Lithium sulfide and preparation method and application thereof

• Main Authors: ZHANG ZHIHUA, ZHOU YONGJIAN, SHENG MAOHUA, ZHAO LIDA, ZHOU JIANGUANG
• Format: Patent
• Language: Chinese; English
• Published: 06.02.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides lithium sulfide and a preparation method and application thereof, and the preparation method comprises the following steps: spraying an atomized lithium source into a sulfur source for reaction to obtain a crude product; and carrying out spray drying on the crude product to obtain the lithium sulfide. The preparation method is high in controllability, the problem that the reaction speed is too high in the initial reaction stage can be solved, lithium sulfide which is small in particle size and can be directly put into use is obtained, secondary grinding and refining are not needed, the preparation time is shortened, and the conversion efficiency is improved. 本发明提供了一种硫化锂及其制备方法与应用，所述制备方法包括如下步骤：将雾化的锂源喷入至硫源中进行反应，得到粗品；将所述粗品进行喷雾干燥，得到所述硫化锂。本发明所述制备方法可控性高，能够防止反应初期的反应速度过快的问题，得到粒径小且能够直接投入使用的硫化锂，无需二次研磨细化，缩短了制备时长，提升了转化效率。