Exactly, my money would be on an inert storage format - if you could mass produce hydrogen and keep it around safely inert (with low energy cost to convert it b

Exactly, my money would be on an inert storage format - if you could mass produce hydrogen and keep it around safely inert (with low energy cost to convert it back), EVs would be beat so bad in the long run it wouldn't even be funny... EVs are nice in short term but battery issues like these illustrate their (should be obvious) shortcomings. WRT to this battery technology, ironically the same sector being targeted by hydrogen might benefit, i.e. rail tech - if you stick a high number of cheap batteries onto a large, heavy motorcar, the energy differential is almost negligible as you make up for it in part through momentum, but also just scale (more passengers transported per watt, more charge available per trip).