SYNTHESIS OF AN LIMPO<SB>4</SB> COMPOUND AND USE AS AN ELECTRODE MATERIAL IN A LITHIUM ACCUMULATOR

摘要

The LiMPO4 compound is synthesized by reacting, at a temperature less than or equal to 350°C, a compound of general formula XMPO4 nH2O, where X represents a radical chosen from -NH4 and -H and M is a transition metal chosen from Co, Ni and Mn, with a source of lithium such as lithium nitrate. In addition, the XMPO4 nH2O compound has a particular morphology, in the form of platelets, that is retained during the reaction between the two precursors. The LiMPO4 compound thus synthesized is advantageously used as an active material in an electrode for a lithium accumulator.