Story URL: http://news.medill.northwestern.edu/chicago/news.aspx?id=220941
Story Retrieval Date: 4/19/2014 2:01:41 AM CST
Batteries don’t have to be rigid anymore. Innovators from Northwestern University and the University of Illinois at Urbana-Champaign are stretching lithium-ion batteries to the max. The battery can flex up to three times its size and can power health monitoring devices without any wires.