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posted by martyb on Tuesday December 13 2016, @12:28PM   Printer-friendly
from the had-to-conduct-a-battery-of-tests dept.

Have you ever taken the back off your phone and seen that your battery has swollen up like an inflatable pillow? For the first time, scientists have been able to peer deep inside to see what is happening.

Lithium-ion batteries have become ubiquitous in phones, laptops and hoverboards because they are lightweight and hold a lot of charge. However, a  recent spate of explosions has raised safety concerns.

One reason these batteries are damage-prone is because of their structure, says Toby Bond at Canadian Light Source, a synchrotron facility in Saskatoon, Canada. They usually contain electrode sheets wrapped in a spiralling "Swiss roll", or "jelly roll", configuration to fit in as many energy-producing layers as possible, but this causes problems if gas forms inside.

Gas can build up if a battery becomes overheated or overcharged, or is left drained of charge for too long. Under these conditions, the liquid components in the battery can vaporise and produce gas. This causes the external casing to swell up, resulting in the characteristic pillow appearance.


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  • (Score: -1, Flamebait) by Anonymous Coward on Tuesday December 13 2016, @12:51PM

    by Anonymous Coward on Tuesday December 13 2016, @12:51PM (#440767)

    http://soylentnews.org/article.pl?sid=16/12/11/1758223 [soylentnews.org]
    > by Azuma Hazuki (5086) Subscriber Badge on Monday December 12, @10:50PM (#440596)
    >
    >I really hope I get to see your afterlife. You're bringing all sorts of literally hellish horror down on yourself.
    >If you're LUCKY you'll reincarnate female and poor in the US; not so lucky and it'll be somewhere in southeast Asia.

    If the God of Deuteronomy is currently in Hell, Hell is where I want to be. Apparently a cuck-god that's nice to women and oppressive against men is on the throne of heaven with Jesus at his side, while Jesus speaks of the God of the Jews as "the father of lies" and "a murderer from the beginning" and says "do not stone the woman who was caught in adultery" and "but if a MAN even looks at a woman he has committed adultery in his heart" and "offend a child: better a millstone" and "there is no man nor woman, you are all one in me" and "die for the woman". While God says: the man is master (ba'al) of the female, kill the female that has relations with a man other than her master, if you rape a female child still in her fathers house pay her father 50 silver and keep her as your female but do not send her away aslong as your days as you have humbled her.

    I'd rather be in hell, with all the men who like qt3.14 female children, plotting the overthrow and torture of your people, than submit to your cunttress in heaven and still have no child brides.
    Atleast in hell there is hope. In your heaven there is only quiet desolation.

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  • (Score: -1, Troll) by Anonymous Coward on Tuesday December 13 2016, @01:04PM

    by Anonymous Coward on Tuesday December 13 2016, @01:04PM (#440771)

    To hell with marrying young girls, murdering young girls is the best! Kill them before their eggs drop!

    • (Score: -1, Troll) by Anonymous Coward on Tuesday December 13 2016, @02:00PM

      by Anonymous Coward on Tuesday December 13 2016, @02:00PM (#440780)

      Female children were made for men.

      Feminist cunts should be killed. The Catholic church burned proto-feminists alive.