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Researchers Create Lithium-Ion Battery that Can Stretch to 300% its Original Size

Posted February 26, 2013 3:35 PM

From ExtremeTech:

Researchers at Northwestern and the University of Illinois at Urbana-Champaign have created a stretchable, flexible lithium-ion battery that can be recharged wirelessly. This is big news for wearable computing, roll-up displays, and implantable devices - all of which have been desperately awaiting a flexible, stretchy power source.

Historically, batteries, with electrodes made out of large slabs of graphite and metal, are about as inflexible as it gets. Bend a laptop battery and, if you're strong enough, it will break (and possibly explode, so please don't try it at home). There's also a toxic, liquid electrolyte in most batteries, which generally means you want a hard, rugged chassis to stop any leakages.

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