Current battery tech has a slow and steady progression of improvement. There is bound to be a market disruptor at some point in the future, but it’s far from a guarantee that it’s going to be hydrogen.
I believe the biggest hurdle to any changes to current battery tech is that it costs so much to develop an entirely new process and build factories. Most innovation is in the form of small adjustments. For hydrogen to overcome this hurdle it would have to either be extremely cheap or have some unique property. For cars I don’t see hydrogen having that much of an advantage, but maybe electric planes would be feasibly powered by hydrogen due to the much improved weight to energy ratio.
I believe the biggest hurdle to any changes to current battery tech is that it costs so much to develop an entirely new process and build factories. Most innovation is in the form of small adjustments. For hydrogen to overcome this hurdle it would have to either be extremely cheap or have some unique property. For cars I don’t see hydrogen having that much of an advantage, but maybe electric planes would be feasibly powered by hydrogen due to the much improved weight to energy ratio.