3 ms·
Gasoline is 45MJ/kg. Lithium ion is ~0.5MJ/kg. Gasoline is ~100X energy dense compared to Li-ion batteries. It’s fundamentally very hard for batteries to come
by nojvek 3y ago
Gasoline is 45MJ/kg. Lithium ion is ~0.5MJ/kg.
Gasoline is ~100X energy dense compared to Li-ion batteries.
It’s fundamentally very hard for batteries to come anywhere close to hydrocarbon fuels.
One is pushing electrons around with anode/cathode, while hydrocarbon fuels are breaking the chemical bonds to release energy.
Intense electron gradient is pretty hard to achieve per unit mass. Electrons love their protons.
- JoeAltmaier 3y agoLiIon is 1MJ/kg? But yes, a wide margin. I see I was confusing Wh/kg with MJ/kg. Zinc-air could reach 5. Still down there.