Flexible all-organic composites with ultrahigh energy storage density for wearable electronics

A novel approach to fabricate flexible energy storage ultracapacitors is introduced in this work. Dielectric polymers have been used in the fabrication of energy storage capacitors. To improve the energy storage performance of the dielectric polymers, composite approach has been extensively studied in last two decades with the focus on inorganic-polymer composites. Here. composites of polymer and organic small molecules are studied. The all-organic composites are flexible, even better than the dielectric polymer itself. More interestingly, the energy storage performance is enhanced. For example, energy storage density of the all-organic composites of P(VDF-CTFE) and silane is more than 64% higher than P(VDF-CTFE) itself. All these make the all-organic composites great candidates for the development of flexible energy storage devices for wearable electronics.