Wearable electronics: Superstretchable, supercompressible supercapacitors

Flexible, wearable electronics require equally flexible, wearable power sources. Scientists have now introduced an extraordinarily stretchable and compressible polyelectrolyte which, in combination with carbon nanotube composite paper electrodes, forms a supercapacitor that can be stretched to 1,000 percent in length and compressed to 50 percent in thickness with even gaining, not losing capacity.