Quote:
Originally Posted by lankydoug
...the most advanced battery can only hold 1/25th of the energy of the same weight of gasoline. I guess if batteries get 25 times better they will be on a level playing field assuming gasoline engine research stops to wait for batteries to catch up.
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According to this wikipedia spec: Battery is 9mj/kg and petrol is 43.2Mj/kg, that is less than 5 times as much, not 25.
But electric motors are 1/3 the weight and a much better torque/power curve.
We are at the tipping point where nano-string battery technology will not increase battery output by double, but by 10 times.
GMP, you can't make petrol motors green even if their is green energy available, but you can plug an electric bike into a water/solar/wind power station if available - that is my point.