Why the Galaxy Note 7 kept exploding – Report

[Kevin Lancaster]

Why the Galaxy Note 7 kept exploding – Report

Engineers at technology company Instrumental have stripped down a Samsung Galaxy Note 7, revealing why the device was prone to catching fire.

 

[Randy_The_Squirrel]

“Any pressure placed on the battery in its confined space may have squeezed together positive and negative layers inside the cell, which were thinner than usual in the Note 7’s battery already.”

And what about the charging circuitry? Anyone look at that yet?

 

[RaptorSA]

So basically this ludicrous obession with thinness caused this.
Let that be a lession.

 

[Icemanbrfc]

So basically this ludicrous obession with thinness caused this.
Let that be a lession.

pretty much yes, especially with touch devices. Pressure on a battery is never a good thing, because it causes friction. However, there is more to this than meets the eye, and its not just about pressure on the battery. The design inside the Note 7 imo was flawed, and they dont explain anything with regards to the internals ie the circuitry board etc

 

[SykomantiS]

pretty much yes, especially with touch devices. Pressure on a battery is never a good thing, because it causes friction. However, there is more to this than meets the eye, and its not just about pressure on the battery. The design inside the Note 7 imo was flawed, and they dont explain anything with regards to the internals ie the circuitry board etc

I have a Z2 Tablet LTE- it measures in at 6.4mm thickness, and no such issues exist as far as I'm aware. I'm blaming poor design and engineering.

 

[Icemanbrfc]

I have a Z2 Tablet LTE- it measures in at 6.4mm thickness, and no such issues exist as far as I'm aware. I'm blaming poor design and engineering.

thats basically what i said ie there is more to this. Pressure on the battery would have to be pretty heavy, and that would cause the screen to disintegrate to apply such extreme force to cause the battery to explode.

 

[SykomantiS]

Yes, I was agreeing with you.

 

[Icemanbrfc]

Yes, I was agreeing with you.

yeh i know. Back in the day, on my Nokia 3310, i had no such problems

 

[RaptorSA]

I have a Z2 Tablet LTE- it measures in at 6.4mm thickness, and no such issues exist as far as I'm aware. I'm blaming poor design and engineering.

Question, 6.4mm is insanely thin, would you prefer a thicker device, say 9mm or whatever and +- twice the battey life?

 

[Icemanbrfc]

Question, 6.4mm is insanely thin, would you prefer a thicker device, say 9mm or whatever and +- twice the battey life?

i know not aimed at me, but i would take that ie better battery life over form factor and thinness.

 

[ingeon]

For more battery standby time i would gladly take a 10mm thick phone. Call it a Galaxy 7 F.A.T.

 

[ponder]

And on a related note after the phone and washing machine explosions Samsung has decided to rename the company to ACME Corporation.

 

[kianm]

Short circuit kind of?

 

[Messugga]

Short circuit kind of?

Yip. Internal short-circuit on the battery. This is very bad for lithium, as shorts generate heat due to the high current passing through the medium, and lithium doesn't like heat.

 

[SykomantiS]

Question, 6.4mm is insanely thin, would you prefer a thicker device, say 9mm or whatever and +- twice the battey life?

As it stands, I'm more than happy with the battery life- the incredible thinness (and therefore minimal weight) is a big plus for me- I think the tablet actually weights less than its cover, although I've not actually checked this. I have a magnetic charging dock for the tablet so I've no issues with it really. Moderate usage still sees about 2-3 days worth of life anyway, which is more than enough for me.

 

[Dave]

Samsung has finally explained the reason why its 2016 flagship Galaxy Note 7 kept on exploding. In a press conference held today, the South Korean company made the investigation public by blaming the bad battery design as the real cause of the problem.

The investigation concluded that two separate malfunctions in the battery resulted in Note 7 to overheat and catch fire. The first issue was in the initial batch of shipments in which Note 7 chassis wasn’t large enough for battery which resulted in it overheating, and catching fire. The second issue was in the replacement battery which Samsung got from a different supplier for replacements units, but since the company rushed the replacement units and didn’t properly go with tests, a defect in the battery from another supplier meant that replacement Note 7 also overheated, and caught fire as well.

http://www.redmondpie.com/samsung-finally-explains-why-galaxy-note-7-exploded/

 

[Dave]

Samsung's probe into its Galaxy Note 7 fiasco has found that the overheating and burning of the phones was caused by faults with their batteries.

The firm had axed its iPhone rival in October last year after an earlier botched recall and re-release.

The recall is thought to have cost $5.3bn (£4.3bn) and was hugely damaging for the South Korean firm's reputation.

On Monday, Samsung said that neither software nor hardware were at fault, only the batteries.

Internal and independent investigations "concluded that batteries were found to be the cause of the Note 7 incidents", the South Korean technology giant said in a statement.

So what went wrong?

The company said that errors both in design and manufacturing affected batteries by two different manufacturers.

According to the findings, the problems centred on insufficient insulation material within the batteries and a design that did not give enough room to safely accommodate the batteries' electrodes.





Samsung said it was "taking responsibility for our failure to ultimately identify and verify the issues arising out of the battery design and manufacturing process".

The smartphone giant did not name the battery suppliers during their Monday presentation, though last year had identified them as their affiliate Samsung SDI and Chinese company Amperex Technology.

Samsung said it did not plan to take legal action and that it accepted responsibility for asking the suppliers to meet certain specifications.

http://www.bbc.co.uk/news/business-38714461