18650 lithium battery will explode?

18650 Lithium battery under normal circumstances will not explode, because the 18650 is a cylinder, the battery has a release valve, if the battery short-circuit inside the gas expansion, release valve will automatically start the battery inside the expansion of gas and liquid released, so Lithium batteries do not explode. If the lithium battery does not release the valve, the gas explosion in the short-circuit explosion is not inferior to a long 6-7 cm white cannon power.