Synthesis of lithium-manganese oxide spinel in hydrothermal conditions

Abstract

Abstract Lithium-manganese oxide spinel LiMn2O4 was synthesized in hydrothermal conditions (400°C, 20 MPa) in the course of thermovaporous treatment mixtures of MnO2 and LiOH/or Li2CO3. The conditions of synthesis of the spinel as monophase product were determined. The obtained product has been characterized by means of various physical and chemical methods. The spinel has been used for manufacturing cathodes of rechargeable lithium cells. The cells discharged in the potential range 2.8-3.5 V. The specific capacity was 100-140mAh/g.