this post was submitted on 13 Feb 2026
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New nickel-iron battery charges in seconds, survives 12,000 cycles (interestingengineering.com)
submitted 1 day ago by throws_lemy@reddthat.com to c/technology@lemmy.world
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[–] homesweethomeMrL@lemmy.world 30 points 23 hours ago (1 children)

The technology uses nickel and iron clusters smaller than 5 nanometers, meaning 10,000 to 20,000 clusters could fit within the width of a human hair. 

By using these dimensions, the researchers increased the electrode surface area, allowing almost every atom to participate in the chemical reaction. This efficiency enables the battery to reach a full charge in seconds rather than the seven hours required by historical versions of the technology.

[–] SaveTheTuaHawk@lemmy.ca 12 points 22 hours ago (1 children)

5nm nano fabrication will cost a fortune. this week's cure-all battery.

[–] TonyTonyChopper@mander.xyz 21 points 22 hours ago (1 children)

Nano chemistry is entirely different from nano fabrication. I haven't read the paper but most materials like this are made by mixing chemicals in a beaker and/or heating them in a furnace.

[–] frongt@lemmy.zip 8 points 16 hours ago

Yeah, that's exactly what they do. You can click through to the original article and then the paper abstract if you want, but yeah they mix graphene and protein and heat it.