Youtube: "What's inside Eneloop and LIDL NiMh cells (fire, apparently)"

Very cool video, (thanks Youtube algorithm!)

Big Clive. :+1:

Very interesting video.

I don't watch streaming videos very often, but that one was pretty entertaining.

It even has a good jump scare in it.

Don't try this at home, kids!


I also appreciated the English subtitles even though the audio was in English.

That's a nice touch.

A bit slow video but the combustion bit was fun. And Clive’s accent makes all his video’s intrinsically entertaining :slight_smile:

I know there will now be people taking LIDL NiMH cells apart just to see the flames!

Thanks SB, very good stuff there… :wink:

IMHO that big guy should pick on a battery his own size.

Very entertaining video.

Always interesting to see what’s inside a cell.
It’s actually very simple, kinda surprising, but still complicated. (The chemical stuff)

“Where is my explosion-containg pie dish?”

“Not something you want to toss in your bin, is that?”

“Yes, unexpected results ….”

Bursts into flame at 16:25

“don’t open NiMH cells, some of them — not all of them — can burst into flame”

So what’s the bottom line — stay with Eneloop and avoid the LIDL and is it ALDA NiMH cells, to avoid fire?

More BigClive:

at 12:31 “the battery pack’s swelling … and I can smell that characteristic smell …”

I knew it was him, just from the title. :laughing:

Thanks for sharing this, sb56637. Very interesting.

Here’s another neat video. A flashlight shorting mystery with what looks like a variant of a common headlamp.

Scary to discover yet another self-igniting product is in use in the battery universe.
I wonder if the recyclers know about this yet.

Should rename them to LIDLfire cells…

So what happens if you drop it and it barely cracks the case open to the air somewhere.
It catches fire?

PS, thanks to SB for finding the video and starting the thread here.

I remain just appalled at the introduction of yet another self-igniting battery product to the list of risky products on offer.

And I’d just bet they’ll corrode in use like alkaleaks, but being pyrophoric, unsafely — rather than be safe to keep around over a long term like NiMH cells.

And is there a warning on them for the people working in the battery recycling stream?

PS, a little googling turns up suggestions that all LiMH cells may be self-igniting if the case is opened, something used for the negative anode can catch fire.
This is just third hand opinion.

This reminds me of high school chemistry class. Our teacher had some (more or less pure) potassium and sodium immersed in jars of liquid. Upon removing a small amount, exposure to air would cause spontaneous combustion. I’m trying to recall…. I think the potassium was stored in water, and the sodium had to be in an oil or something. Hard to remember exact details after 45 years.

That teacher was pretty cool. He also kept some other minerals around, like copper and lithium, and he’d sprinkle bits into a bunsen burner flame to show us the pretty colors they made when they burned. He also taught us how awesome carbon tetrachloride was for cleaning dirty potentiometers and stuff… good luck finding carbon tet nowadays, though, it’s not considered safe healthwise.

I work in secondary school as a teaching assitant, and most of that is still done. I do not keep a stash of potassium (too unpredictable) anymore, and no tetra, but we do sodium in water, and flame colours (strontium is the best: bright red), and many many other experiments.

Most likely both sodium and potassium were stored in kerosene back then. Both react violently with water.

If anybody else disassembles a cell and wonders what’s inside it — I asked one of the professionals in the field.
Here’s his response (which I also cc’d to BigClive)

We have an x-ray fluorescence spectrometer that could identify it if we had a sample. As speculation, the hydrogen storage metal can contain rare earths. Mischmetal is typically used as a component in the alloy, and particle diameters are 10-20 microns, so that could be the culprit.

best regards

Mark W. Lund, PhD Battery Chargers
CEO Bulk Cells and Custom Battery Packs
PowerStream Technology Custom Power Supplies
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