A long-life insoluble electrode and process for preparing the same.

摘要

The present invention relates to preparation of insoluble electrodes having few surface defects and long life. The process for the preparation of electrodes comprises coating the surface of an electroconductive, corrosion resisting base metal with at least one member selected from the platinum group metals and applying laser beams having energy density of 1 kW/cm2 or higher to the coated surface at a laser energy of 10 kJ/cm2 or less. thereby improving said surface due to its rapid heat treatment.