Lithium-oxygen(Li-O_(2)) batteries are considered as the next generation for energy storages systems due to the higher theoretical energy density than that of Li-ion batteries. However, the high charge overpotential c...Lithium-oxygen(Li-O_(2)) batteries are considered as the next generation for energy storages systems due to the higher theoretical energy density than that of Li-ion batteries. However, the high charge overpotential caused by the insulated Li_(2)O_(2)results in low energy efficiency, side reaction from electrolyte and cathode, and therefore poor battery performance. Designing noble metal-based catalysts can be an effective strategy to develop high-performance Li-O_(2)batteries with low charge overpotentials and outstanding cycle stability. However, the charge mechanism for noble metal-based catalysts is not clear and even contradictory. Herein, several charge mechanisms of Li_(2)O_(2)are first discussed. Subsequently, the possible charge processes of Li-O_(2)batteries with noble metal-based catalysts are illustrated. In addition, the future development for noble metal-based catalysts is outlined.展开更多
The reliability of energy systems is strongly influenced by the prevailing climate conditions.With the increasing prevalence of renewable energy sources,the interdependence between energy and climate systems has becom...The reliability of energy systems is strongly influenced by the prevailing climate conditions.With the increasing prevalence of renewable energy sources,the interdependence between energy and climate systems has become even stronger.This study examines the impact of different spatial resolutions in climate modeling on energy grid reliability assessment,with the Texas interconnection between 2033 and 2043 serving as a pilot case study.Our preliminary findings indicate that while low-resolution climate simulations can provide a rough estimate of system reliability,high-resolution simulations can provide more informative assessment of low-adequacy extreme events.Furthermore,both high-and low-resolution assessments suggest the need to prepare for severe blackout events in winter due to extremely low temperatures.展开更多
基金the financial support from the National Natural Science Foundation of China (No. 12175098)Hundred Talents Sailing Project of Jiangxi Province, China。
文摘Lithium-oxygen(Li-O_(2)) batteries are considered as the next generation for energy storages systems due to the higher theoretical energy density than that of Li-ion batteries. However, the high charge overpotential caused by the insulated Li_(2)O_(2)results in low energy efficiency, side reaction from electrolyte and cathode, and therefore poor battery performance. Designing noble metal-based catalysts can be an effective strategy to develop high-performance Li-O_(2)batteries with low charge overpotentials and outstanding cycle stability. However, the charge mechanism for noble metal-based catalysts is not clear and even contradictory. Herein, several charge mechanisms of Li_(2)O_(2)are first discussed. Subsequently, the possible charge processes of Li-O_(2)batteries with noble metal-based catalysts are illustrated. In addition, the future development for noble metal-based catalysts is outlined.
文摘The reliability of energy systems is strongly influenced by the prevailing climate conditions.With the increasing prevalence of renewable energy sources,the interdependence between energy and climate systems has become even stronger.This study examines the impact of different spatial resolutions in climate modeling on energy grid reliability assessment,with the Texas interconnection between 2033 and 2043 serving as a pilot case study.Our preliminary findings indicate that while low-resolution climate simulations can provide a rough estimate of system reliability,high-resolution simulations can provide more informative assessment of low-adequacy extreme events.Furthermore,both high-and low-resolution assessments suggest the need to prepare for severe blackout events in winter due to extremely low temperatures.
