The study of the prospects for the use of Li_0.15Sr_0.85TiO₃ ceramics

The paper presents the results of a study of structural characteristics, as well as the possibility of using Li_0.15Sr_0.85TiO₃ ceramics as anode materials for lithium-ion batteries. It has been established that the structure of ceramics is an accumulation of dendritic agglomerates consisting of spherical and spherical nanoparticles with a developed specific surface. According to X-ray phase analysis, the ceramic crystal structure is a mixture of two phases: cubic SrTiO₃ and orthorhombic Li₂Ti₃O₇, with a predominance of the SrTiO₃ phase. During the life tests, it was found that in the case of the 1000 mAh/g mode, the resource number of cycles is close to 480–500 cycles, which is typical for most silicon-based structures that are standardly used as the basis for lithium-ion batteries. An increase in the charging capacity to 1500 mA h/g leads to a slight decrease in the resource lifetime—420 cycles to a decrease in capacity below 80%. Based on the conducted tests of life tests, the prospects of using ceramics based on Li_0.15Sr_0.85TiO₃ as the basis for lithium-ion batteries have been established.