That is 180 from everything I have seen written about it. Batteries are....at least from what I understood....are the single worst think in the energy density area in every chart I have seen. With hydrogen being the best, and it should be it is an atomic number of 1. There is nothing smaller.
transportgeography.org
Electric cars are so hard to put your finger on. The electricity to do it can come from dozens of different sources, and your local power production can be very different from the next guy over. They key thing however is it is not clean by a long shot, and electric cars are very far from being as green as they tell us they are.
Electric cars do have their place, but it is not the magic bullet that so many seem to think they are, in some areas they are the single worst ways to move X from Y to Z. Ever wonder what happened to the Tesla over the road truck, it went the same way the nikola over the road truck. So many of these things start to fall apart when you look at them close. And so many things stated in many "pro battery" sites are just flat false. Oh well, I look at it like I will not be around to watch it all fall apart.
Energy density is only a part of the overall picture.
Keep in mind first that the article is specifically talking about hydrogen fuel cells which is pretty much how just about all the current generation hydrogen vehicles use hydrogen. The hydrogen is NOT burnt in an internal combustion engine to provide the force to move the vehicle, rather the hydrogen is used to make electricity which then provides the force to move the vehicle.
Due to the economy of scale as well as the technical complexity, it is currently much easier / cheaper to build a battery powered vehicle than a hydrogen fuel cell vehicle.
Hydrogen isn't all that easy to just get without a fair bit of energy to get it. The two main commercial ways are making it from natural gas or using electricity to make it. In both cases you could easily use the energy required to make hydrogen directly as the energy source instead of having an extra step or two with bringing hydrogen into the mix. You still need a pile of exotic/expensive mined materials.
Once your vehicle is built and delivered the problem for the rest of the life cycle of the vehicle is getting energy / fuel to it.
For a Natural Gas powered vehicle, NG is already in widespread use via a fairly efficient piping network, so building a fueling station requires installing the specialized equipment somewhere that already has NG going to it.
For a Battery Electric vehicle, it's even simpler, most places have electricity, delivered by an efficient distribution network. Now there is the issue that your generation / transmission capabilities may not be sufficient for widespread deployment, but assuming that can be managed / planned for it is something very much on the lines of upgrades to your existing system capacity or load demand scheduling.
When it comes to Hydrogen, distribution is much more difficult, with a great cost, time and complexity scale involved. Due to the nature of it, the hydrogen has to be transported in a very cold state by large tanker trucks and the process is a lot more complex due to Hydrogen heating up as it expands which requires special handling and equipment to keep everything going properly.
So all in all, by the time your hydrogen gas is powering your fuel cell to provide electricity for the electric motor in your hydrogen fuel cell vehicle to push your vehicle down the road, the all in cost for production and transport most likely exceeds the cost for just burning NG as your vehicle fuel or using electricity.
The range on hydrogen fuel cell vehicles currently is less than many higher end electric vehicles and you generally have all the same pollution problems at the production end and the same pollution issues in the transport side, so its an even more "not in my back yard" type issue when it comes to overall pollution, so it's NOT any more "green" or "sustainable" than just using electricity in a battery.
Demand is causing battery technology to rapidly evolve along with charging speeds.
It is very unlikely at this point that hydrogen power for your average road going vehicles will get anywhere near the widespread use that battery electric will.
If for some reason Electricity was to be too expensive to fuel a vehicle with, Hydrogen would probably be off the charts expensive.