USTC has made new progress in the applications field of lithium-sulfur battery
Dec 22, 2015
Lithium-sulfur batteries is the secondary battery consists of sulfur as the cathode material, lithium metal sheet as an anode material,is considered to be one of the high-energy secondary lithium battery system is now the most research value and application prospects. However, current, lithium-sulfur batteries are still many problems to be solved, such as low cycle life, low active substance utilization, sulfur cathode material and discharge products and poor electrical conductivity. Researchers from the low price of commercial powdered sulfur, selenium departure,Based on the two binary phase diagram,and compound with pre-prepared porous carbon,to get different proportions sulfur-rich S1-xSex / C (x ≈0.1, 0.08, 0.06, 0.05) complexes.This study not only reveals a stable mechanism of selenium sulfide solid solution, and foundation for further research to explore other new lithium-sulfur battery cathode material.
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