Posted on 12/05/2016 3:44:55 PM PST by Swordmaker
A teardown of the Galaxy Note 7 may have provided insight into why the infamous smartphone was prone to explosions, causing Samsung to recall and eventually cancel the device entirely. While it’s obvious the battery was a key reason for the device’s failure, a damning new report from a third-party shows what may be the underlying cause.
After acquiring a Galaxy Note 7 — no easy feat once the phones were recalled — engineers with manufacturing technology company Instrumental stripped the phone down to see what was going on inside (and yes, they had a fire extinguisher nearby, just in case). They discovered the battery was so tightly packed inside the Galaxy Note 7’s body that any pressure from battery expansion, or stress on the body itself, may squeeze together layers inside the battery that are never supposed to touch — with explosive results.
More: Samsung’s battery-making arm loses market value after Note 7 debacle
Batteries swell up under normal use, and we place stress on a phone’s body by putting it our pocket and sitting down, or if it’s dropped. Tolerances for battery expansion are built into a smartphone during design, and Instrumental notes Samsung used “a super-aggressive manufacturing process to maximize capacity.” In other words, the Galaxy Note 7 was designed to be as thin and sleek as possible, while containing the maximum battery capacity for long use, thereby better competing against rival devices such as the iPhone 7 Plus and improving on previous Note models.
The report speculates that any pressure placed on the battery in its confined space may have squeezed together positive and negative layers inside the cell itself, which were thinner than usual in the Note 7’s battery already, causing them to touch, heat up, and eventually in some cases, catch fire. Delving deeper into the design, the engineers say the space above a battery inside a device needs a “ceiling” that equates to approximately 10 percent of the overall thickness. The Galaxy Note 7 should have had a 0.5mm ceiling; it had none.
“It breaks such a basic rule, it must have been intentional,” says the Instrumental team, adding, “they shipped a dangerous product.”
The Galaxy Note 7 fiasco may cost Samsung more than $20 billion, and reports of this nature won’t help re-establish trust in the brand. However, it’s worth repeating this isn’t a Samsung report, so none of the findings are official, and that Instrumental itself produces software and equipment for quality testing in manufacturing. This means that although it has a strong understand of what it’s looking at, it is also promoting its own products and solutions in this market.
Samsung’s next major smartphone release is expected to be the Galaxy S8, due sometime in early 2017, according to rumors.
You're a freakin' riot. I've seen you come in and take a cr@p on Apple threads for no reason at all except you had to take a cr@p.
You obviously have a glorious future in promulgating fake news. Maybe you could set up a fake news aggregation site (you know there's lots of it out there) and you could call it the "Meta-Fake News Site".
And the motto could be "I never Meta Fake News Site I didn't like."
Say, nothing personal, but those of us who are here for the tech-related news don't appreciate your droppings. So next time you feel like you have to take a cr@p, how about doing it on some other thread? Thanks.
They aren't better than 200. There's other reasons an iPhone or iPad could fail. . . but that is the expected failure rate for just the Lithium Ion batteries, you have other components that also have expected failure rates as well that will go into making up the expected failure rates for the over all devices. The reported failure rate among the batteries on iPhones and iPads approaches that level of one in 10 million to 12 million per year. . . but it still results in several per month occurring, some of them occasionally catastrophically.
http://www.breitbart.com/california/2016/10/21/2nd-fire-apple-iphone-7-threatens-mass-recall/
Apple fires
read and weep loser
Is there a common factor in batter maker or battery material manufacturer?
Hmm, but would it necessarily expand in that direction? If the layers swell, wouldn’t that push out on the back? I’d bet good money the expansion direction is related to how the cells are arranged.
hey
read this
http://www.breitbart.com/california/2016/10/21/2nd-fire-apple-iphone-7-threatens-mass-recall/
stop calling real news fake news, who do you think you are? CNN?
loser
Look, you repetitious asshat, I've responded to you this same article twice before last month, and nothing has changed since then. Why are you repeatedly claiming the same thing when it has been roundly debunked as not a serious issue with this model iPhone or any iPhone, for that matter? It is apparently only in your delusional mind that it even approaches an issue. The major media HAS reported on this and dismissed it, but that's not enough for you!
The first fire they were talking about in this article you keep posting was an iPhone 7 Plus that was damaged in shipment that the shipping box was crushed, the iPhone box inside, the iPhone 7, and the iPhone 7's battery itself were all penetrated and badly damaged by some hard object in the incident. One does NOT EVER damage a Lithium Ion battery without creating the conditions for a fire. . . and this incident was no different. It caught fire.
There was NOTHING spontaneous about this first fire, it was created by an outside application of force during a shipping accident.
The fire that was the primary purpose of the article occurred in a car belonging to an Australian surfer trainee who left his iPhone 7 while on charge (later investigators found he was in fact using a third party, non-Apple certified car charger contrary to his self-serving claims it was not) on the seat in his shut up car in the sun under a dark pair of jeans. Temperatures in the car reached over 140º due to a hot day and no shade where he was parked. Again, not something that was an advisable thing to do. When the surfer returned after a day of surfing education, he found fire damage on his car seat and his car full of smoke.
No threat of a full iPhone 7 recall, as hinted in the over-the-top hyperbole headline, was ever spoken about or considered by Apple, any government agency, or private consumers' safety organization. . . it was the pipe-dream of a headline writer to get advertising click through.
Doing Google Searches and other search engines, there are only THESE TWO fires associated with the iPhone 7 out of now over 30,000,000 iPhone 7 units sold in under three months, yet you want people to believe your claims that there is something to "weep" about. YOU ARE DELUSIONAL!
As Fortune Magazine stated in its October 21, 2016 report on the Australian incident "And at least so far, there haven’t been widespread claims that the iPhone 7, which reached store shelves last month, is overheating and catching fire." There are no widespread reports of other fires associated with Apple iPhone 7. You had to go back a month and a half to RE-POST an old report with hype in it to even come up with this report from origination from an Australian TV station.
As 9 to 5 Mac, also on October 21, 2016 reported in their article on the Australian iPhone 7 incident, it is not unusual to see some iPhone fires every year or month.
"That there have been a number of iPhone fires over the years is in no way surprising. The overall failure rate of lithium batteries is around 1 in 10 million. When you have a billion active iOS devices, you’d expect around 100 of them to catch fire, so a handful of isolated cases is not evidence of any issue specific to the iPhone."
That is the exact point I have been making based on the statistical failure rate of Lithium Ion batteries in general.
Now, arl295, quit lying and stop repeatedly posting your DELUSIONAL TWADDLE on every iPhone thread!
It is really the science behind Li-ion technology more then a manufacturer
Li-ion holds a lot of power in a small compact cell
Lead Acid, are huge and are very durable and last years even decades, these are found in car batteries, UPS systems, emergency lighting, alarm panels and the like. That technology has been around for ages, however it is inappropriate in small portable electronic devices like phones and laptops, no body wants to carry around a car battery.
The problem is in the design from both Apple and Samsung, both phones have problems
http://www.breitbart.com/california/2016/10/21/2nd-fire-apple-iphone-7-threatens-mass-recall/
however, Samsung recognized their problem and even recalled the phone. Shows that they really care about the safety of their products and customers ahead of shareholders
Apple on the other hand, is just ignoring the problem until the government forces them to do something. They did this before the with iBook/MacBook fiasco a few years ago with exploding iBooks and MacBook laptops. The ignored the problem until the government forced them to recall. Dell on the other hand agreed to do a voluntary recall of their products that were affected by the battery design, even though the failure rate was less common with their product lines. Again, Dell cares about its customers and reputation then share holders.
Starting to see a common trend here? I do..... But don’t tell anyone on this thread, they will come on and ridicule you and call you names just like little baby left wing radicals who just lost an election. Hissy fits and safe rooms, play’doh and coloring books....
They expand in all directions, but much more in the direction parallel, or actually horizontal, to the plates of the cells. Since that is usually in the thickness dimension, that would be where you would want the most expansion relief. You are right, arrangement of cells would have something to do with where the expansion direction is required. But from the photos the engineers' posted on their site, there was no expansion in any direction provided. If it was in the thickness dimension, it would not matter as the battery is essentially free-floating, even though glued to the bottom. Expansion at the glued, fixed bottom would lift the unfixed top as the entire battery expanded, but only if there were room to do so. This as the engineering failure that caused the problem. . . there was no room for that lifting to take place into.
You clearly can't read the article you posted. One phone was severely damaged mechanically, which most likely caused that failure, and the other one is not even established as the cause of the fire in the car. (The driver was sure it was the phone... Yeah, that gets him his 15 minutes of fame because it's "Apple" in the headline.)
I'm as sure as you are that those two events happened -- but you cannot credibly use those as the basis of a claim that iPhones have a high failure rate. If you do, you're a fool.
Look, high tech stuff can fail, we all know that. I was doing failure mode analyses on spacecraft subsystems and components 35 years ago, I know something about the topic, so don't pull such juvenile cr@p, okay? "Loser"? You're just a fool trying to make a stupid and false point. Can't you find some other place to haunt with your foolishness? Please?
. . . in the same thread? You are delusional.
You are the loser here, not dayglored or me or any of the other posters who have called you on your delusions.
That article proves exactly NOTHING if you are trying to show a rampant problem with all Apple iPhone 7 or even iPhones in general that shows a need to recall all Apple iPhones over exploding batteries or even fires.
Do a search for iPhone 7 batteries that have been reported to have caught fire since then. You won't find any.
Read that and weep, Arl295
Did you read the article?
Oh wait, you did not so all you posted is just bunk, as usual
The problem was that the iPhone was in someone’s car and it burned out the guy’s car. Great design
Here is the article so you can read it
http://www.breitbart.com/california/2016/10/21/2nd-fire-apple-iphone-7-threatens-mass-recall/
Take your time, read it slowly so you understand it this time
MMkay?
I see crappy engineering everyday.
Come up with ECNs all the time.
Don’t forget the damn bean counters!
http://www.breitbart.com/california/2016/10/21/2nd-fire-apple-iphone-7-threatens-mass-recall/
already found
right here
read and weep loser
Welcome to my world LOL
The problem is in the design from both Apple and Samsung, both phones have problems
You are constructing a FALSE EQUIVALENCY that has zero evidence for being true. You've presented no evidence that it is. . . but you keep beating that dead horse for months and have come up with nothing to back your claim. Yet you keep posting the same discredited hyperbolic headlined article that makes a claim that has not come to fruition at all, not even close.
You have this habit of posting things that provide no value or merit in these threads, and then doubling down when you and your comments are shot down with documented evidence, which YOU refuse to accept or refute.
Why are you such a right-fighter, always having to have the last word, even though you have been shown to be DEAD, DEAD, DEAD WRONG?
Most engineering mistakes are in trying to make something all things to all people.
There are always trade offs.
Dragster or luxury vehicle?
Motocross bike, cafe, or cruiser?
The central design will piss off both ends
The main issue here is Lithium ions that dumbasses have no respect for
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