And this is just one of the areas where your profound ignorance lets you down. The reason table salt is inert and non flammable, is because it is a SALT of sodium, (sodium chloride in fact). The sodium in table salt is not there in its metallic form. (It has nothing to do with melting point, it's because it's really hard to break the chemical bonds between a sodium and a chlorine atom).
The same can be true of some lithium batteries. You've picked a video there, of one particular type of "lithium" battery - lithium metal batteries, where the anode is (literally) sheet of metallic lithium foil. However, there are other types of "lithium" battery (lithium ion, for example, or lithium iron phosphate) where, (like table salt), the lithium is NOT in its metallic form. Of course, in your ignorance, you're running round going "Ooooo lithium" Scary! wooo wooo"! As far as you're concerned, anything with the word "lithium" in it, is scary. And like most empty vessels, you do make a great deal of sound on the subject...
So, just like sodium is an extremely reactive metal, but not everything with sodium in it, is likely to explode on contact with water, so lithium (and indeed all those metals down the left hand side of the periodic table), are highly reactive metals, but not everything that contains them, contains them in their raw, metallic form.
For pity's sake, educate yourself before gobbing-off and making a fool of yourself!
