A new configuration of the solid-state battery: magnesium ¦ polymer proton conductor ¦gold, based on the use of poly (o-methoxyaniline)

A solid-state battery was constructed by interfacing a pressed pellet of poly (o-methoxyaniline), in the emeraldine form with p-toluene sulfonic acid as doping agent, to a magnesium electrode covered with a film of magnesium perchlorate; the contact on the poly (o-methoxyaniline) was done by means of a gold electrode. The so-obtained cell, Mg ¦ magnesium perchlorate ¦ poly (o-methoxyaniline) ¦ gold, was able to supply energy with a power depending on discharge current and on environmental humidity. Values of power up to 2.5 mW cm−2 at discharge currents of about 2 mA cm−2 were reached.