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submitted 2 months ago by BrikoX@lemmy.zip to c/technology@lemmy.zip

While lithium extraction technologies generally focus on ways to get the essential metal out of the ground, there's another source to mine: existing batteries that no longer work. A new technique could now make that process economically viable.

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[-] ivanafterall@lemmy.world 61 points 2 months ago

I have a hard time believing it's cheaper than from my local lithium guy.

[-] passepartout@feddit.org 14 points 2 months ago

I have a slight suspicion we're not talking about the same lithium here

[-] Ulvain@sh.itjust.works 7 points 2 months ago

Stop it before you give some MAHA influencers the idea for a new "ditch your mood stabilizers, lick used batteries instead!" trend.. 😵

[-] Whitebrow@lemmy.world 3 points 2 months ago

Licking batteries has been proven to lighten your mood according to three major scientists with published papers in Nordic countries.

Used batteries just come with the extra benefit of being multi use, first in your regular electronics, and then in your synapses.

[-] Omgpwnies@lemmy.world 1 points 2 months ago

How else would you recharge after a long day?

[-] frunch@lemmy.world 3 points 2 months ago

That's the advantage of sourcing it locally, of course. I have a feeling these guys have gamified lithium collection through an app like uber or grubhub or airbnb, ultimately taking all the advantage we once had for simply being local...

[-] mattyroses@lemmygrad.ml 1 points 2 months ago

Yeah, but with him you gotta go over to his shitty apartment and let him charge a bit to make the deal

[-] AI_toothbrush@lemmy.zip 32 points 2 months ago

Idk where they got the picture from but 4300mah in aa size would be insane. Thats like 2.5 times as much capacity as how much the best ones provide currently.

[-] rizzothesmall@sh.itjust.works 33 points 2 months ago

Was gonna say maybe they're 18650s but it Def says AA on them. I'm gonna go with it's a made up / AI-generated image

[-] AI_toothbrush@lemmy.zip 5 points 2 months ago

Yeah probably tho i kinda wish they existed lol

[-] cmnybo@discuss.tchncs.de 2 points 2 months ago

They would have to be 21700 cells to hold 4.3AH. 18650 cells top out around 3.6AH. While it is possible to make higher capacity cells, there are some major downsides with doing so.

[-] BCOVertigo@lemmy.world 15 points 2 months ago

It's just a stock photo used since at least 2017 that appears to have had the 4300mah text added on more recently.

Looks like AI to me. Also, those would most likely be NiMH batteries, which AFAIK don't have any lithium.

[-] AI_toothbrush@lemmy.zip 4 points 2 months ago

The way its packaged with the indent at the top would make it a lithium cell but yeah its fake anyways

Maybe they’re just ultra fire batteries?

[-] Septimaeus@infosec.pub 3 points 2 months ago* (last edited 2 months ago)

In case anyone’s curious: it is likely a cell wrapper misprint/typo.

4300mWh AA lithium ion cells are a standard extended-life chemistry. 2866 mAh is their actual rated capacity.

Edit: 2866 x 1.5 = 4,300

[-] BlackVenom@lemmy.world 1 points 2 months ago

There are plenty of cells that size over 3000mah.

[-] AI_toothbrush@lemmy.zip 3 points 2 months ago

The highest capacity one that is properly commercially available is the vapcell f15 which is known for quality control issues. Its advertised capacity is 1500mah but multiple sources measured it at an actual usable capacity of 1250-1350.

[-] BradleyUffner@lemmy.world 18 points 2 months ago

That means battery prices will be coming down, right? Right?

[-] plenipotentprotogod@lemmy.world 51 points 2 months ago

You say that like they havent been? The price per kWh for lithium batteries has been consistently falling for over a decade. I see no reason to believe that this tech wouldn't result in further price decreases if it could be built at scale.

[-] AntiBullyRanger@ani.social 4 points 2 months ago* (last edited 2 months ago)
[-] AOCapitulator@hexbear.net 3 points 2 months ago* (last edited 2 months ago)

Bullshit, just like we can replace fossil fuels by making algae biofuel (leaving out the part where there's no possible way to scale that enough to do ANYTHING)

I'd love to be wrong tho

[-] lazynooblet@lazysoci.al 2 points 2 months ago

May well be bs but for different reasons.

Algae is an alternative fuel and has no link to fossil fuels. This takes an existing but expired fuel and extracts usable material, or so it says. In any case they aren't comparable.

[-] AOCapitulator@hexbear.net 2 points 2 months ago

Comparable in that it's presented as a solution to a problem when it's really not a solution at all, I meant

[-] lazynooblet@lazysoci.al 2 points 2 months ago

Ah okay 👍

[-] Redex68@lemmy.world 3 points 2 months ago

If this truly works, that would be fantastic news, but getting clean lithium out of a used battery that has been degraded and the lithium has become contaminated sounds extremely complicated, so I'm still a bit skepical on the feasibility of it.

[-] ilinamorato@lemmy.world 1 points 2 months ago

The process honestly sounds to me a little bit like decaffeination, which also feels like witchcraft to me. So it might work!

[-] HaustierElch@lemmy.ml 2 points 2 months ago

Not related directly to the article, which I found interesting, but I'd never heard of this website before and there seems to be many great articles on it! Another website to follow for me!

[-] Kertyna@feddit.nl 2 points 2 months ago

"A new technique could now make that process economically viable."

That reminds me of that Tumblr post about Aperture Science celebrating pride month.

"Congratulations Earth, your survival just became Economically Viable™ "

[-] jj4211@lemmy.world 1 points 2 months ago

Question is does that $12.70/kg figure include sourcing the spent batteries?

Great news, but would be curious to know if the figures are apples to apples, or if one of them excludes cost of the raw material.

[-] betanumerus@lemmy.ca 1 points 2 months ago

If they're hiding something and aren't comparing apples to apples, it wouldn't be a scientific comparison and they wouldn't be scientists. Let us know what you find.

[-] HubertManne@piefed.social 0 points 2 months ago

illini pride:

Enter the new technique from scientists at the University of Illinois Urbana-Champaign. There, a team led by chemical and biomolecular engineering professor Xiao Su, has been spending time disassembling batteries and then submerging them in an organic solvent. This leads to a brine that contains lithium as well as other metals present in the batteries.

To harvest the lithium, the team developed a special electrode created from a copolymer consisting of molecules that attach to lithium and those that respond to an electrical current. When placed inside the brine and electrified, it sucked only lithium from the solution like a sponge, leaving other metals behind.

this post was submitted on 30 Nov 2025
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