Headphones exploded with the ear of a woman who was sleeping on an airplane, is the battery defective?

Galaxy Note 7Although it is a lithium-ion battery whose explosion or ignition is regarded as a problem, it was discovered that the headphones exploded at the ear of the passenger's female who was sleeping in the airplane, and this is also a malfunction of the battery It is done.

News: Battery explosion mid-flight prompts passenger warning
http://www.atsb.gov.au/newsroom/news-items/2017/battery-explosion-mid-flight/

A woman sleeping on an airplane was burned by her exploding headphones - The Verge
http://www.theverge.com/2017/3/15/14938788/headphones-explosion-airplane-sleeping-woman

Australia's Transportation Safety Authority announced that the headphones of the passengers had exploded in an airplane from Beijing, China, February 19, 2017 to Melbourne, Australia. According to the Department of Transportation Safety, it is said that the cause of the explosion is likely to be in the headphone battery. In addition, detailed information such as the name of passengers who used headphones, the name of the airline that was operating the airplane where the explosion occurred, the brand of the exploding headphone, etc. are not disclosed.

Passengers' women who had exploded headphones at their ears got burnt black from their ears to their chin.


According to the Department of Transportation Safety Bureau, it seems that a big explosion sounds at the timing when about two hours have passed since the plane departed from Beijing, China. A passenger woman who was wearing headphones slept during the explosion and talked about when the explosion occurred, "I felt my face burning when I got up." .

The woman who was wearing headphones disconnected from his ear, he noticed that it was burning and threw the headphones on the floor. After that, the flight attendant brought a bucket with water and it seemed to have extinguished the burning headphones. At this time, the headphones seemed to have spoken and sparked. After extinguishing the fire smoke disappeared, and the battery and the cover were melting on the floor.

Fortunately for a woman who has suffered a big injury can not be seen, it seems that the cabin full of odor burned with hair.


Moreover, blisters which seems to be caused by burns are also made in hand.


In addition, the Transportation Safety Bureau "Please keep the battery in the preserved storage place if not used" "Spare battery must be put in carrying baggage" "Passenger's smartphone and other devices are seated If you fall into the gap of the seat, please find this before you move the seat. "" If you can not find your own device, please contact the cabin crew immediately without moving the seat " .

Lithium-ion batteries used for small terminals such as headphones are known for their easy thermal runaway. You can see why lithium-ion batteries cause such an explosion when you read the following article.

What is a wake for the smart lithium-ion battery to cause an explosion accident and its workaround? - GIGAZINE


Although it is unknown whether the cause of the explosion accident in this airplane is thermal runaway of lithium ion battery, The Verge of foreign news media is "Galaxy Note 7Hover boardIt is probably the cause of the explosion this time, considering that there is "thermal runaway of the lithium-ion battery" behind the problem of explosion. "