the end of The summer of 2016 would be placid for Samsung. He had worked hard during the past months to have to point the new star with the face to the iPhone 7, the Galaxy Note 7. It had even jumped directly to number 6, and with it, the logical order, to compare to the S7 and the above-mentioned iPhone 7. The criticism of the first moments he was almost unbeatable: the strategy was working. But the alerts jumped when too many users reported that Galaxy Note 7 exploded suddenly, and had to act through a recall. Or what is the same, one of the biggest nightmares that can be faced by a manufacturer. When the explosions ceased not with the units of the second round, confirmed the suspension of sales of the termina l. Now yes, the worst nightmare that I had faced by a manufacturer.
Since then, a crisis of reputation remarkable and a presumably high number of heads rolling on the asphalt of south korea, Samsung has been researching what is wrong at a technical level beyond that of the consequent accountability. In a first moment was the theory of the curvature of the device, where a contact fatal between the anode and cathode, which resulted in an increase of the temperature which in turn ended up causing the dreaded explosion. Then he spoke of the possibility that the defect is in the production itself, but the change of the plant of ditto, from SDI (subsidiary of Samsung) to ATL for the second batch terminal did not fix the problem, so that ruled out that theory.
DJ Koh during the press conference.
Today, during the early morning hours (european time) from 22 to 23 January, Samsung has announced in a press conference, and from the hand of DJ Koh, head of the mobile division of the company, the results of the research conducted during the past few months. In the conference we have been able to see the pictures of the process, and it has been explained that it has been made next to UL, Exponent, and TÜV Rheinland, independent companies. More than 700 engineers from the south Korean company have spent the last several months to contribute to this research, all to answer one question: what was it that happened?
This process has included tests of durability, tests of uploads and downloads continuing of terminals, the use of X-rays with the batteries, visual inspection, disassembled, simulations uses very demanding of the terminal, tests, ∆OCV (verification of results with changes in the voltage), and test TVOC (to check for volatile organic compounds). 200,000 units of the Note 7 and 30,000 batteries loose were used during these tests.
The explanation of DJ Koh has declined to talk about defective batteries. Two different parties, with origin in two plants manufacturing different. The first shipment was affected by “excessive pressure” on the part of the housing, while the second had the problem in the process of ultrasonic welding, which turned out to be defective. In this last batch, manufactured in ATL, has nuanced the expedited process, which had to cope with suddenly to a high number of terminals, in around ten million.
taking Advantage of some form the hard scenario of the last few months, Samsung has also commented on the new security measures around the development of batteries that have been put in place following the case of the Note 7. It has also created an Advisory Group of Batteries, a commission composed of independent experts to work together in the face of the future developments of batteries, formed by Clare Grey (Doctor of Chemistry at Cambridge), Gerbrand Assign (Doctor of Engineering and Materials Science, Berkeley), Yi Cuy (Doctor of Engineering and Materials Science at Stanford) and Toru Amazutsumi, a Doctor and CEO of Amaz Techno-consultant.
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