Fabrication and Evaluation of Cathode and Anode Materials for Implantable Hybrid Cells

The power output of flexible zinc and aluminum anodes in a plastic binder compared favorably with that of pure metals used in previous implantable hybrid cells. Cathodes of platinum and palladium black in a polyvinyl chloride binder compared well with cathodes of platinum black in teflon. In-vivo and in-vitro measurements on palladium black cathodes with a polyvinyl chloride binder indicate that they perform better than the platinum black cathodes using plastic binders. A spreading resistance measurement correlated with the catalytic activity of the cathode. Modified galvanostatic and spreading resistance measurements were used in in-vitro studies to evaluate the fabricated cathodes.