Nickel is $12/lb, lithium $31/lb. Nickel atomic weight is 59, lithium is 7. $12 * 59/7 == $101 There's one electron per nickel atom and one electron per lithi

Nickel is $12/lb, lithium $31/lb. Nickel atomic weight is 59, lithium is 7. $12 * 59/7 == $101 There's one electron per nickel atom and one electron per lithium atom. Nickel is 3x more expensive than lithium on that basis alone. The only useful place I see for NiZn is drop-in replacement for alkaline cells, not mass storage. Nickel is the one of the most expensive part of lithium batteries: https://www.cnbc.com/2022/03/08/nickel-price-surge-could-threaten-automakers-ev-plans.html https://www.cnbc.com/2022/03/08/nickel-price-surge-could-thr... I'm not sure where you get the idea that it is cheaper. > LiFePO₄ are basically never recycled in practice. Because they haven't reached end-of-life yet. No one is going to recycle perfectly good batteries.