Electrode
An electrode is a conductor through which electric current enters or leaves an electrical device or medium, such as an electrolyte, vacuum, or semiconductor. It is a crucial component in various electrical systems and devices, including batteries, capacitors, electrochemical cells, and electronic sensors.
In the context of batteries and electrochemical cells, electrodes are the points where chemical reactions occur. These reactions involve the transfer of electrons between the electrode and the electrolyte, resulting in the conversion of chemical energy into electrical energy (during discharge) or vice versa (during charging).
There are typically two types of electrodes:
Anode
The electrode where oxidation (loss of electrons) takes place during a chemical reaction. It is the negative terminal during battery discharge.
Cathode
The electrode where reduction (gain of electrons) takes place during a chemical reaction. It is the positive terminal during battery discharge.
In other applications, such as in electronic devices and circuits, electrodes can serve various functions, including signal input/output, sensing, or modulation of electric fields. Electrodes can be made from a wide range of materials, depending on the specific application requirements, including metals, conductive polymers, and semiconductors. The choice of electrode material can significantly impact the performance, efficiency, and durability of the overall system.
- The BatterySharks Team
