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Originally posted by ChaoticOrder
Originally posted by Chippa
reply to post by amtarcher
It's not a big deal!!!
This was being done at UCLA and reported on March of last year!!!
SEE This. www.zdnet.com...
Of course it's a big deal. That article is probably when they were first making these breakthroughs. We've now had enough time for them to start mass manufacturing these types of batteries... and I'm still worried we wont see that day any time soon.
This doesn't really effect oil companies too much, since a lot of electricity is generated with oil anyway...
And I would not underestimate the power of battery companies when they are put in a situation like this. They control a huge sector of the energy industry because batteries are used in so many different places. Unless these battery companies could start making their own graphene batteries they are in trouble.
Originally posted by grey580
Another article.
physicsworld.com...
Researchers in the US have made a graphene-based supercapacitor that can store as much energy per unit mass as nickel metal hydride batteries – but unlike batteries, it can be charged or discharged in just minutes or even seconds. The new device has a specific energy density of 85.6 Wh/kg at room temperature and 136 Wh/kg at 80 °C. These are the highest ever values for "electric double layer" supercapacitors based on carbon nanomaterials.
What exactly does that energy density mean in english?
REASON FOR CHANGE
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Originally posted by Bedlam
Originally posted by grey580
Another article.
physicsworld.com...
Researchers in the US have made a graphene-based supercapacitor that can store as much energy per unit mass as nickel metal hydride batteries – but unlike batteries, it can be charged or discharged in just minutes or even seconds. The new device has a specific energy density of 85.6 Wh/kg at room temperature and 136 Wh/kg at 80 °C. These are the highest ever values for "electric double layer" supercapacitors based on carbon nanomaterials.
What exactly does that energy density mean in english?
It means that it's got about the same energy storage, on a per kg basis, as a lower end lithium ion battery. Li-ion has a storage density of around 100-265 Wh/kg. 85.6 Wh/kg is massive for a cap, even if it isn't quite as good as you can get from an electrochemical cell. It's at least comparable, though.
Originally posted by Bedlam
reply to post by pheonix358
How they compare for Wh/l is something to look at, graphene is light so the cap might be quite a bit larger than the battery. Not sure what the numbers are, at work, no time.
Originally posted by pheonix358
reply to post by FreeThinkerbychoice
If this graphene can be made into a material and hold a charge you could end up with powered clothes which could well take the fashion industry by storm. You could power your laptop by plugging it into your shorts.
P