The synthesis of LiMn_2O_4 by the glycine method

Lithium manganese oxide compounds were synthesized by the glycine method.The composition and structure of the lithium manganese glycine precursors,the synthesis mechanism of lithium manganese oxide compounds were studied by FT-IR,NMR and TG/DTA.The LiMn2O4 samples were studied by XRD.The lithium ions and manganese ions in the precursor were mixed at atomic level by the glycine method at low temperature,the spinel LiMn2O4 could obtain at about 356 ℃.The sample sintered at 400 ℃ was pure phase spinel LiMn2O4.The 0.2 C initial specific discharge capacity of LiMn2O4 sample sintered at 750 ℃ was 119.8 mAh/g.After 20 cycles,the specific discharge capacity was 118.4 mAh/g.