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Stretchable Lithium-Ion Battery Could Power Athletes & Patients
5/1/2013

This is the design for a stretchable Li-ion battery that sandwiches electrode disks connected via self-similar, S-shaped metal wires between a pair of thin silicon substrates.   (Source: Nature.com)
This is the design for a stretchable Li-ion battery that sandwiches electrode disks connected via self-similar, S-shaped metal wires between a pair of thin silicon substrates.
(Source: Nature.com)

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Elizabeth M
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Interesting innovations
Elizabeth M   5/1/2013 7:36:27 AM
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It's cool to see more work being done in this area, Cabe. I've covered some of the innovations in these types of materials and energy sources myself and I find them quite useful technology developments. Some of the energy-harvesting materials in particular that don't even use batteries are interesting as well: http://www.designnews.com/author.asp?section_id=1386&doc_id=262437

NadineJ
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Re: Interesting innovations
NadineJ   5/1/2013 10:47:47 AM
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The first time I saw a flexible LED screen, I was blown away.  This is even more interesting.  This heavily influenced by textiles construction.  Genius.

How much power is this expected to put out? 

Elizabeth M
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Re: Interesting innovations
Elizabeth M   5/1/2013 10:59:29 AM
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True, Nadine, all these emerging flexible technologies that used to be static and hard are quite impressive. I can't wait to see them all being widely used in the market.

Rob Spiegel
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Re: Interesting innovations
Rob Spiegel   5/1/2013 4:02:53 PM
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This technology reminds me of some of the technology imagined in the movie Vanilla Sky -- where everything had a skin of personal interactive advertising. I would imagine there is a wide range of applications for this flexible technology.

Charles Murray
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Re: Interesting innovations
Charles Murray   5/1/2013 9:30:53 PM
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This is one of those developments that could have an endless number of applications. I could see this being used in "powered clothing."

Elizabeth M
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Re: Interesting innovations
Elizabeth M   5/2/2013 7:08:28 AM
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Definitely, Chuck, this could fit right in with alot of the work being done in this area. It could even be paired up with energy-harvesting fabrics to create a super-power stretch suit.

AnandY
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Gold
Limitation
AnandY   5/2/2013 8:44:22 AM
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Now researchers from Northwestern University and the University of Illinois have revealed work on a lithium-ion battery that can stretch up to three times its original size.


Its a great technology that lithium-ion batteries can be stretched. As mentioned that batteries can be stretched up-to three times, is this stretching operation is reversible? Is there a limit on number of times battery can be stretched?

William K.
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Platinum
The stretchable battery lifetime.
William K.   5/2/2013 10:08:46 AM
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It looks like the stretchable battery would have a lifetime limited by the wear between the different materials as it is stretched and released. That may not be a problem for some uses, but it must absoletely be considered as the product is developed. I have seen a few membrane keypads that have just worn away and no longer function on some keys, and so it is clear that wherever there is motion there is wear. There are ways to extend the time until that wear causes failures, but the fixes only can help if they are included. So while there is a solution it is not automatic, it would need to be intentionally included.

But now the whole concept and realization of an actual stretchable battery is certainly a great achievement, no doubt about that.

Jim_E
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How does this affect....
Jim_E   5/2/2013 10:10:58 AM
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I wonder how this affects the seemingly inane desire of Lithium-Ion batteries to catch fire....

PAULHBERG
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Iron
Re: Interesting innovations
PAULHBERG   5/2/2013 10:24:02 AM
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This technology is ALL well and good. But what about Micro-shorting in the Lithium-ion Battery.  I don't believe many have seen the result of a micro-shorted Lithium-ion Battery.  Would be VERY BAD if all of a sudden your pants EXPLODED.  Just something to consider is all.

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