1. Lithium hydroxide can be used as the expansion agent and lubricating oil for spectral analysis. The additive of alkaline battery electrolyte can increase the 12%~15% of electric capacity and increase the service life 2~3 times. 2. Lithium hydroxide can be used as a carbon dioxide absorbent, can purify the air inside the submarine. 3. Lithium hydroxide Used for lithium and lithium-based grease, alkaline battery electrolyte, lithium bromide refrigerator absorption liquid, etc., petroleum, chemical industry, light industry, nuclear industry and so on. 4. Lithium hydroxide Used as analytical reagent, photographic reagent, and also used in the manufacture of lithium; can also be used in metallurgy, petroleum, glass, ceramics and other industries.