Li-Ion fire safety, inert atmosphere (discuss.tchncs.de)

submitted 8 months ago* (last edited 8 months ago) by Rolive@discuss.tchncs.de to c/diy@slrpnk.net

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This is an idea that entered my mind. As far as I understood lithium ion batteries still need oxygen from the air to burn.

They don't provide their own oxidizer IIRC but they do reignite when left to dry because they rapidly build up heat again. Please correct me if I'm wrong.

Edit: I was wrong: https://www.sciencedirect.com/science/article/pii/S2352152X24008739

The cathode breaks down into oxygen among other things.

Would it make sense to have a lithium ion battery inside an airtight enclosure and fill it up with nitrogen? This way the only source of oxygen is from the decomposing cathode but that should react away quickly. The fire will be much less intense than in regular air. Assuming the enclosure holds.

Is this a silly idea? Is it even worth doing?

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[-] TheJesusaurus@sh.itjust.works 1 points 6 months ago

If it were the case that Li-ion fires could be extinguished by depriving them of oxygen. They wouldn't really be this much of a problem in the first place

this post was submitted on 24 Nov 2025

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