As indicated by an unpublished preparatory report sent to Korea’s Agency for Technology and Standards (got by Bloomberg), Samsung had an assembling fault that put weight on plates contained inside battery cells, which brought negative and positive posts into contact.
“The defect was revealed when several contributing factors happened simultaneously, which included sub-optimized assembly process that created variations of tension and exposed electrodes due to insufficient insulation tape,” a Samsung representative told agency.
Alternately, the thin plastic layer that isolates the positive and negative sides of the battery got punctured, turned into the most short course for power to destroy over the battery and turned into a tremendous fire hazard.
MIT materials science Professor Don clarifies that today’s mobile phone batteries are made by truly squeezing together a pile of battery parts – and that battery organizations are under pressure to squeeze it as much as possible.
Today’s PDA batteries by and large charge quicker when they’re initially connected to the electricity, not toward the end when they’re stream charging the last few percent to achieve their most limit.
These Note 7 telephones didn’t explode immediately. In for all intents and purposes each reported occurrence of a Note 7 finding fire or exploding, it happened after the telephone was connected to and left charging, once in a while overnight.
At that point, Samsung arrangements to make these telephones more secure by issuing a firmware overhaul that keeps the Galaxy Note 7 from charging to more than 60 percent of its full limit. Well… there is still a question that if Note 7 is left for charging overnight, how will this charging limit protects the over heating which is mainly the reason of explosion?