this post was submitted on 24 Apr 2025
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(page 2) 50 comments
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[–] [email protected] 158 points 1 week ago* (last edited 1 week ago) (4 children)

Cue dumbasses tossing their iphones in the toaster oven in 3... 2...

[–] [email protected] 1 points 6 days ago

putting it over the stove.

[–] [email protected] 64 points 1 week ago (1 children)

Microwaving the iphone was close to the right answer.

[–] [email protected] 8 points 1 week ago

What, you didn't know you had to crank the power to high before microwaving your phone? Rookie mistake

[–] southsamurai 23 points 1 week ago (1 children)

I love the typo because it covers so many things at once

Queue as in they're lining up to do it; cue, as in that's their cue to be stupid; and que (spanish for what) as in what the fuck are they thinking?

[–] [email protected] 5 points 6 days ago* (last edited 6 days ago) (1 children)

I was gonna say there's no typo but the comment has been edited. What was it originally? Que?

[–] southsamurai 3 points 6 days ago
[–] [email protected] 8 points 1 week ago

¿Que dumbasses?

[–] [email protected] 94 points 1 week ago* (last edited 1 week ago) (1 children)

Sure. But we need to see pics, or it didn't happen.

The abstract doesn't mention them re-gaining their old capacity. It only says they shrink. And something about voltage. So I have my doubts. I mean it's nice if my spicy pillow shrinks a bit. But what does that help if it continues to stay nearly dead? And an application in products would be hard to accomplish. At that temperature, all the plastic etc is going to melt. Maybe the solder as well.

[–] Imgonnatrythis 89 points 1 week ago (3 children)

Yes. If you aren't reading any battery tech article with a huge amount of skepticism you are doing it wrong. More than any other tech sector I can think of, battery research is just absolutely plagued with low quality research that consistently gets picked up by media outlets.

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[–] [email protected] 81 points 1 week ago* (last edited 1 week ago) (2 children)

I hope this article is well peer-reviewed. Otherwise this reads as if some LLM came up with the idea

[–] [email protected] 25 points 1 week ago (1 children)

The “peer” that reviewed it was another LLM.

[–] [email protected] 28 points 1 week ago (2 children)

Well if it was a human it wouldn't be a peer, would it

[–] [email protected] 4 points 6 days ago

Connection reset by peer.

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[–] [email protected] 64 points 1 week ago (3 children)

Is this before or after they reach the spicy pillow stage?

[–] [email protected] 25 points 1 week ago

The trick is to let them apply this heat themselves.

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[–] [email protected] 56 points 1 week ago (1 children)

brb, putting e-bike battery in oven

[–] [email protected] 31 points 1 week ago (2 children)

One simple trick to make your ebike fly.

[–] [email protected] 3 points 6 days ago

turn you into ghost rider.

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[–] [email protected] 40 points 1 week ago

Sounds like "microwave to charge" for the modern era.

[–] [email protected] 38 points 1 week ago

brb chucking my batteries in the oven

it's a cheap and easy thrill

[–] [email protected] 37 points 1 week ago* (last edited 1 week ago) (4 children)

Sounds like a horrible idea if not carefully controlled. Perhaps up to 80 degrees in an oil bath could redissolve some of the electrolytes. I guess it could work. Anything above 100 is asking for trouble.

[–] [email protected] 19 points 1 week ago

So you're saying I SHOULDN'T preheat my toaster oven to 425F???

UH-OH!!!

brb. Gotta put out some fires.

[–] [email protected] 14 points 1 week ago (1 children)

How is the boiling point of water relevant to something that's made of plastic and metal?

[–] [email protected] 20 points 1 week ago* (last edited 6 days ago) (2 children)

Well the electrolyte solution is water based so exceeding the boiling point will cause pressure buildup inside.

Edit: hmm seems I might be generalizing too much. Not all batteries use water based solutions. My point is that you should avoid a pressure buildup inside the battery due to reaching the solvents' boiling point.

[–] [email protected] 19 points 1 week ago

wha wha what

no, it's an organic solvent like ethylene carbonate/propylene carbonate + some other stuff, which have a boiling point of 230+°C ( 446°F)

heating up batteries is (mostly) fine (under controlled scenarios with known good batteries, spicy pillows can always happen with bad batches) as long as the plastic holding them together doesn't melt

you physically CANNOT make a lithium ion battery with water because lithium reacts with water

from the wikipedia page

Lithium reacts vigorously with water to form lithium hydroxide (LiOH) and hydrogen gas. Thus, a non-aqueous electrolyte is typically used, and a sealed container rigidly excludes moisture from the battery pack. The non-aqueous electrolyte is typically a mixture of organic carbonates such as ethylene carbonate and propylene carbonate containing complexes of lithium ions.[45] Ethylene carbonate is essential for making solid electrolyte interphase on the carbon anode,[46] but since it is solid at room temperature, a liquid solvent (such as propylene carbonate or diethyl carbonate) is added.

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[–] [email protected] 32 points 1 week ago (6 children)

In the good ol' days when I ran out of battery and every charger had a different stupid little connector, I often put my phone on the window still or heater to get a little bit of juice to do what I needed to do.

I guess I am a scientist.

[–] [email protected] 21 points 1 week ago

Wow, this brought back memories of me rubbing my hands against my old Nokia battery in middle school to heat it up and get a couple extra %.

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[–] [email protected] 21 points 1 week ago (1 children)

How does heat mitigate the dendrites? Also doesn't extreme heat damage the batteries? They barely hold up under high temperatures as-is.

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[–] [email protected] 7 points 1 week ago (3 children)

Reminds me of the old days of putting my LG G4 in the freezer

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