Devices That Run on Paper?

No, we're not talking about burning it for fuel

By Annie Geffroy
|  Thursday, Dec 10, 2009  |  Updated 1:38 PM CDT
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Today's electric vehicles require huge heavy lithum ion batteriies and can't travel very far between charges. However, this "paper battery" technology could completely change that.

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Imagine a world where batteries last 10 times longer, electronics are lighter and more powerful and electric cars are a commercially viable invention. Thanks to researchers at Stanford, this could be a reality sooner rather than later.

Scientists at Stanford have successfully used ordinary paper, coated with silver and carbon nanomaterial ink to make a “paper battery”.
 
This technology could mean power sources that are much more powerful than the lithium ion batteries used to run many of today’s electronics such as cell phones and laptops.
 
This lightweight power source could be the key to creating lighter, more efficient and longer lasting electric vehicles, which have yet to really take off with available technology.
 
“Society really needs a low-cost, high-performance energy storage device, such as batteries and simple supercapacitors,” Yi Cui, an Assistant Professor at Stanford told Reuters.
 
The technology has exciting applications because of its high power, low cost, light weight and high efficiency and it could appear in the commercial market in just a short time.

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