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Porous Cathodes for Implantable Hybrid Cells
Journal article   Peer reviewed

Porous Cathodes for Implantable Hybrid Cells

Richard B Beard, Joseph F Derosa, Robert M Koerner, Stephen E Dubin and Kenneth J Lee
IEEE transactions on biomedical engineering, v BME-19(3), pp 233-238
May 1972
DOI: https://doi.org/10.1109/TBME.1972.324122
PMID: 5021222

Abstract

Area measurement Cathodes Compaction Electrodes In vitro In vivo Plastics Platinum Powders Shape
The in vivo power output of implantable power sources using porous platinum- or palladium-black cathodes is approximately four to five times greater than ones using commercially available cathodes of platinum black dispersed in Teflon. Porous electrodes produce a much lower foreign-body reaction than electrodes with plastic binders. Comparison of BET surface-area measurements for the powders and compacted electrodes illustrate that there is an approximate 20-percent decrease in surface area following compaction. The particle size, distribution, and shape of the powders were studied with the aid of scanning electromicrographs. In vitro galvanostatic measurements were made on the implantable power sources to study the electrochemical activity before implantation.

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