This page discusses lithium carbonate's role in lithium batteries, produced through a reaction with carbon dioxide. It explains the common ion effect, where adding a common ion decreases a compound's ...This page discusses lithium carbonate's role in lithium batteries, produced through a reaction with carbon dioxide. It explains the common ion effect, where adding a common ion decreases a compound's solubility, illustrated by adding calcium nitrate to calcium sulfate. This shifts equilibrium, causing precipitation. Additionally, calculations show how common ions, like hydroxide with zinc hydroxide, affect ion concentrations in solutions.