If the adhesive strips break, take your time removing the battery. Yes the battery will turn into a big fire ball if it is bent too much or punctured with a screwdriver while trying to pry it out. Not sure which one was the culprit. It gives a new meaning to the term “Burn Phone”. Luckily, only the volume control ribbon cable needed to be replaced. Even after the battery caught fire and was removed, the adhesive strips remained on the case and I had to scrape them off.  I also had to remove some of the melted plastic so the new battery would fit in properly.

So, as you are trying to blow out your flaming battery like a giant birthday candle, remember to blow the flames away from the logic board and other sensitive components.