Water-containing and anhydrous alkaline PEG-based solid polymer electr
olytes have been prepared, involving two different technologies. They
exhibit a high ionic conductivity, and values up to 10(-3) S cm(-1) ar
e obtained for some compositions at room temperature. Conductivity stu
dies and thermal analysis are presented, and the conductivity vs. temp
erature behaviour of each type of solid polymer electrolyte studied is
discussed. Preliminary results are reported concerning the cyclabilit
y of cells involving a nickel positive electrode, and a cadmium or a z
inc negative electrode.