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Re:My Bose QC-35 II headphones burst into flames and left me... by baybal2 on Saturday December 18, 2021 @02:24AM (#29602513)
No. There is very little lithium in the lithium battery.

The amount of chemical energy released by burning of the electrolyte, and graphite is many times higher than battery's stored electric energy.

Most of what burns in a lithium cell is electrolyte, and later graphite.

Re:My Bose QC-35 II headphones burst into flames and left me... by dataflow on Saturday December 18, 2021 @03:05AM (#29602721)
> very little lithium in the lithium battery

Do you know what the percentage is? Some Googling suggests around 4% by weight or so?

Re:My Bose QC-35 II headphones burst into flames and left me... by baybal2 on Saturday December 18, 2021 @03:13AM (#29602762)
Around few percents, yes, and already oxidised.