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Better Batteries

Discussion in 'General Science Discussions' started by amusicsite, 1 Nov 2015.

  1. amusicsite

    amusicsite dn ʎɐʍ sᴉɥ┴ Staff Member

    Location:
    UK
    http://phys.org/news/2015-10-path-ultimate-battery.html

     
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  2. welsh dragon

    welsh dragon Active Geek

    I find the new inventions and technologies quite fascinating. I thought I heard somewhere about air batteries. I really do hope they manage to get these up and running. Can you Imagine being able to drive from london to Scotland on one charge? And it will be cheaper than current ones.

    excellent idea if it works and works well.
     
  3. beanz

    beanz Staff Member Staff Member

    Agreed. I think the world is acutely in need of the next huge advance in battery technology. It will have an impact on every aspect of life - travel, entertainment, mobile tech, medicine...
    On a slightly trivial level, I would love a laptop that ran for weeks on a single charge! :chairspin:
     
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  4. amusicsite

    amusicsite dn ʎɐʍ sᴉɥ┴ Staff Member

    Location:
    UK
    I've been following this topic for a while... Basically since I had a walkman and portable hi-fi system back in the 80s. Wow those things would chew through batteries in no time. I still love my ipod shuffle and modern equivalent, where I can listen to a whole days music on one charge and then plug it in and get another days charge for pennies... My original shuffle is still going strong and the life of modern batteries often well outlasts the device it powers.... Certainly for low powered devices. The problem is as power consumption increases batteries don't cope as well.

    Even a modest ten fold increase of storage would revolutionises how we use electricity and some of the technology on the horizon is promising much more than that, with faster recharge, less heat and most importantly much safer. i.e. no exploding batteries or nasty chemical leaks. A fascinating subject to follow is battery technology.
     
  5. beanz

    beanz Staff Member Staff Member

    I do hope battery technology in small devices continues to improve. I have three mp3 players with various podcasts on as I'm often awake during the night and like to listen to something as a means of getting back off to sleep. It's great that they will last the night on a single charge but I don't always remember to stick the one I've used most back on charge again next day.... Which is why I have more than one! :facepalm:
     
  6. beanz

    beanz Staff Member Staff Member

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  7. amusicsite

    amusicsite dn ʎɐʍ sᴉɥ┴ Staff Member

    Location:
    UK
  8. amusicsite

    amusicsite dn ʎɐʍ sᴉɥ┴ Staff Member

    Location:
    UK

    View: https://youtu.be/NiRrvxjrJ1U


    This is quite a fascinating talk about liquid metal batteries. They are quite interesting. The concept seems to be that electricity flows better though liquid metal than solids. Also liquid metals can automatically settle out, like oil on water, so the right metals nicely keep themselves separated without a membrane.

    You can also use earth abundant materials and it very safe ie no thermal runaway or toxic materials but it does have it's drawbacks. Firstly they currently need to be run at about 400 degrees C for the materials to be kept as liquids.

    As charging and discharging generates heat then that can be used to help maintain the temperature but keeping them that hot for a long time is expensive at the moment.