Here's why Samsung Galaxy Note 7 phones are catching fire
The Samsung Galaxy Note 7 could explode.
How could this have happened? Simple: your phone is a Samsung Galaxy Note 7 - and it's one of over a hundred that have spontaneously burst into flames.After 35 reported incidents of overheating smartphones worldwide, Samsung made the unprecedented decision to recall every single one of the Galaxy Note 7 smartphones sold.The company stopped all sales and shipments of the Note 7.We're not sure why the new batteries might have caught fire, as Samsung told us they'd be brand-new.Here's what we know about Samsung's battery rarely.
The basics
The science behind phone battery fires is actually pretty simple, and fairly well understood. Much like the infamous exploding hoverboards, phones use lithium ion battery packs for their power, and it just so happens that the liquid swimming around inside most lithium ion batteries is highly flammable.
If the battery short-circuits -- say, by puncturing the incredibly thin sheet of plastic separating the positive and negative sides of the battery -- the puncture point becomes the path of least resistance for electricity to flow.
It heats up the (flammable!) liquid electrolyte at that spot. And if the liquid heats up quickly enough, the battery can explode.
If the battery short-circuits -- say, by puncturing the incredibly thin sheet of plastic separating the positive and negative sides of the battery -- the puncture point becomes the path of least resistance for electricity to flow.
It heats up the (flammable!) liquid electrolyte at that spot. And if the liquid heats up quickly enough, the battery can explode.
Why Note 7?
What makes the Note 7 different: Samsung may have accidentally squeezed its batteries harder than it should.
According to a unpublished preliminary report sent to Korea's Agency for Technology and Standards (obtained by Bloomberg), Samsung had a manufacturing error that "placed pressure on plates contained within battery cells," which "brought negative and positive poles into contact."
"The defect was revealed when several contributing factors happened simultaneously, which included sub-optimized assembly process that created variations of tension and exposed electrodes due to insufficient insulation tape," a Samsung representative tells CNET.
What happens next?
These are just a few theories based on one battery expert's remote analysis of Samsung's initial findings. We don't have the whole truth yet, and the truth is what Samsung and government agencies around the world are looking for as we speak. Just one mystery: why the replacement batteries might also be exploding.Anyhow, organizations like the US Consumer Product Safety Commission have officially stepped in to recall the Galaxy Note 7 and figure out what happened, and they may recall it again.
ＷＨＯ：Samsung Galaxy Note 7
ＷＨＥＮ：October 2016
ＷＨＡＴ：explosion reasons
ＷＨＹ：battery and circuit
ＷＨＥＲＥ：South Korea
ＨＯＷ：One after another recycle of the explosion mobile phones
KEYWORD：
1 spontaneously : 自發地
2 burst : 爆炸
3 unprecedented : 史無前例的
4 shipments : 出貨
5 brand-new : 嶄新的
6 lithium : 鋰
7 ion : 離子
8 flammable : 易燃的
9 circuits：線路,迴路
10 sheet : 片
11 puncture : 刺穿
12 resistance : 電阻
13 squeezed : 擠壓
14 preliminary : 初步的
15 manufacturing : 製造業
16 contribute : 有助於
17 simultaneously : 同時
18 variations : 變動,異動
19 electrodes : 電極
20 insufficient : 不足
Such a funny story for another smartphone company
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