Chemical synthesis and characterization of lithium orthosilicate (Li4SiO4)

A solution based wet chemistry approach has been developed for synthesizing Li4SiO4 powders at moderate temperatures of 500°C. LiOH·H2O and LiNO3 have been used as starting materials for synthesizing this material in the present study. The phase evolution behavior, surface area and morphology of the as-prepared and heat treated powders generated from both LiOH·H2O and LiNO3 have been studied and compared in this work. The feasibility of synthesizing a Li4SiO4LiNi0.75Co0.25O2 based electrolyte–electrode composite material using this chemical approach is also discussed and demonstrated.