I remember a few years back word going around the internet that Apple had released an iOS update that allowed the latest model of iPhone to be recharged in a microwave…
Ooh, ooh. 12ga shotgun shell (~18mm), cut down to remove the shot but leave the wadding, drop the 18650 in there musket-style, and blast it into a brick wall.
18650… that’s a little loose for a 12 gauge and a bit tight for a 16 gauge… but I bet it would fit nicely in a in a high-brass 3” 12g birdshot shot cup.
Just Saying……
Or, maybe you have a pair of large jaw vice grips or channel locks that need heat treated?
Or it’s possible the sidewalls of the battery will buckle due to the high acceleration involved, jamming the battery inside the barrel, likely damaging the barrel and potentially even creating a risk of overpressure.
I wouldn’t recommend it without taking significant precautions.
@JoshK, since I’m the kind of person that likes to be friendly to my surroundings and the general environment, here’s what I would do:
1. Discharge the cell to 0V.
2. Go outside with a bucket of water.
3. Wear two pairs of medical gloves, and a full laboratory suit.
4. Open the 18650 by removing the top cap with a dremel.
5. Proceed with the disassembly of the cell, by first putting the steel casing in the water to clean it, and then doing the rest WITH GLOVES ON. DO NOT TOUCH YOUR FACE IN, and wear a respirator if possible.