Explaining the Note 7's battery flaws (with cake)
By now everyone is pretty much aware that the Samsung Galaxy Note 7 has a tendency to spontaneously catch fire.
But it's only after months of investigating that Samsung is opening up about why the recalled phone is overheating.
And it turns out that it all comes down to poorly made batteries.
Specifically there were two separated battery defects.
One in the original batch of Note 7s and another in the replacement units.
To understand what exactly went wrong, you have to understand what's inside a lithium ion battery.
It may look like just a thin square, but inside it resembles something like this snack cake.
Thin layers of positive and negative electrodes are folded up like a jelly roll with a super thin separator keeping the positive and negative layers from touching.
If for any reason the folds aren't just right, and the layers get squished or if they touch, boom.
You got a short circuit and a phone on fire.
According to Samsung, the original batteries were a bit squished in the upper The right corner.
And the tip of the negative layer curved over.
Additionally one of the ends was sitting in the wrong spot of the fold.
The second set of replacement batteries suffered a different problem.
These came from another supplier and in the rush to pump out replacement batteries quickly, the manufacturer was sloppy, and the separator was punctured, leaving the layers touching.
In some cases, there was even some insulation missing inside.
To solve the mystery of the exploding phones, Samsung created a special facility to test more than 200,000 phones, and more than 30,000 batteries.
Samsung also worked with three independent testing agencies.
But, now, Samsung faces a bigger mystery.
Will customers trust the brand again Here's the take from CNET Executive Editor Roger Cheng, who spoke with Samsung executives.
So, I think, they're taking the right first step in being as transparent as possible.
They're really going into detail, over sharing On exactly what happened to both the first and second batch of Note 7s.
I think there's still a long road ahead of them when it comes to building back that credibility with consumers.
To catch future mistakes, Samsung said it is implementing additional safety checks for batteries, such as beefing up the stress tests and x-ray exams, and charging and discharging the batteries on a large
The upcoming Galaxy s8 and on8 will also go through this test.
That's right, Samsung continuing the known brand with a new one.
Believing that there are enough world fans who would give the phone another chance.
From CNET, I'm Bridget Carey.
Up Next
How Many Times Did Google Say AI at I/O 2024?
Up Next
How Many Times Did Google Say AI at I/O 2024?
Everything Google Just Announced at I/O 2024
Everything Google Just Announced at I/O 2024
Google Introduces Gemini AI Upgrades to Gmail and Chat
Google Introduces Gemini AI Upgrades to Gmail and Chat
Ask Photos Uses AI to Search Your Google Gallery
Ask Photos Uses AI to Search Your Google Gallery
Everything OpenAI Announced at Its Spring Update Event
Everything OpenAI Announced at Its Spring Update Event
Apple's iPad Pro Event Was a Flop
Apple's iPad Pro Event Was a Flop
What to Expect at Apple's iPad Event
What to Expect at Apple's iPad Event
What AirPods Rumors Tell Us About Apple's Health Ambitions
What AirPods Rumors Tell Us About Apple's Health Ambitions
What is the Fediverse?
What is the Fediverse?
The Missing Piece to Apple's Eco-Friendly Mission
The Missing Piece to Apple's Eco-Friendly Mission
Tech Shows
Latest News All latest news
Hands-On With Huawei's Pura 70 Ultra
Hands-On With Huawei's Pura 70 Ultra
I Tried Three Fitness Apps to Help My Postpartum Recovery
I Tried Three Fitness Apps to Help My Postpartum Recovery
How Many Times Did Google Say AI at I/O 2024?
How Many Times Did Google Say AI at I/O 2024?
I Tried Google's Project Astra
I Tried Google's Project Astra
Everything Google Just Announced at I/O 2024
Everything Google Just Announced at I/O 2024
Google Introduces Gemini AI Upgrades to Gmail and Chat
Google Introduces Gemini AI Upgrades to Gmail and Chat
Most Popular All most popular
First Look at TSA's Self-Screening Tech (in VR!)
First Look at TSA's Self-Screening Tech (in VR!)
Samsung Galaxy S24 Ultra Review: More AI at a Higher Cost
Samsung Galaxy S24 Ultra Review: More AI at a Higher Cost
'Circle to Search' Lets Users Google From Any Screen
'Circle to Search' Lets Users Google From Any Screen
Asus Put Two 14-inch OLEDs in a Laptop, Unleashes First OLED ROG Gaming Laptop
Asus Put Two 14-inch OLEDs in a Laptop, Unleashes First OLED ROG Gaming Laptop
Samsung Galaxy Ring: First Impressions
Samsung Galaxy Ring: First Impressions
Best of Show: The Coolest Gadgets of CES 2024
Best of Show: The Coolest Gadgets of CES 2024
Latest Products All latest products
I Tried Google's Project Astra
I Tried Google's Project Astra
New iPad Pros and iPad Airs vs. Earlier iPads
New iPad Pros and iPad Airs vs. Earlier iPads
Road Testing Lincoln's Massive Panoramic Dashboard Display
Road Testing Lincoln's Massive Panoramic Dashboard Display
Google's Pixel 8A Is Here: What's New and Different
Google's Pixel 8A Is Here: What's New and Different
Trying an AI Exoskeleton in the Real World
Trying an AI Exoskeleton in the Real World
Rabbit R1: Here's What It Can Actually Do
Rabbit R1: Here's What It Can Actually Do
Latest How To All how to videos
Samsung Galaxy S24 Ultra: Ultimate Good Lock Tips and Tricks
Samsung Galaxy S24 Ultra: Ultimate Good Lock Tips and Tricks
How to Install Windows 11 on M-Series Mac Computers
How to Install Windows 11 on M-Series Mac Computers
Tips and Tricks for the AirPods Pro 2
Tips and Tricks for the AirPods Pro 2
How to Watch the Solar Eclipse Safely From Your Phone
How to Watch the Solar Eclipse Safely From Your Phone
Windows 11 Tips and Hidden Features
Windows 11 Tips and Hidden Features
Vision Pro App Walkthrough -- VisionOS 1.0.3