katódba

Katódba is a term related to electrochemical processes, specifically referring to the negative electrode in an electrolytic cell or galvanic cell. In an electrolytic cell, the cathode is where reduction occurs, meaning it attracts positively charged ions (cations) from the electrolyte, which then gain electrons and are reduced. In a galvanic cell, also known as a voltaic cell, the cathode is the electrode where spontaneous reduction takes place. This is the electrode that serves as the positive terminal of the cell.

The material of the cathode can vary greatly depending on the specific application. For instance, in electroplating, the cathode is typically the object to be coated, and metal ions from the electrolyte deposit onto it. In batteries, the cathode is one of the two terminals that generate electrical energy. The chemical reactions occurring at the cathode are crucial for the overall function of the electrochemical device. Understanding the behavior and role of the cathode is fundamental to comprehending electrochemistry, electroplating, battery technology, and many other scientific and industrial applications.