Samsung finally explains how the batteries of its smartphones caught fire
Samsung held a press conference last night to unveil the official causes of malfunctions of the Galaxy Note 7 last year.
Back in the middle of 2016, at the end of August Samsung launched its Galaxy Note 7. This high-end smartphone is a very beautiful device. It is praised by the press. With nearly 2.5 million devices pre-ordered and ready to be launched in the world, one can easily talk about the successful launch for Samsung.
A few days later, the first cases of explosion and conflagration of the apparatus begin to appear on the canvas. Samsung reacts (relatively) quickly and recalls all of its devices. And announced that he will change the battery and return new copies, which are safe. These new devices also have problems on the battery. Samsung then decides to put an end to the fiasco and definitively recalls all its Note 7.
Samsung early today explained in a press conference that it carried out the investigation for several weeks to discover that the culprits were none other than the batteries of the Galaxy Note 7. To do this, some 700 engineers and two independent experts Observed 200,000 device and 30,000 batteries for several months.
On both Galaxy Note 7 series, the cause of the flaring or overheating of the Galaxy Note 7 was the same: parts of the batteries that had to remain separate came into contact and caused short circuits. It was now necessary to know how.
On the first series of Galaxy Note 7, it seems that the battery pack, not strong enough, associated with a Galaxy Note 7 chassis too narrow, caused a fold of the upper right corner of the battery and brought the Negative and positive electrodes of the accumulator. On the other hand, it seems that the design of the battery itself is involved, with a portion of the negative electrode that was located in a curved portion of the battery.
On the second series of Galaxy Note 7, those supposed to be safe with a battery from another manufacturer, the defect comes from a solder heap in the top left of the battery that would have created a bump in the battery. And pierced the insulating layer separating the anode from the cathode. This created a short circuit.
Samsung not only disclosed the causes of the explosions of the Galaxy Note 7. It also announced that it would now adopt an eight-step safety procedure on all batteries of its mobile devices. X-ray testing, durability testing, visual inspection, load and discharge testing, etc..., Samsung wants to reassure the consumer and show that he will not make the same mistake again.
Samsung also assured it would not make the same mistakes for the Galaxy S8. It is assumed that the "aggressive" design of the Galaxy Note 7 should not be re-used for the next high-end smartphones of the brand. The best proof is the delay of the announcement of the future Galaxy S8.