具低過電位鋰氧電池之新穎陰極材料開發

In recent years, environmental issues have gradually received attention. In order to solve the carbon dioxide raised by the greenhouse effect, lithium/lithium carbon dioxide batteries were born. It has the advantages of a lightweight, high specific capacitance, and energy density. Because of its high specific energy density, the electric capacity is 5 to 10 times larger than that of traditional lithium-ion batteries. Also, the high content of sodium metal on the earth makes the cost lower than that of lithium metal. This research will reduce the cost of carbon dioxide batteries and modify multi-wall carbon nanotubes with highly active ruthenium nanoparticles. Ruthenium nanoparticle is the product of the catalyst that will effectively catalyze the decomposition and discharge during charging, increase its cycle life and reduce its overpotential, and is modified with high conductivity and high thermal stability carbon nanotubes to improve the characteristics of the high body surface Deposition of discharge products. This study also compares the performance of lithium metal and sodium metal as the battery negative electrode, and analyzes the comparison of cost and performance, and expects to replace lithium metal with low-cost sodium metal as the benchmark for the next generation of carbon dioxide batteries. In this study, the same cathode catalyst was applied to a lithium/sodium carbon dioxide battery and it was expected that the number of cycles would be greater than 100 at a current density of 100 mA/g. It is also proved in the performance comparison of sodium/lithium carbon dioxide battery that the performance of sodium carbon dioxide battery is no less than that of lithium carbon dioxide battery, so sodium carbon dioxide battery has great potential for development and research, and it is a new generation of green energy with low cost and high theoretical energy density. Energy storage system.