| 초록 |
Lithium sulfur battery has attracted tremendous attention of globalenergy industry because of its huge theoretical capacity and energy density.However, continuous capacity fading with charge and discharge process hasinhibited its commercialization. Lithium sulfur battery’s poor cycle stabilityis caused of elution of lithium polysulfide which is from active material oflithium sulfur battery. Herein, polythiophene-polyethyleneglycol basedcross-linked polymer coated carbon-sulfur composite were prepared for cathodeof lithium sulfur battery. Dual-conducting polymer coating lowered resistanceof coating layer and polar PEG moiety chemically adsorb lithium polysulfide.From this strategy, coated carbon-sulfur composite showed enhancedelectrochemical performances. |
