With its bold curves, the Note 7 became the smartphone market slimmest 5.7 inches. But that boldness could also be the detonator of the problems that sentenced their fate, according to Gizmodo.
We know from the leaked documents during the first withdrawal of Note 7 batteries were provided by Samsung SDI went really larger than allowing compartment.
This caused the phone exert undue pressure on them and, in the worst case, the anode and cathode is touched, be short-circuited and cause a thermal runaway (which informally called "explosion").