Electrodes are used to provide current through nonmetal objects to alter them in numerous ways and to measure conductivity for numerous purposes. Examples include:
●Electrodes for fuel cells
●Electrodes for medical purposes, such as EEG (for recording brain activity), ECG (recording heart beats), ECT (electrical brain stimulation), defibrillator (recording and delivering cardiac stimulation)
●Electrodes for electrophysiology techniques in biomedical research
●Electrodes for execution by the electric chair
●Electrodes for electroplating
●Electrodes for arc welding
●Electrodes for cathodic protection
●Electrodes for grounding
●Electrodes for chemical analysis using electrochemical methods
●Inert electrodes for electrolysis (made of platinum)
●Membrane electrode assembly
