[citation][nom]jellico[/nom]We've been making gas tanks a lot longer than we've been making high-capacity lithium-ion batteries. Basically, nothing short of a leaking tank and a fire or spark will ignite the fuel. Conversely, LI batteries are notorious for becoming unstable after even minor damage. And, unfortunately, you will have no indication that your battery has become dangerous until it starts heating up shortly before exploding. Just saying.[/citation]
Yes, and cars have been blowing up ever since the gas tank has been invented. A leaking tank and a spark are easy to come by in case of a crash and a bit of misfortune. Is not like every crash will result in a fire, but same goes for the Li-Ion batteries (not every time they heated up and caught fire after the crash tests; if every test was followed by an explosion, they would have abandoned the idea long ago). In case of a gas tank, you also have no indication until you smell gasoline, and then a fireball is the norm. Just saying.