسنده , , A.A. and Mohamed، نويسنده , , N.S and Yahya، نويسنده , , M.Z.A and Othman، نويسنده , , R and Ramesh، نويسنده , , S and Alias، نويسنده , , Y and Arof، نويسنده , , A.K، نويسنده ,
Abstract :
X-ray diffraction (XRD) pattern reveals that potassium hydroxide (KOH) disrupts the crystalline nature of poly(vinyl alcohol) (PVA)-based polymer electrolytes and converts them into an amorphous phase. The PVA–KOH alkaline solid polymer electrolyte (ASPE) system with PVA/KOH wt.% ratio of 60:40 exhibits the highest room temperature ionic conductivity of 8.5×10−4 S cm−1. This electrolyte was used in the fabrication of a nickel–zinc (Ni–Zn) cell. The cell was charged at a constant current of 10 mA for 1 h providing it with 1.6 V. The cell was cycled 100 times. At the end of the last cycle, the cell still contained a capacity of 5.5 mA h.
Keywords :
Poly(vinyl alcohol) , Potassium hydroxide , Alkaline solid polymer electrolyte , Nickel–zinc cell
