Characteristics of a gold-doped electrode for application in high-performance lithium-sulfur battery

Bulk sulfur incorporating 3 wt% gold nano-powder is investigated as possible candidate to maximize the fraction of active material in Li-S battery cathode. The prepared via simple mixing with molten at 120 °C, quenching room temperature, and grinding. Our comprehensive study reports relevant electrochemical data, advanced X-ray computed tomography (CT) imaging positive negative electrodes, a thorough structural morphological characterization S:Au 97:3 w/w composite. This cathode exhibits high rate capability within range from C/10 1C, maximum capacity above 1300 mAh gS?1, retention between 85% 91% after 100 cycles 1C C/3 rates. novel formulation enables composite film 78 wt%, an loading 5.7 mg cm?2, electrolyte/sulfur (E/S) ratio 5 ?L mg?1, which lead areal 5.4 cm?2. CT micro- nanoscale reveals microstructural features electrode that favor fast conversion kinetics battery. Quantitative analysis distribution porous displays electrodeposition during initial cycle may trigger activation process cell leading improved performance. Furthermore, characteristics lithium anode separator upon galvanostatic test prolonged over 300 2C rate.