This was developed by the University in Australia. It seems to be two or three separate parts. It takes solar electricity and converts it to hydrogen. The H2 is stored in metal hydride ?cartridges? Then the H2 is made into electricity by fuel cells. It says that it also has a 5 kWh lithium battery to supply power while the fuel cell warms up to then make full power. So this lithium battery has a limited lifespan.
The video says it’s called LAVO.
https://www.facebook.com/693504594115135/posts/2337022393096672/