Ultracapacitors store electrical energy through static charge separation in a double-layer of electrodes, instead of chemical reactions like in batteries. This allows them to charge and discharge ...

In the process, ions from seawater are attracted to the electrode surface and charged ions are stored in an electric double layer formed there. In addition to purifying water, the ions can be ...

A research group led by Nagoya University in Japan has discovered a new technique for improving the electrodes that convert seawater into potable water using oxygen. Their improved material ...