Electrochemical characteristics of spinel phase LiMn2O4-based cathode materials prepared by the Pechini process - Influence of firing temperature and dopants

In the past ten years, LiMn2O4-based spinels have been extensively studied as positive electrode materials for lithium-ion batteries. Our ongoing investigations have shown that the Pechini process, a low temperature synthetic method that often yields inorganic oxides of excellent phase purity and well-controlled stoichiometry, is very effective for preparing LiMn2O4-based cathode materials. It also has been shown that different firing temperatures and the selective doping of LiMn2O4 both produce materials with different electrochemical characteristics that merit further exploration.