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Report: Samsung Galaxy Note 7’s aggressive internal design led to explosions

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Last updated: December 5th, 2016 at 12:09 UTC+01:00

Samsung promised that it would announce the results of its investigation regarding battery problems in the Galaxy Note 7 later this month. However, Instrumental, a company that makes engineering tools, took upon itself to find the cause of fire and explosions in the Galaxy Note 7. According to the Instrumental’s examination of the Galaxy Note 7, the primary cause of the problem wasn’t with the battery itself, but the aggressive internal design of the Galaxy Note 7. The firm found out that the phablet’s design could compress the battery even during normal operation.

The Note 7′s battery is a flattened “jelly-roll” that consists of a positive layer made of lithium cobalt oxide, a negative layer made of graphite, and two electrolyte-soaked separator layers made of polymer. If the positive and negative layers come in contact with each other, it typically results in an explosion (or fire). Samsung said that these layers could have been too thin due to aggressive manufacturing parameters. It looks like Samsung was trying to fit in a large capacity battery into a thin design, leaving tiny room inside the battery casing, which led to explosions.

This could be due to Samsung’s effort to make sure that the Galaxy Note 7′s battery life was longer than that of the Galaxy Note 5 without making it physically larger. With this intent in the mind, Samsung could’ve pushed the boundaries too much for it to be safe for consumer in the end. The company had to run full-page ads to apologize the consumers for the Galaxy Note 7.

While we were doing the teardown, Sam wondered, “Samsung engineers are smart.  Why would they design it like this?”  The answer isn’t a mystery: innovation means pushing the boundaries. – Instrumental

Samsung Galaxy Note 7 Internal Battery Design

 

Samsung Galaxy Note 7 Design Inspection By Isntrumental

Via Source Phone Galaxy Note 7Galaxy Note 7 recall
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