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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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[-] FanonFan@hexbear.net 4 points 1 year ago

Lot of applications where weight isn't an issue too.

this post was submitted on 30 Sep 2023
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