Hacker News Comments on
TOTAL teardown of a lithium phone battery.
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All the comments and stories posted to Hacker News that reference this video.EgyptAir is investigating if a phone or tablet may have led to a crash of one of their jets:http://www.telegraph.co.uk/news/2017/01/13/pilots-phone-tabl...
There have been many devices that have come under scrutiny for their Li-Ion cells. At least few devices explode, and I'm not aware of any killing people, but many have had these meltdowns.
Big Clive successfully took one apart without it going boomb if anyone is interested in what's inside of them:
⬐ kakwa_A few aircraft incidents/accidents were caused by batteries.There is of course the 787 of All Nippon Airway: https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_...
And with battery as a cargo this time, there is a UPS 747: https://en.wikipedia.org/wiki/UPS_Airlines_Flight_6
It's funny/terrifying how we deeply need higher capacity batteries, with shorter charging time and greater energy density, but as a same time, it will probably lead to more unstable and more "prone to burst into flames" items...
Big Clive does a really amazing (and dangerous) tear down of what's inside a Lithium Ion cell, in case anyone wants to see what the parts in the diagram physically look like:
> The thinner the battery, the closer the positive and negative terminals are.Absolutely false. All lithium ion batteries are made of 4 paper thin layers: two electrodes and two separators. These are cut in narrow strips and folded on themselves many times over, even in a thin battery. A thinner battery will simply have fewer folds. The distance between the two electrodes is given by the thickness of the separators and it has nothing to do with the thickness of the cell.
Here's a teardown: https://youtu.be/uI1eRy0uBI8?t=958 (possibly NSFW-ish language).