Annealing of mixed metal oxide electrodes to reduce polarization resistance

摘要

The thermal treatment of electrodes, e.g. transition metal oxide electrodes such as silver vanadium oxide cathode plates contacted to titanium current collectors, for the purpose of reducing polarisation resistance in an electrochemical cell, is described. The electrodes may be exposed to an elevated temperature of at least about 225 DEG C for about 8 hours prior to cell fabrication. The present heat temperature regime is particularly useful in cathodes intended for fabrication into a cell powering an implantable medical device with improved polarization resistance and/or reduced heat dissipation.