Method for producing micron-scale superfine sodium chloride

The invention relates to a method for producing micron-scale superfine sodium chloride. The method comprises the following steps of (1) loading of sodium chloride; (2) feeding of sodium chloride; (3)impacting and crushing of sodium chloride; (4) cyclone separation; and (5) dedusting. The present invention further provides a positive electrode material for a sodium nickel battery. The micro-scaleparticle size of the sodium chloride is favorable for increasing the contact area between an electrolyte and the nickel powder, the redox reaction rate is accelerated in the charging and discharging process, and the rate performance of the battery is improved. 本发明涉及一种生产微米级超细氯化钠的方法，包括如下步骤：(1)氯化钠上料；(2)氯化钠进料；(3)氯化钠冲击粉碎；(4)旋风分离；(5)除尘。本发明还保护一种钠镍电池正极材料。本发明的氯化钠微米级的粒径有利于增大与电解质和镍粉的接触面积，加快充放电过程中的氧化还原反应速率，提升电池的倍率性能。