钠电池的环保性如何？

How is the environmental protection of Sodium-ion Battery?    

钠离子电池是绿色低碳、全程环保的清洁能源电池，环保属性远超传统电池。从原材料来看，钠电池核心材料不含钴、镍、铅、汞、镉等有毒有害重金属物质，原材料无毒无害、无污染物残留；从生产过程来看，钠电池生产工艺清洁，无高污染、高排放工序，废气废水排放量极低；从回收端来看，废旧钠电池可实现正负极材料、金属基材、电解液的高效回收再生，资源利用率高、二次污染小。对比铅酸电池的重度污染、锂电池的重金属耗材，钠电池全生命周期绿色环保，符合双碳战略和绿色产业发展要求。

Sodium-ion Battery is a green, low-carbon and full-process environmentally friendly clean energy battery, and its environmental protection attribute is far better than that of traditional batteries. From the perspective of raw materials, the core materials of sodium batteries do not contain toxic and harmful heavy metal substances such as cobalt, nickel, lead, mercury and cadmium, and the raw materials are non-toxic and harmless without pollutant residues; from the perspective of production process, the production process of sodium batteries is clean, without high pollution and high emission processes, and the emission of waste gas and waste water is extremely low; from the perspective of recycling end, waste sodium batteries can realize efficient recycling and regeneration of cathode and anode materials, metal substrates and electrolytes, with high resource utilization rate and small secondary pollution. Compared with the heavy pollution of lead-acid batteries and the heavy metal consumables of lithium batteries, sodium batteries are green and environmentally friendly throughout the whole life cycle, which meets the development requirements of the dual carbon strategy and green industry.