Stretchable Battery

Two desirable properties of wearable health monitors are a comfortable fit, and wireless rechargability. Electrical engineers at the University of Illinois, Urbana-Champaign have advanced both with an array of lithium ion cells embedded in stretchable silicon with a similar sheet of resonators that allows wireless recharging. Designing the stretchiness was not a snap.   MORE

Image Credit:  Yonggang Huang and MIT Technology Review