- Oct 23, 2018
So I've abused a lot of cells and have gotten close, but have never actually induced thermal runaway (thankfully). Iaccidentally shorted a high dischargecell that reached 235*F/112*C, but CID protected that cell. And on laptop cells that I've shorted on purpose, PTC has protectedthe cell from thermal runaway. Every thermal runaway video I've seen has either been a lithium polymer battery (no protection, Galaxy Note 7), mutilation (axing an 18650 in half), or externally igniting an 18650 with a propane torch or a heat gun (hi Daromer). I haven't tried overcharging a cell yet (think: hoverboards), and that's next on my list, but I'm just wondering if anyone here has accidentally or on purpose successfully initiated thermal runaway on an 18650 and how you did it?Unlike most of you, I'm dealing with generic cells and trying to do it in a safe way, so I'm doing a lot of independent safety testing, and besides shorting cells, I'm trying to figure out other ways to test my datasheetless cells for worst-case scenarios.