Related topics: battery ยท fuel cell

Scientists propose IAP process for separation of aluminum alloys

Prof. Shi Weiqun's group from the Institute of High Energy Physics of the Chinese Academy of Sciences has proposed a modified electrorefining process to recover actinides, namely in-situ anodic precipitation (IAP). This study, ...

Scientists discover new approach to stabilize cathode materials

A team of researchers led by chemists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory has studied an elusive property in cathode materials, called a valence gradient, to understand its effect on battery ...

page 1 from 16


A cathode is an electrode through which electric current flows out of a polarized electrical device. Mnemonic: CCD (Cathode Current Departs).

Cathode polarity is not always negative. Although positively charged cations always move towards the cathode (hence their name) and/or negatively charged anions move away from it, cathode polarity depends on the device type, and can even vary according to the operating mode. In a device which consumes power, the cathode is negative, and in a device which provides power, the cathode is positive:

An electrode through which current flows the other way (into the device) is termed an anode.

This text uses material from Wikipedia, licensed under CC BY-SA