Dino juice v Electrons....
Towing just got longer....A LOT LONGER...(and harder) Well....I guess it would work.....if you're retired....and like to wait around at charging stations half of your life.....and like to play soli...
Forum Discussion
propchef wrote:
I do not understand that graphic at all. What exactly do you mean by "energy density" or are you referring to "power density"?
Diesel burns to create heat which is used for power. Lithium is used as a material in a storage system for electricity (battery) and does not generate any power of its own. Why don't you compare the energy density of diesel to say, lead? Or sulfuric acid?
And batteries can be recharged. Can't do that with liquid fuel.
I suggest taking a physics class that covers the difference between energy and power.
EVs win on power density. Of course, that has nothing to do with the battery bank. One measure of that would be HP/lb of motor. A 200HP electric motor is going to be significantly lighter than an equivalent HP ICE, so the electric motor has greater power density.
Energy Density relates to how much energy can be stored. Kilowatt Hour (KWH) is one common measurement of Energy. An 80 KWH tesla battery weighs around 1200lb. That translates to an energy density of round 133 KWH/ton.
Diesel is a bit under 12,000 KWH/ton.
Now, EVs use those KWH more efficiently but even accounting for that, it's not even close in terms of how much Energy you can store and that's the crux of long range heavy towing. An 80k lb truck trying to do 500miles/day is going to need a battery that weighs several tons because energy density of batteries is too low.
