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[Ars] Paving the way for a Lithium Battery that uses an Asphalt Electrode

post #1 of 36
Thread Starter 
Quote:
Once the asphalt was treated, the authors could add lithium to it simply by electroplating it. It formed an even coating on the surface. With that, the material was ready to be used as an electrode.
Quote:
The results were rather impressive. When all of the electrode materials were considered, the battery's energy density was nearly 950 Watt-hours per kilogram. For comparison, the batteries in a Tesla are in the neighborhood of 250 Whr/kg.
Quote:
As always, there's no way to know at this point whether this tech can be commercialized. But this one has a major advantage in that gilsonite is cheap enough that we can afford to pave roads with it.

More at the Source

Pretty impressive stuff, I really hope the treatment process can be scaled up for mass production, nearly 4x the energy density of current batteries might be the breakthrough that electric vehicles need to really become practical for most people.
post #2 of 36
Four times the Wh/kg of current batteries; that can't be cheap to mass produce, which in turn will raise the cost of any vehicle these are used in. EV's with six digit price tags...yikes.

Doing a one off in a lab setting is a different story; you have a huge budget to work with.
Edited by lombardsoup - 10/7/17 at 12:57am
post #3 of 36
The stupid thing to begin with is thinking that the battery tech won't massively improve once there is enough demand. I'm not saying this is the final solution or anything but proves that researchers are doing their part.

I said it before but some people are going to have constant mental meltdowns as EV news tick in. Be well folks.
post #4 of 36
Does anyone know if a patent has been filed yet? This is pointless otherwise.
post #5 of 36
I'm all for a cheap solution to acquiring denser batteries. No reason by this point for us to have batteries that aren't capable of lasting a few days at least without any worry whatsoever. The issue I see is, does this affect the durability of the battery? As in, does it still maintain that same maximum charge, or does it degrade any faster?

If not, that's awesome. ^_^
     
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post #6 of 36
Quote:
Originally Posted by Imglidinhere View Post

I'm all for a cheap solution to acquiring denser batteries. No reason by this point for us to have batteries that aren't capable of lasting a few days at least without any worry whatsoever. The issue I see is, does this affect the durability of the battery? As in, does it still maintain that same maximum charge, or does it degrade any faster?

If not, that's awesome. ^_^

Where degradation is concerned: dendrites do not form in the presence of asphalt/graphene-derived carbon, so there's that.

At present, graphene prices are quite high.
post #7 of 36
Quote:
Originally Posted by lombardsoup View Post

Doing a one off in a lab setting is a different story; you have a huge budget to work with.

In this thread we pretend we know how research works.
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post #8 of 36
Quote:
Originally Posted by CynicalUnicorn View Post

Quote:
Originally Posted by lombardsoup View Post

Doing a one off in a lab setting is a different story; you have a huge budget to work with.

In this thread we pretend we know how research works.
To be fair, considering the push EV's are getting, it could be true. Though I know what you mean about research in general.
    
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post #9 of 36
asphalt can melt in very hot weather when under a very hot engine hood... I have seen asphalt even get "squishy" on 115 degree faren days... so if its squishy when a car wreck occurs, enjoy the melting face splatter?
    
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post #10 of 36
Thread Starter 
Quote:
Originally Posted by Imglidinhere View Post

The issue I see is, does this affect the durability of the battery? As in, does it still maintain that same maximum charge, or does it degrade any faster?

If not, that's awesome. ^_^
Hard to say at this point, They concluded that with graphene ribbons in the mixture there is no lithium build up, which is usually the failure point (A spike in one place can cause an internal short). And from initial testing it seems to hold charge fairly well.
Quote:
Originally Posted by caenlen View Post

asphalt can melt in very hot weather when under a very hot engine hood... I have seen asphalt even get "squishy" on 115 degree faren days... so if its squishy when a car wreck occurs, enjoy the melting face splatter?

Well, its not quite the same stuff as you find on the road, the final product isn't liquid at all. Its a super porous sponge like material (3000m²/gram !) that gets plated in lithium metal. It gets explained in more detail in the source if you have time to read it.
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