A potentially implantable glucose fuel cell with Raney-platinum film electrodes for improved hydrolytic and oxidative stability

Febr 2011

Kerzenmacher S, Kräling U, Metz T, Zengerle R, von Stetten F

Journal of Power Sources 196 (2011) 1264–1272

Journal of Power Sources      online article

We present an improved glucose fuel cell, intended as tissue-implantable and sustainable power supply for medical implants. During performance characterization in phosphate buffered saline containing glucose and oxygen the diffusion resistance to be expected from tissue capsule formation was taken into account. Here the Raney-platinum fuel cells exhibit a power density of up to (4.4 ± 0.2) µW cm-2 at 7.0% oxygen saturation, which exceeds the performance of our previous carbon-based prototypes.