| abstract |
An electrochemical cell is made with two symmetric electrodes and a solid polymer electrolyte disposed therebetween. The symmetric electrodes, anode and cathode, are made from materials such as ruthenium, iridium, cobalt, zinc, bismuth, cadmium, silver, and their oxides. The solid polymer electrolyte is in intimate contact with both the anode and cathode and is fabricated from a polymer support structure, such as polyvinyl alcohol, having proton conductive electrolyte active species dispersed therein. |