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NiZn almost certainly cheaper than LiFePO₄, at least once they get to scale. Problems like self-discharge or cycle-life likely vary depending on cell design. I'
by _hypx 4y ago
NiZn almost certainly cheaper than LiFePO₄, at least once they get to scale. Problems like self-discharge or cycle-life likely vary depending on cell design. I'm sure you can design a cell that has less of these problems. It is also much easier to recycle than LiFePO₄ batteries, which is a big advantage. LiFePO₄ are basically never recycled in practice.
Should be noted that no one is suggest that NiZn is the end-all be-all battery chemistry. It is just a neat idea that is worth investing in, and will work in a lot of circumstances.
- coryrc 4y agoNickel 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.