Buoy photo: Girma Nigusse
Rechargeable seawater batteries (SWBs) are fire safe, environmentally benign, and less expensive than lithium-ion batteries. They are a promising type of sodium-based battery that uses seawater as the cathode. Scientists have found a way to produce them at a reasonable cost. SWBs can be safely operated while completely submerged in seawater. They can supply emergency power in coastal nuclear power plants and can be installed on buoys to aid in navigation and fishing as well as installed as a power source for salvage equipment on passenger ships.
Story Source: National Korea Maritime and Ocean University.
www.sciencedaily.com/releases/2022/01/220131153302.htm