this post was submitted on 27 Dec 2023
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Li-ion isn't Lithium. Ions are distinctly different from the raw metal. If this were raw Lithium, of course water wouldn't work. But this is Li-ion, the chemistry is rather different.
If you passed 9th grade science, you'd remember that Li-ion is Li+, suggesting a dissolved salt in the chemistry. And as you know, Na+ (Sodium+ ion) has completely different chemical reactions than Na (Sodium, aka explodes in water). Na+ in particular, dissolves in water safely. Remember?
Anyway, the Ions are very different from the raw element. As such, its widely accepted that Water is effective, but just barely so. You need lots-and-lots of water to extinguish a Li-ion fire, and the water needs to be applied for hours.