Bio-inspired poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate)[email protected] electrospun nanofibers for lithium-sulfur batteries

Add time:09/07/2019    Source:sciencedirect.com

The drive for commercializing high energy density lithium-sulfur batteries is leading to the development of various material architectures for suppressing the notorious “shuttle effect” of intermediate polysulfides and improve cycle life. Inspired by the structural features of plant roots protecting soil erosion, herein, we report a novel strategy to use poly(3,4-ethylenedioxythiophene):polystyrene [email protected] electrospun nanofibers as flexible additives in the cathode of lithium-sulfur batteries to trap lithium polysulfides and suppress their dissolution into liquid electrolyte. The nanofibers consist of in-situ grown sulfur particles, embedded inside porous polyacrylonitrile shell and coated with poly(3,4-ethylenedioxythiophene):polystyrene sulfonate. The electrochemical performance of lithium-sulfur batteries using poly(3,4-ethylenedioxythiophene):polystyrene [email protected] nanofiber incorporated sulfur hybrid cathode shows a significantly better cycle stability and excellent rate capability compared to the bare sulfur cathode owing to the adsorption effect of the nanofibers. Even after 500 cycles at a high rate of 0.5 C, the capacity retention is approximately 41% of the initial capacity with average columbic efficiency above 94%. This work offers a novel approach to fabricate viable lithium-sulfur batteries and possibly pave the way to further develop innovative flexible additives for practically applicable lithium-sulfur batteries.

We also recommend Trading Suppliers and Manufacturers of sulphuric acid, lead salt (cas 15739-80-7). Pls Click Website Link as below: cas 15739-80-7 suppliers

Prev:Activation of fulvic acid-like in paper mill effluents using H2O2/TiO2 catalytic oxidation: Characterization and salt stress bioassays
Next:Anchored monodispersed silicon and sulfur nanoparticles on graphene for high-performance lithiated silicon-sulfur battery)