Lithium hydroxide can be used as a developing agent for spectroscopic analysis, as an lubricant, as an additive for alkaline battery electrolytes, which can increase the capacity by 12% to 15% and extend the service life by 2 to 3 times.
It can be used as an absorber for carbon dioxide to purify the air inside submarines.
The chemical equation is: 2LiOH(s) + CO2(g) = Li2CO3(s) + H2O(l).
It is used for preparing lithium salts and lithium-based lubricating grease, as the electrolyte of alkaline batteries, as the absorbent liquid of bromine lithium refrigeration machines, etc.; it is used in petroleum, chemical industry, light industry, nuclear industry, etc. When used in alkaline batteries, the aluminum content should not exceed 0.06% and the lead content should not exceed 0.01%. It is used as an analytical reagent, a photographic developer, and also for the manufacture of lithium; it should be used as a raw material for the production of lithium compounds. It can also be used in metallurgy, petroleum, glass, ceramics and other industries.