Samsung explains why some Galaxy Note 7 batteries tend to blow up

If you happen to own a Galaxy Note 7, then you should stop using it if you know for sure that the battery comes from Samsung SDI. At least, that's what Samsung advises customers that bought the smartphone and are already using it.

The South Korean company announced earlier this month that there have been 35 cases reported globally, which will be investigated in order to identify any possible issues with the batteries.

Since Samsung started the investigation, a few more Galaxy Note 7 units blew up in different parts of the world, which even made FAA consider banning this particular device from flying on US airlines.

We already know that the batteries manufactured by Samsung SDI are to blame, but what exactly went so wrong that Samsung had to issue a massive Galaxy Note 7 recall?

An official statement issued by Samsung says that “based on our investigation, we learned that there was an issue with the battery cell. An overheating of the battery cell occurred when the anode-to-cathode came into contact which is a very rare manufacturing process error.

Even though customers are asking for better batteries inside their phones, the battery technology hasn't made any breakthroughs yet. That being said, it's worth noting that any Li-ion battery has the potential to blow up because of the chemistry products inside.

For example, Lithium has a high electrochemical potential, which is why it's used as an anode inside high-capacity batteries. However, Lithium is also highly reactive and more susceptible to thermal runaway.

When a faulty battery overheats, it causes the cells to break open, thus resulting in a chain reaction of other cells breaking. This is called thermal runaway and it's usually the main reason some batteries explode. The actual defect that causes a thermal runaway can be a simple short circuit or even a design flaw.

It appears that some batteries inside the Galaxy Note 7 suffer from a “very rare manufacturing process error,” so it makes sense for Samsung to replace them as soon as possible.

source: Samsung via HardwareZone

Story timeline



1. TheNeighbor

Posts: 370; Member since: Nov 15, 2013

Yeah, and I'm having mine back brand new in 2 weeks.

4. trojan_horse

Posts: 5868; Member since: May 06, 2016

I'm keeping mine untill the replacement units arrive, bruh. I'll take my chances.

6. ashrafalhujaili

Posts: 73; Member since: Oct 03, 2014

This is really dangerous You should return your device right now

7. trojan_horse

Posts: 5868; Member since: May 06, 2016

I understand the risk, bruh. But can't help it. Lol

12. Feanor

Posts: 1415; Member since: Jun 20, 2012

Somebody please ban this guy from the website. Why exactly can't you help it giving up on your Note 7? Get a replacement phone and also get a life.

18. maherk

Posts: 7007; Member since: Feb 10, 2012

Maybe they should ban you. It is his life, he wants to keep his phone, why is that bothering you that much? DJ is keeping his phone as well, should PA ban him as well? And should he also "get a life" because he chose to keep his phone?

23. Feanor

Posts: 1415; Member since: Jun 20, 2012

Because depending on usage you can put in danger not only your life but the life of others too. E.g. during a flight, charging it in a workshop etc. Or if you manage to set your flat on fire and adjacent flats get damaged too. You should get banned too and all thinkless morons who think that holding on to their dear smartphone is more important that basic safety rules.

15. adi90

Posts: 554; Member since: Dec 21, 2015

Get a lgv20. Why risk your life when you have lg.

8. thegeneral7010

Posts: 437; Member since: Dec 10, 2014

Just keep it away from you a$$.

20. amats69

Posts: 1527; Member since: Nov 12, 2012

LoL what happened? i thought you wont return ur phone for a replacement? so this means, end of your denial stage? LMAO

22. dimas

Posts: 3404; Member since: Jul 22, 2014

Where was your note 7 assembled? I think pa said something days ago that if it's assembled in china it is safe.

27. Arch_Fiend

Posts: 3951; Member since: Oct 03, 2015

I've decided that you don't even own a Note 7 because you can't be so stupid as to still be using it can you? Give me a legit reason why you are still using it and i'll believe that you actually own one, like saying you are still using it because you're a fan boy or that you're just stupid. Don't give me BS like this "I understand the risk, bruh. But can't help it. Lol" because that kind of answer just scream to me that you don't actually own a Note 7 and you are just trolling everyone.

31. NarutoKage14

Posts: 1345; Member since: Aug 31, 2016

Some people like to live on the edge.

36. tedkord

Posts: 17456; Member since: Jun 17, 2009

I'm holding on to mine too. The risk is minimal.

30. NarutoKage14

Posts: 1345; Member since: Aug 31, 2016

Please submit your story and plenty of pics to PA if it commits suicide before then.

9. Hallyu

Posts: 790; Member since: Jul 21, 2015

Fans are very proud of how Samsung has handled the situation pretty well. A respectable company is doing its best to make sure that the client's life is secured. Imagine if this was Apple, it would probably deny its fault like "You're charging it wrong!" or maybe ignore the news as always.

11. llk171

Posts: 95; Member since: Mar 31, 2013

How they have handled this. ha. How did you think they were going to handle their phones exploding? Before you crap on about apple, their phones don't explode. Had they not done this, it could have turned into a nightmare for them and the note range. Fandroid fanatics are 1000 times worse than Apple. You guys still cannot openly even acknowledge the problem without mentioning apple. You probably think it's a conspiracy by apple.

19. Hallyu

Posts: 790; Member since: Jul 21, 2015

" How did you think they were going to handle their phones exploding?" Samsung calls off the shipment and offers the replacement for all the defective devices. Isn't that a more than enough satisfactory solution already? I keep mentioning Apple since most of the trolls here are Apple fanboys and pure Samsung haters. They even created more multiple accounts to troll and mess up the comment section here. What's worth mentioning is that Apple has never admitted its fault, nor it offered a reasonable deal when it comes to its defective products, but all its best is to find a way to make sure the profit margin is through the roof.

24. UnlimitedSkye03

Posts: 300; Member since: Apr 27, 2012

iPhones explode randomly, and doesn't have to be plugged-in.

29. Arch_Fiend

Posts: 3951; Member since: Oct 03, 2015

Not really coming to Apple's defence here but so does the Note 7 so why even comment what you said? Should have just left this thought in your head man.

32. Doakie

Posts: 2478; Member since: May 06, 2009

You can sit there and say Apple would handle this better but we all have seen how Apple denies things rather than recall anything. Nice try though.

37. tedkord

Posts: 17456; Member since: Jun 17, 2009

Plenty of iPhones have exploded. There are stories all over the net about them.

17. therealestmc

Posts: 679; Member since: Jul 23, 2012

Perhaps Samsung should do an official recall so that the government can make it illegal for people to sell the phone. Only then I would believe that Samsung truly cares about his customers.

25. HugoBarraCyanogenmod

Posts: 1412; Member since: Jul 06, 2014

you really need to calm down mate. Its just a phone and there's no reason to defend so hard for that, thou you're telling the solid and undeniable truth, fact and reality. But in the end its just a phone

28. Arch_Fiend

Posts: 3951; Member since: Oct 03, 2015

You can charge your iPhone wrong tho, just saying.

39. Hoggington

Posts: 356; Member since: Feb 23, 2016

I doubt it. It'll take longer. Just watch.

2. Ninetysix

Posts: 2965; Member since: Oct 08, 2012

This blows :( Such a killer device with this issue.

14. chenski

Posts: 779; Member since: Mar 22, 2015

Pun intended?

33. ebilcake

Posts: 1231; Member since: Jul 16, 2016

Note 7 going out with a bang.

3. Fona13A unregistered

Two forces collided and crossed streams, causing an awkward situation.

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.