Good lithium batteries have 2 things going for them:
The are stored and charged where the have room to expand. That's why the Samsung Note 7 had an issue. No room to expand, so they distorted... and shorted out internally... thus blew abd caught fire.
They should also have a built in current limiter so they don't overheat.
There's other good ideas such as only use the manufacturer's charger and so forth.
Lithium ion (or otherwise) batteries are perfectly safe as long as they are from a reputable manufacturer and properly used.
