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samsung galaxy note 7 battery explosions, explained

Lithium-
Today, Ion batteries appear in a variety of technologies, from your mobile phone, laptop to aircraft and electric vehicles.
But voluntarily recall some 2.
Reports of the battery explosion on the 5 million Samsung Galaxy Note 7 smartphone have raised concerns about its safety.
Last week, the FAA (FAA)
Warning passengers not to turn on or charge during flight-
Even put them in checked baggage.
Some international airlines have similar restrictions on using smartphones to travel. And the U. S.
The Consumer Product Safety Board recommends that consumers \"stop charging or use the device.
\"Here is the information you need to know about lithium batteries that may power many of your Technologies --
Why are they on fire sometimes? Lithium-
The ion battery is a bit different from the basic AA you use to power the TV remote.
They are rechargeable and usually built directly into the device and rely on chemical lithium as the primary fuel. Lithium-
Ion batteries are particularly popular in devices such as laptops and mobile phones, because they store energy efficiently and charge slowly.
\"You will get a lot of oomph relative to the old technique of the same size --
It\'s usually two to four times the voltage, \"explains Stephen Hackney, a professor of materials science and engineering at Michigan University of Technology.
Like almost all the batteries, lithium.
Ion batteries work by storing energy and releasing it through a controlled chemical reaction. A lithium-
Two electrodes for ion batteries
Where power can enter or leave the battery-
Across the street.
An electrode called an anode is filled with negatively charged ions.
Another electrode called the cathode contains ions and lithium with positive electricity.
You can think of the anode and cathode, just like the positive and negative symbols you often see on the battery.
Lithium moves from cathode to anode when you use battery-
Lithium goes back to the cathode when you charge it.
There is a separator inside to prevent contact between the anode and the cathode, as this can cause accidents such as fire and explosion.
The reason why you injected so much energy into lithium
Lithium-ion batteries are basically \"trying to react to almost anything \"--
This could lead to explosive results, Hackney said.
But he says one of the most common reasons the battery may explode is a mistake during charging.
Inside the battery-dependent device, there is software that tells them how much the battery should be charged and how fast it should be charged.
If these protocols are not set up correctly, it can disrupt the stability of some chemicals inside the battery and cause a chain reaction, which the researchers call \"heat out of control\" and can cause a fire or explosion.
Overheating can also cause an explosion, which is why your phone may pop up with a warning that needs to be cooled when it gets too hot.
Another reason may be shoddy or rough treatment by users.
If unwanted materials, such as metal scrap, are accidentally placed inside the battery when it is made, they short-circuit the battery of the battery and cause the heat to get out of control.
Therefore, if the impact causes the separator to break between the anode and the cathode, the device can be discarded.
What happened to Galaxy Note 7?
This seems to be a manufacturing problem.
In a statement on its United States, the company said it reported at least 35 cases of battery burning due to \"very rare manufacturing process errors\" in anode and cathode contactK. website.
The company decided to temporarily withdraw from the market two weeks after the launch of the phone and provide a replacement for those who have already purchased the device.
The good news, according to Hackney, is that these types of problems are very rare, especially in high
Terminal equipment when manufacturers pay close attention to production quality.
But there are already a lot of highprofile cases.
For example, as early as 2006, Dell recalled more than 4 million laptop battery packs due to burning problems.
On 2013, the Boeing 787 Dreamliner was grounded by the FAA after reporting a lithium-related fire.
Ion batteries used on the plane.
One of the hottest gifts of Last Holiday, half a million hoverboards were recalled this summer because of lithium
Ion battery explosion
Lithium has been regulated by the government and international organizations.
Ion batteries are in many ways, which is probably one of the reasons why we didn\'t see more explosions.
For example, the Department of Transport has rules on how to safely transport batteries. Other U. S.
The regulations also require a variety of safety tests on batteries that eventually enter consumer goods, and the consumer goods safety board oversees many recalls involving lithium products --
Ion batteries considered dangerous.
The agency is working with Samsung to formally recall the Galaxy Note 7 in the United States.

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