Phase Transformations in Li-Mn-O Spinels Synthesized by Sol-Gel Method
Abstract. Lithium-manganese spinels obtained by sol-gel method were studied by XRD, impedance spectroscopy, electric conductivity and thermogravimetric analysis (TGA). Heating of low-temperature spinels up to 630° C leads to the formation of spinels with lattice constants close to stoichiometric high-temperature spinels, which exhibit no phase transition around room temperature and have good electric conductivity.
Yvonne Andersson, Eric J. Mittemeijer and Udo Welzel
D. Lisovytskiy et al., "Phase Transformations in Li-Mn-O Spinels Synthesized by Sol-Gel Method", Materials Science Forum, Vols. 443-444, pp. 311-314, 2004