Samsung has held a press conference to talk about the doomed Samsung Galaxy Note 7. Dong-jin Koh, the Samsung's mobile business chief spearheaded the event.
Samsung has shown the findings of the tests they conducted. They have revealed the causes of the explosions of the Samsung Galaxy Note 7.
The Wall Street Journal got the first hand to obtain the report. The Korean giant said that the disproportionately large size of the battery, compared to its casing, is one of the culprits, The Wall Street Journal reported.
This just confirms the previous report that Samsung had put in, packed so much into device's housing sans allowing the battery to expand. The Samsung Galaxy Note 7 which has irregularly sized batteries explodes when they were put into too much strain.
They themselves, the Samsung's own battery division, the Samsung SDI manufactured their own first set of batteries and it is not outsourced. So it should be a surprise that they have not calculated the dimensions.
Samsung has also cited that the assembly process and the manufacturing defects were to blame for the battery explosions, CNBC reported. The Samsung Galaxy Note 7 is packed with lithium-ion batteries.
The lithium-ion batteries are arranged in three layers. One is the positive layer, the negative layer, and the third layer that acts as a separator between the positive and negative layers. When these two layers touch each other, explosions occur as a result of the short circuit.
Koh cited that the first set of batteries that came along with the original device have a problem with its upper right hand corner of the battery cell. Their analysis deduced that the main cause for the explosion is the deflections in the negative electrodes. To add to that, Koh said that the incorrect positioning of the electrode tip has also brought the device to explode.
The second set of batteries was outsourced from the other different manufacturer. Here, Samsung has discovered a melted copper on the negative electrode area. Koh added that there were also welding issues that caused the negative and positive ions to come in contact, resulting to short circuits, then leading to explosions.
Samsung is expected to have about $5 billion in operating loss. It covers earnings for the last two quarters of 2016 and the first two quarters of 2017.
Watch the Samsung investigation report below:
