What are Cathode and Anode?

Cathode and Anode are the basic terms of electrochemistry that are used to denote the two positive and negative parts of any electrochemical cell or battery. Now let’s learn about Cathode and Anode in detail.

Cathode Definition

In an electrochemical cell (such as a battery or electrolytic cell), the cathode is the electrode where reduction (gain of electrons) occurs.

Cathode is a crucial component in various electrochemical processes, playing a key role in facilitating reduction reactions. In the context of batteries, the cathode is the electrode where electrons are accepted from the external circuit during a spontaneous electrochemical reaction. The significance of the cathode extends beyond its role in electrochemistry. It serves as a critical element in technologies such as cathode-ray tubes (CRTs) and certain types of diodes.

Anode Definition

In an electrochemical cell, the anode is the electrode where oxidation (loss of electrons) occurs.

Anode is another important of an electrochemical systems, representing the electrode where oxidation reactions occur. In the context of batteries, the anode is the site where electrons are released to the external circuit during a spontaneous electrochemical reaction. This release of electrons is typically accompanied by the oxidation of ions or molecules, resulting in the development of a negative charge. In electronic devices like diodes, the anode is the electrode where current enters, and it plays a crucial role in regulating the direction of electric flow.

Charges on Cathode and Anode

In electrochemical cells,

• Cathode is associated with a Positive Charge and undergoes Reduction
• Anode is associated with a Negative Charge and undergoes Oxidation.

Cathode and Anode Meaning

Cathode and Anode are terms used to identify the two electrodes in an electrical device, such as a battery or an electrolytic cell.

Cathode and Anode in an Electrochemical Cell is shown in the image added below,

Cathode and Anode are commonly used terms in the context of electrochemistry, specifically in electrochemical cells like batteries and electrolytic cells. An anode is a negative or reducing electrode that releases electrons and oxidizes during an electrochemical reaction whereas a Cathode is a positive or oxidizing electrode.

In this article, we will learn about, Cathode, Anode, their differences, and others in detail.