industrial applications of displacement reactions and electrochemical cellsWatch
Website links and keywords for google research are welcomed
Electrochemical cells are huge and are a major research area in chemistry. The typical one is the Li-ion battery, but that's a bit boring now. Look at the lithium-air battery, this could be the future in terms of electrochemical cells.
Tesla have a huge Li-ion battery in Australia. This is interesting and can power the entire town for x amount of time.