“Their energy density isn’t great compared to batteries, storing maybe a quarter of the power lithium units can for a given volume”
Still a long way to go - but would be good for power spike requests in working in conjunction with Lion batteries.
Lithium is used in many batteries. Especially in the open ppg. Lithium’s atomic number is 3. This means it has only 3 protons. Carbon’s atomic number is 6. This means it has 6 protons. That’s twice as many protons as lithium, and this it is twice as heavy. Besides, lithium can be taken from the earths crusts and in the future from near earth meteors. Carbon nano tubes are not naturally occurring like lithium is.
That’s why hydrogen is #1
Hydrgen is what made the Hindenburg blow up. Hydrogen is too explosive.