[PDF] Top 20 Ti4O7 Layer Coated Sulfur Composite as High-Performance Cathode Material for Lithium-Sulfur Battery

... composite exhibits discharge capacity value of 1205 mAh g -1 , which is much higher than the pure sulfur (802 mAh g -1 ). Second, in terms of the shape of the profiles, it can be seen that the discharge ... See full document

... electrochemical performance of sulfur/GHCS cathode in high current ...a high rate at 3 C is observed to be 425 mAh g −1 , which is five times larger than the value (81 mAh g −1 ) from ... See full document

... [8]. High resistance of sulfur and lithium polysulfides formed during cycling is one of the most ...a high self-discharge ...of lithium polysulfides in liquid electrolyte and redox ... See full document

... the sulfur, indicating a loosely packed nanostructure on the ...CNT layer may affect the enhancement of the electrochemical performance of the composite ... See full document

... Currently, lithium–sulfur batteries suffer from several critical limitations that hinder their practical application, such as the large volumetric expansion of electrode, poor conductivity and lower ... See full document

... the cathode area and suppressing their transport towards the anode side (shuttle ...S/GNS composite and GPE on the cell performance, its rate capability performance was ...the high-rate ... See full document

... sublimed sulfur, and the mixture was given ultrasonication treatment to achieve complete ...The sulfur content of this composite up to ...the sulfur material and 3D CNT foam in a sealed ... See full document

... attributes, Lithium/Sulfur (Li/S) batteries are typically hindered by its inherently low material-utilization and poor cycle ...S cathode, not withholding the development of numerous ... See full document

... a high potential, and the oxidation peak also shifted, which suggested the formation of solid electrolyte interphase membrane on the cathode ...the battery cycle is more stable than those in ... See full document

... the performance of Li-S batteries. In this work, carbon coated Sulfur / polymer composite was prepared by solvent less ...prepared composite was investigated using XRD, RAMAN and ...the ... See full document

... for sulfur impregna- tion, which are prepared by KOH activation of organic aerogel (RC-500) at a low ratio of 1:1 (as shown in Scheme ...a high surface area (1765 m 2 g −1 ), large pore volume ...ACA-500-S ... See full document

... The lithium-sulfur battery is presently being reconsidered as a good candidate to reach both goals upon further ...[1-3]. Sulfur is the active cathode material with a theoretical ... See full document

... the sulfur conductive problem is the key to improve the performance of lithium sulfur ...improve sulfur electrode porosity, but also adsorb more sulphur, in addition play a catalytic ... See full document

... of sulfur cathode in lithium sulfur (Li-S) ...electrochemical performance of the cell were ...active material to the current collector, and reduces electrical resistivity of the ... See full document

... polymeric sulfur composites that have a number of valuable properties that will increase the world demand for elemental ...of sulfur utilization is the development of new technologies for producing ... See full document

... for sulfur cathode toimprove the conductivity, the capacity and cycling durability, owing to its high electrical conduction accompanied by a high stability [7] and high sulfur ... See full document

... (DEC)-ethyl methyl carbonate (EMC) mixture (1:1:1). Micro-porous polypropylene separator was used in those cells. The cell preparation was carried out in an Ar-filled dry box. The charge/discharge cycles for assembled ... See full document

... discharging, lithium polysulfides generated at the cathode dissolve by ion-dipole interaction between lithium ions and DME solvents, which implies that lithium polysulfides are solvated by ... See full document

... elemental sulfur benefits from advantages of its natural abundance, low cost and environmentally ...of sulfur phase, lithium polysulfide shutting between the electrodes, large volumetric change ... See full document

... active material within nanostructure, devel- opment of novel electrolytes, and binder modification ...between cathode and separator can significantly improve the capacity retention by trapping polysulfides ... See full document