Wire-Shaped 3D-Hybrid Supercapacitors as Substitutes for Batteries

Highlights The flexible 3D porous structure with a large surface area provides pathways for rapid ion/electron transport and ion diffusion as well as numerous electroactive sites. The wire-shaped supercapacitor exhibits a high energy density of 153.3 Wh kg −1 and a power density of 8810 W kg −1 . The hybrid device demonstrates excellent durability under various mechanical deformations.