If Samsung Galaxy Note 7 hadn’t exploded, it would have been the best smartphone of all time. But something, hitherto unknown affected the phone and make it keep on exploding.
Until a few days ago, we didn’t know the exact reason behind this. Now Samsung has broken their silence and talked about why their most anticipated flagship went on exploding.
Here in this article, we are going to closely examine the same.
Why Samsung Galaxy Note 7 Exploded?
We all know the Note 7 is dead. But some loyal Samsung customers wanted to know why it happened, why the smartphone exploded. So, the company went on doing some internal assessments.
They hired different investigation firms to conduct their own independent research to find the cause behind the issue. During the investigation, they even made replicas of Note 7 and duplicated the explosion.
And after months’ of research, the real reason got revealed yesterday at a press meet in Seoul.
As you might have thought, the batteries caused the explosion. The manufacturing and design flaws of Note 7 batteries are what triggered the notorious Note 7 blast. In return, the company faced a loss of $5.3 billion.
Once the research got over, Samsung blamed two of their battery suppliers. Even if the company didn’t officially spell their names, the Wall Street Journal did (Samsung SDI and ATL).
Note 7 contained two different types of batteries made by those companies. Let’s call them Battery A and Battery B.
The issue made by A kind came out first. So, Samsung thought the issue is only with that type of batteries. That’s why they recalled units and replaced with devices of B kind batteries. Guess what? Those units also have a battery-related, though different, issue.
Let’s get to the geeky part. In a Li-ion battery, there are positive and negative electrodes. In Battery A, the tip of the negative electrodes were bent and as a result, it gets placed in the wrong position.
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In Battery B, the welding burrs caused it to penetrate the insulation tape and touch the positive tab.
The first one is a design flaw whereas the issue with Battery B is a manufacturing defect. If the suppliers of Battery A had given enough room in the pouch, the electrodes could have remained straight without bending. On the other hand, the weird welding process in the manufacturing of Battery B made the negative electrode contact positive tab.
Though Samsung blamed their suppliers, they confessed that it is obviously their fault as Note 7 is their product and they decide the specs.
As we are waiting for the next flagship (S8), let’s hope for the best.
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