I drove 1800 miles in a Hydrogen Car

This is the future. I also thought hydrogen fuel cell involved burning hydrogen to power a combustion engine, but was pleasantly surprised to learn that it isn't. On a side note, hydrogen combustion could become a viable alternative to powering jet aircraft in the not-too-distant future.

If we use solar, nuclear (fusion, maybe?), or another low/no-emission power source to process the hydrogen fuel, it would be substantially better than the highly toxic and carbon-intensive processes involved in manufacturing and recycling batteries today. 

This could also be an option for renewable energy storage, which is a challenge that researchers are working through right now as well. I'm personally a fan of "gravity batteries" (where a massive object is raised very high up; during sunlight, for example; and allowed to spin a generator as it falls when power draw is needed). Infrastructure and scale are definitely the biggest challenges, but this has me really interested and excited about what's to come!