A high energy density and high rate capability flexible supercapacitor based on electro-spun highly porous SnO₂@carbon nanofibers

Abstract

<p>The unsatisfactory energy density of the present state-of-the-art materials remains the main challenge for commercial utilization of supercapacitor devices. Therefore, the development of highly active electrode materials with improved energy...</p>

Polymer-Derived Electrospun Co3O4@C Porous Nanofiber Network for Flexible, High-Performance, and Stable Supercapacitors

“…However, a drastic morphological transformation was observed for the annealed electrospun nanofibers. The nanofibers with high aspect ratio were obtained due to the equal weight ratio of the polymer to the metal precursor . The diameter distribution charts for electrospun PVP, Co­(acac) 2 –PVP composite, and Co 3 O 4 @C nanofibers are given Figure S2a–c.…”

“…The broken fiber structure or grain particles were detected, plausibly due to the phase separation between PVP and metal oxide with the continuous loss in fiber morphology during the annealing process. The evolution of nanofibers was completely based on chemical interaction of polymers and metal oxide precursor . The strong interaction between PVP and metal oxide through H-bonding results in the formation of Co 3 O 4 @C nanofiber .…”

Redox and conductive underwater adhesive: an innovative electrode material for convenient construction of flexible and stretchable supercapacitors

“…[1][2][3] In this regard, exible supercapacitors (SCs) have attracted wide research interest due to their fast charge/discharge rate, high power density, excellent stability and long cycle life. [4][5][6][7][8] To date, different types of exible/stretchable SCs have been reported with the aim of promoting exibility, stability, capacity and construction via the meticulous design of current collectors or electrode active materials. [9][10][11][12] For example, exible current collectors were constructed by depositing gold lms on so substrates.…”

Preparation of Electrode Materials Based on Carbon Cloth via Hydrothermal Method and Their Application in Supercapacitors

“…With the further development of society, there has been a greater pursuit of wearable and strong plasticity flexible electrodes. The preparation of carbon cloth offers the advantages of low cost, good flexibility, and good conductivity, and, as a substrate, has been hailed as a high-performance electrode material [ 22 , 23 , 24 , 25 , 26 ].…”