TECHNOLOGY The us authorities have ordered a recall of the official one million smartphones because of the risk of explosion of the battery…
The nightmare of Samsung continues. While it ordered a recall world of all the Galaxy Note 7 sold since 19 August, that is 2.5 million devices, the South Korean was rapped on the knuckles by the us agency for consumer protection. Face at the risk of overheating and explosion of the batteries, the CPSC has announced, Thursday, a reminder of the official one million Galaxy Note 7 sold in North America. This will force Samsung, which tergiversait on the logistics, to hurry and to offer a refund or exchange within the shortest possible time.
While the constructor has not really helped his case with statements evasive on the real risks, the u.s. agency put the things clear : “consumers should immediately stop using the Galaxy Note 7 recalled and off. “
92 incidents
According to the agency, there were 92 incidents of overheating, 26 cases of burns and 55 property damage reported, such as fires in cars and a garage. This represents approximately 0.01 % of the smartphones sold. This is in line with the figure provided by Samsung to the south Korean agency Yonhap, with faulty batteries that seem to overheat, especially when they are loaded at 100% for a long period of time.
at the present time, we do not know if the problem is likely to worsen with time and the degradation of the batteries. Ignore the reminder, as some will, without a doubt, is so dangerous, not only for oneself but also for others. Many airlines require owners to Note 7 to turn off their phone in the cabin and protect the power button to avoid an incident potentially dramatic.
Contact between the two electrodes
According to an internal report, preliminary obtained by Bloomberg, the problem would come from ” a manufacturing defect minor “, with too much pressure applied on the plates inside the battery cell, which causes a contact between the electrodes positive and negative, which produces heat.
lithium-ion batteries found in smartphones, hoverboards, or the electric cars have one major flaw : they contain flammable chemicals. In the event of overheating, the oxygen is released from the inside. As explained by the expert battery of MIT’s Donald Sadoway to Time, + heat + oxygen + fuel = bomb.
Portable Sony, smartphone, Nokia, iPhone… The explosive is not new. But while the manufacturers are trying to increase the capacity of the batteries in spaces which are always more tight (3.500 mAh for the Note 7 3.020 mAh in Note 6, for a phone of less than 8mm in thickness), the slightest mistake is paid cash. For Samsung, this is not so much the cost of the recall, hundreds of millions of dollars or even more, that poses a problem. The real risk, the damage to the brand image and impact sales in the future. Especially, at the exact moment when the iPhone 7 takes over the market…
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