Samsung’s most promising device Samsung Galaxy Nate 7 was the living nightmare for the company. This device comes with the most advanced features but unfortunately these advanced features turned into worst features of the device. Samsung buys back all Samsung Galaxy Nate 7 as it is. The worst part of this event is, the reason behind the explosion is not known till now. Engineers of the Samsung even after several post types of research not able to find the flaw in the device. However, folks at Instrumental did their own R&D alongside and have come up with a potential theory explaining these explosions.
According to a report by Instrumental, “the aggressive design strategy of cramming the biggest possible battery into the smallest possible frame is what caused the Galaxy Note 7 to explode. The large battery inside a 5.7-inch device with all the other features, including a separate slot for the S Pen to fit in, has reportedly been the cause of these explosions. To fit the large battery, Samsung left virtually no space (less than 0.1mm in some places) around the circumference, when the company ideally should have left a 10 percent gap for the battery to expand over time. The compression of the battery thanks to the stress of being placed in pockets, alongside the natural swelling, is reportedly the driving factor causing many Samsung Galaxy Note 7 units to catch fire.”
The Note 7's lithium-polymer battery is a flattened "jelly-roll" consisting of a positive layer made of lithium cobalt oxide, a negative layer made of graphite, and two electrolyte-soaked separator layers made of polymer. The separator layers allow ions (and energy) to flow between the positive and negative layers, without allowing those layers to touch. If the positive and negative layers ever do touch, the energy flowing goes directly into the electrolyte, heating it, which causes more energy to flow and more heat - it typically results in an explosion. Compressing the battery puts pressure on those critical polymer separator layers that keep the battery safe.
Samsung stated that these separator layers may have been thin to start with due to aggressive manufacturing parameters. Add some pressure due to normal mechanical swell from the battery or accumulated stress through the back cover (e.g. from being sat on in a back pocket), and that pressure could be enough to squeeze the thin polymer separator to a point where the positive and negative layers can touch, causing the battery to explode.
If this is actually the real reason, then the company did its worst mistake ever in respect of brand value and monetary losses. Hopefully, company will not repeat the same mistake again in its upcoming models.
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