potentiometry open circuit voltage potentiometry As an electrochemical technique for measuring and characterizing batteries and E-chem cells. OCP OCV A potentiometry where the potential difference between two electrodes (typically a working and a reference electrode) is measured under open circuit conditions, ensuring that no significant current flows and the system remains in thermodynamic equilibrium. The measured characteristic is the Open Circuit Voltage (OCV) also called Open Circuit Potential (OCP). CHMO:0002933 OCP measurement OCV measurement OCV potentiometry