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 degreesC. 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. (C) 2001 Elsevier Science Ltd. All rights reserved.