Battery Science: Introduction to Electrodes
Primary battery A device that spontaneously sends an electric current to an external circuit load connected with two electrodes and the external circuit A primary battery, also known as a non-rechargeable battery or a dry cell, is a device that spontaneously generates an electric current and delivers it to an external circuit load connected to its two electrodes. It typically consists of one or more chemical substances that undergo a chemical reaction to produce electrical energy. The operation of a primary battery relies on electrochemical processes occurring during the chemical reaction. The battery has two electrodes: an anode and a cathode . These electrodes are separated by an electrolyte,