Re: How many battery "breakthroughs" is that this year?
"If you try even triple energy density of Li-Ion battery (0.875MJ/kg x 3) you're right next to gunpowder which has energy density of 3 MJ/kg. If you want increase it 5 times you're now in TNT territory (4.6 MJ/kg)."
And yet we drive around with even a larger bomb in our vehicles every day. Gasoline has an energy density of 45.7 MJ/kg