Electrospinning-Chemistry Strategy for Self-Supporting Perovskite Oxide Fabric Electrodes towards High-Capacitance Supercapacitors

• Self-supporting perovskite oxide fabric electrodes are fabricated through an electrospinning-chemistry strategy. • Perovskite oxide fibers display micro-ribbon morphology. • Fabric electrodes show large SSA (37.2 m 2 g −1 ) and superior O 2− diffusion property. • Fabric electrodes exhibit improved electrochemical performance than that of powder electrodes. Perovskite-type oxides are well-known as promising electrode materials toward supercapacitors. We report an electrospinning-chemistry strategy to continuously fabricate perovskite oxide fabric with ribbon morphology. Interestingly, the perovskite oxide fabric exhibits good self-supporting property. Benefiting from the continuous fibrous network structure and large specific surface area (37.2 m 2 g −1 ), the electrolyte ions diffusion in perovskite oxide fabric electrode is rapid, resulting in high mass capacitance of 862 F g −1 at 1 A g −1 . This work offers an effective electrospinning-chemistry strategy towards perovskite oxide-based fiber electrodes, greatly important for the development of wearable electronics.