Nickel–hydrogen battery

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Science and technology

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What Wikipedia says

A nickel–hydrogen battery (NiH2 or Ni–H2) is a rechargeable electrochemical power source based on nickel and hydrogen. It differs from a nickel–metal hydride (NiMH) battery by the use of hydrogen in gaseous form, stored in a pressurized cell at up to 1,200 psi (82.7 bar) pressure.

Excerpt from the Wikipedia article “Nickel–hydrogen battery”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NASA, Public domain, via Wikimedia Commons.