Lithium hydride, also known as lithium hydride, is an inorganic compound, chemical formula LiH, lithium hydride, white crystalline powder, insoluble in benzene, toluene, soluble in ether, easy deliquination. Lithium hydride is a salt-like hydride with a high melting point and is thermally stable. Thermal conductivity decreases with increasing temperature. It can exist stably in dry air at normal temperature, and decompose into hydrogen and lithium at high temperature. Lithium hydride is often used as a desiccant, hydrogen generation agent, etc. In organic synthesis, lithium hydride is also used as a shrinking agent, reducing agent, alkylation reagent, and is also a good hydrogen storage material. As a kind of clean energy, lithium hydride is also the negative electrode material of new energy chemical lithium batteries.