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Nickel–hydrogen batteries are interesting (en.wikipedia.org)

submitted 1 year ago by [email protected] to c/[email protected]

6 comments fedilink hide all child comments

Lithium-ion is what the capitalists want you to use.

Nickel-hydrogen is three times heavier per unit of energy stored. Oh no. Sounds terrible. But it's –

Cheap. $83 per kilowatt-hour (https://www.pnas.org/doi/10.1073/pnas.1809344115)
Lasts 20,000 cycles compared to 400-1200 for lithium-ion, so far fewer will have to be produced and disposed of.
Materials. This is the big one. Lithium is rare. It costs a lot of energy to mine, and mining produces a lot of wastewater and CIA coups. Nickel is abundant and cheaper, and causes less damage.

Nickely-hydrogen batteries are for applications where you want something good enough and care about the planet. Lithium-ion is when you need luxury and don't care about externalities.

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[–] [email protected] 1 points 1 year ago (1 children)

Accounting for weight, does it otherwise last as long as lithium-ion batteries?

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

Longer then lithium ion and with no dendritic formation kinda* they do ware down over time just much slower and you can reverse it by exchanging the gas mixture, the devil is the psi needed to pump into the tanks. Beyond that tho the gas is recyclable but also flammable.