Yes, it's not there yet, but approaches based on metal hydrides are one of the leading contenders for storing hydrogen for electric vehicles powered by fuel cel

Yes, it's not there yet, but approaches based on metal hydrides are one of the leading contenders for storing hydrogen for electric vehicles powered by fuel cells. Generally, the energy density is better than a battery, but much worse than a hydrocarbon fuel. Here's an overview: https://en.wikipedia.org/wiki/Hydrogen_storage#Metal_hydrides https://en.wikipedia.org/wiki/Hydrogen_storage#Metal_hydride...