Dielectric and Thermal Transport Properties of Lithium Manganate (LiMn₂O₄) for Use in Electrical Storage Devices

Abstract

Lithium manganate (LM) has been extremely well established as a material for applications in electronic devices such as personal organizers, pagers, personal computers, facsimile machines, portable stereophonic equipment, and cellular phones. LM nanoparticles have been prepared via the sol-gel method through a stoichiometric quantity of Manganese acetate tetrahydrate, Lithium hydroxide monohydrate, and Citric acid anhydrous taken in 1:2:3 ratios. The calcination was done with the resulting powder samples at different temperatures of 600 °C and 700 °C. The LM powder samples were utilized for dissimilar characterizations for FTIR spectral analysis exhibiting the presence of functional groups. PXRD result illustrates that the “h, k, l” values are well matched by the earlier reported values. The dielectric properties are calculated at different temperatures from 50 °C to 350 °C. When the calcination temperature increases the conductivity of the sample also increases. The dielectric loss and dielectric constant confirm the normal dielectric behavior of the material. XPS results show the measured empirical formula, elemental composition, and electronic state of the elements in a material. Photoacoustic spectroscopy analysis of the title compound values makes it a promising material for Li-ion battery and electrical storage devices applications.