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Compressed gas is not too dangerous to use. It is an energy density problem. There are prototype vehicles that fill the same niche as current EVs.

• Tagbert 5y ago
  Failure rates for automotive Li batteries are quite low. In the range of 0.001 per 100K vehicles.
  • R0b0t1 5y ago
    I'm aware, and compressed gas storage containers are equally low if not lower. They also fail in a way that is safer than batteries fail. The tanks are engineered to split and the limited, usually zero, shrapnel is redirected downward. What really limits compressed air as a vehicle energy store is the inability to reasonably run climate control off of it.
    • lazide 5y ago
      And the incredibly low round trip efficiency - heat production then loss to the environment as part of compression is pretty brutal on that front.