Saturday, March 24, 2012

Re: [Electric Boats] Re: from news letter

 

In Energy and Capital:
 
Graphene is also being used to develop lithium-ion batteries, the kinds of rechargeable batteries used in electric vehicles.
Scientists have found that sulfur cathodes could provide a cheap, effective option for lithium battery cathodes.
The issues, however, include sulfur's poor conductivity and tendency to dissolve polysulfides.
But wrap sulfur particles in graphene and these problems could disappear.
Graphene allows for the conductivity lacking in sulfur. The graphene wrap used also aides in trapping polysulfides.
The graphene-sulfur cathode, a cost-efficient option for lithium-ion batteries, also provides a "higher energy density", according to PhysOrg.com.
Several American companies are exploring this opportunity.
Nanotek Instruments, based in Dayton, Ohio, is a producer of graphene. They have received grants as part of the Ohio Third Frontier program.
And Maxwell Technologies (NASDAQ: MXWL), a company that makes energy storage products, has just received $500,000 in state and federal grants to explore various energy storage options.
$200,000 of this will be split between Nanotek and another Ohio company in researching options for lithium-ion batteries.
Maxwell is interested in Nanotek's graphene as an option for the electrode material in their ultracapacitator energy storage.
Money is going into the research, and so far incredible results have been coming out.
We could be flying invisible planes before you know it.
That's all for now,
Brianna
 
The clip I posted earlier was from a different Energy and Capital didnt find it but see

From: Don Parsons <tdparsons@msn.com>
To: electricboats@yahoogroups.com
Sent: Saturday, March 24, 2012 9:25 PM
Subject: [Electric Boats] Re: from news letter

 


--- In electricboats@yahoogroups.com, Kirk McLoren <kirkmcloren@...> wrote:
>
> Engineers at Northwestern University have a made a graphene electrode that allows lithium-ion batteries to store 10 times as much power and charge 10 times faster.
>

Can you tell us if these are available yet commercially?

When I did a search nothing came up news wise in 2012.

Lots of info dated 11/2011 and going back to 2009 on this technology.

How about a link to the news letter.

Thanks,
Don



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