Compressed air is capable of much higher power flow than batteries and much cheaper than large capacitors, which is especially useful for braking. As such, it is really useful to complement batteries rather than replace them.
Also note that it might be possible to build a mild hybrid with compressed air for much cheaper than by adding batteries.
Air start system - Wikipedia, the free encyclopedia
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If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...
Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
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