In electrochemistry we talk about OCP where we measure the potential of the tested object relative to the reference electrode. OCV (if it is open circuit voltage ??) is the voltage measured between two objects without indicating the constant potential electrode (reference).

Regards

Stefan Krakowiak

OCP refers to the difference in electrical potential measured between a working electrode and a reference electrode in an electrochemical cell when no current is flowing, while OCV refers to the voltage measured over the entire open circuit of the electrochemical cell (the case of batteries).

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