Batteries are a kind of semiconductor. They're bigger than others, but still semiconductors. Most kinds of semiconductors have a stage in the history of their

Batteries are a kind of semiconductor. They're bigger than others, but still semiconductors. Most kinds of semiconductors have a stage in the history of their development where their cost / performance ratio does am exponential Moore's - law plunge. Batteries could get there. So, all sorts of research are good. In the meantime, maybe this kind of tech could be used to combine PV solar panels with electrical storage.