Hydrogen bottle vs Lithium battery 6.5 kg is this bottle with 0.9 m³ hydrogen gas. This are 2673 Wh chemical. A fuel cell has to convert this into electric power.  

Hydrogen bottle vs Lithium battery

6.5 kg is this bottle with 0.9 m³ hydrogen gas. This are 2673 Wh chemical. A fuel cell has to convert this into electric power.

With 40% fuel cell efficiency 1069 Wh electricity. But the fuel cell has also a weight.

This has to be compared with a 25Ah or 40Ah 48V Lithium Polymer battery Is also exchangeable and can is less heavy than bottle and fuel cell.
index: 2007 2007 
Index: Hydrogen fuel cell vehicles Hydrogen 
Index: Hydrogen tank and infrastructure Hydrogen tank 


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