Phone

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

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

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maccyb
maccyb

I don’t believe that. A lot of phones are thin. Note7 wasn’t exceptionally thin. The Note7 was 7.9mm, the S7 Edge is thinner at 7.7mm and has an even bigger battery and smaller body…As Mr. Spock would say “It’s not logical Captain.” lol

Vibgyoar
Vibgyoar

If this is true why were there no fires in the distribution network and retail inventory?

SenorSjon
SenorSjon

Because they lay down idle there. A phone in the ‘outside’ world always had some flex during the day, so that could work against it, even while lying down.

Rich Young
Rich Young

This is not the downfall of the Samsung company…this is not a careless Samsung has done..this is a mistake but trust you guys that this mistake will lead Samsung to produce most smartest and thin phone ever…I till love and stick to SAMSUNG

Paulrbutcher
Paulrbutcher

I have many Samsung items but things like this make me think should i trust this company if this type of thing is going on.
Research in to all of its items is vital not only for reliavility but for also saftey, I wanted to buy the note 7 as i have had the note 2, 3 and i have the note 4.
Trust in Samsung is now a bit shaken.

Ryan Gringo
Ryan Gringo

The thinner and thinner is ridiculous, i have an Oukitel K6000 Pro, and i partly bought it because it has a huge battery, and was not put off atall by the thickness

o0MHJ0o
o0MHJ0o

I think it was Sharp that made the worlds thinnest phone, with next to no ports or real functionality because it was so thin. that ship has sailed, no one is marvelled by the thinness of phones anymore, give us something well made and lasts.

billywongwashere
billywongwashere

I m in favour of keeping phones thinner and smaller for “normal” 5.1 inch size phones.

For phablets then there is some “room” for extra space for components. Look at the huge size of the iPhone 7 plus

We will have to wait to the final report. It can me many things

bostonsa
bostonsa

I don’t think so completely… the S7 Edge has a larger capacity battery in the slightly smaller size phone with (according to pictures) same gap space internally. In my opinion, there are three separate or combined factors here; outdated battery technology which is an industry-wide problem, possible imperfections in the materials and buildup of heat with no escape due to water tightness and old battery tech.

dcarmi
dcarmi

Regardless of the final outcome, the obsession with ever thinner phones is ludicrous. The manufacturers then coat the surface in shiny metal and glass to make them as slippery as they can. These things are meant to be portable. They get put in pockets, bags and get generally bumped around. The result is people then buy faux leather cases or plastic shields to protect their very expensive devices. What I want is a robust device, with decent battery life that does not behave like a bar of wet soap when you pick it up. If that means it is 3… Read more »

Kuwago
Kuwago

Very much agree with this. I realize many people have different concerns and wants in their devices but I have not even considered any NEWER versions of NOTE than the NOTE 4 I have now. My Note 2, my 2nd phone bumped down when I bought the Note 4 is obviously going on 5 years. At the price we pay for these I intend to keep them as long as possible and I very much dislike the idea that I have to find OFFICIAL Samsung service to change my battery? Seriously if the S5 was able to give us dust… Read more »

tswfootball
tswfootball

I agree that the craze over thinness should be dropped.

But I still want a phone made out of metal that feels premium.
I wish Samsung ditches their glass design for a metal phone soon..

warlockba
warlockba

Oddly enough, since posts like these get -1 votes (and I see nothing offensive in them) – it only proves what these posts are saying; which in turn is very sad, as encouraging the behavior of manufacturers to go in this direction is the wrong way of evolution.