An anode is a positively charged electrode, which is used in electrochemical cells and other electrical devices. It is the terminal where current flows into the device, and it is typically made of a metal or other conductive material. Anodes are important components in many types of batteries, as they allow for the flow of electrons from the negative terminal to the positive terminal. In electrolysis, anodes are also used to attract positively charged ions, allowing them to be separated from negatively charged ions.