In this case, Robert Alicki of the University of Gdansk in Poland, and Mark Fannes of the University of Leuven in Belgium, have defined a battery that stores and releases energy using quantum mechanics.
In theory, according to Alicki
and Fannes, it should be possible to build a quantum battery that is full of energy-rich quantum states - and then, somehow, recharge it when you run out of juice.
In essence, Alicki
and Fannes say that you can link together any number of quantum batteries, allowing you to extract all of the stored energy in one big gulp (pictured above).