s. Lithium iodide is used as a
solid-state electrolyte for high-temperature
batteries. It is also the standard electrolyte in
artificial pacemakers due to the long cycle life it enables. The solid is used as a
phosphor for
neutron detection. It is also used, in a complex with
Iodine, in the
electrolyte of
dye-sensitized solar cells. In
organic synthesis, LiI is useful for cleaving C-O bonds. For example, it can be used to convert
methyl esters to
carboxylic acids: : Similar reactions apply to
epoxides and
aziridines. Lithium iodide was used as a
radiocontrast agent for
CT scans. Its use was discontinued due to
renal toxicity. Inorganic iodine solutions suffered from
hyperosmolarity and high viscosities. Current
iodinated contrast agents are
organoiodine compounds. It is also useful in MALDI imaging
mass spectrometry of
lipids by adding lithium salts to the matrix solution. ==See also==