Research on Air Stability of Layered Metal Oxides for Sodium-ion Batteries
In recent years,as the shortage of traditional fossil fuels has become more apparent and environmental concerns have increased,countries around the world have reached a consensus on the need for new,clean energy sources.Sodium-ion batteries have emerged as one of the most promising technologies for large-scale energy storage,thanks to the wide availability of sodium in the Earth's crust and their relatively low cost.Among the many Na-ion cathode materials,transition metal oxides(NaxTMO2)have drawn significant attention from academia and industry due to their high energy density,similar preparation process to Li-ion cathode materials,and excellent low-temperature performance.However,researchers are currently focused on addressing challenges related to inhibiting material structure transformation during sodium ion removal/intercalation,protecting material interfaces during the cycle process,and improving material cycle performance.While little research has been conducted on the poor air stability of transition metal layered oxide in practical applications,this issue is critical for the large-scale industrial application of sodium-ion batteries.This paper summarizes recent research progress and solutions to this problem,while also offering insights into the future development of sodium-ion batteries.
sodium-ion batterylayered metal oxidescathode materialair stability
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