The BIGGEST problem with clean energy

Wow anti-battery much?  Batteries catch fire, what do you think a hydrogen tank compressed to 300 atmospheres would do? 
Batteries cost too much: Solid state batteries are coming which will: 
1. Not blow up
2. Cost 60% less 
3. Have a much higher cycle life (losing only 10% capacity even after over 30,000 cycles).
4. Higher energy density as the solid state packs are smaller for the same Watt hours
5. Can possibly go up to 560Wh+ per kg which makes them light enough to be used in aircraft with good range.
Lithium is limited in supply: Lithium can now be extracted directly from seawater using a fraction of the time and energy compared to the current method of letting it evaporate in huge ponds.

Many batteries labs are now experimenting with non lithium combinations, aluminium air, glass silicon (John Goodenough ;).  With breakthroughs in increased density, cycle life and lower cost being reported every week, it won't be long before Hydrogen will have missed the boat.  

Hydrogen on the other hand: 
1. Currently has little to no infrastructure in place to support a network of refueling cars, to the point where Toyota had give away 65,000 of hydrogen with the car just to try and entice people to buy it.
2. Has poor energy conversion, once you put in energy to convert it to hydrogen, energy to compress to 300 atmospheres, energy to transport it, put it back through a fuel cell you've lost over *two thirds* of the energy put in. Similar to a fossil fuel engine of around 28% round trip efficiency.  Compare that to an Electric car where 95% of the energy put in is used to move the vehicle. 
3. Most hydrogen in reality will come from steam reforming natural gas, which releases carbon in the process, only worsening the effects of climate change.
This is simply *Green Washing* to allow the fossil fuel industry to keep selling carbon polluting gas.