Synthesis of LiCo_0.94Mg_0.06O₂: a promising material with high dielectric and microwave absorption performance

In this work, we initially report dielectric and microwave absorption properties of LiCo_0.94Mg_0.06O₂ with different sintering temperatures. Further, we characterize and analyze phase composition and microstructure of LiCo_0.94Mg_0.06O₂, which was fabricated using a solid-state reaction. The results show that dielectric properties of LiCo_0.94Mg_0.06O₂ composites can be controlled by shifting sintering temperature. The dielectric properties of LiCo_0.94Mg_0.06O₂ composites are ideal at 900 °C and remain stable with the extension of sintering time. The real and imaginary part of this composite is approximate 16 and 4, respectively. The calculated reflection loss of the LiCo_0.94Mg_0.06O₂ composites exhibited a remarkable microwave absorption performance. The minimum reflection loss value of the LiCo_0.94Mg_0.06O₂ composites is − 50.1 dB at a thickness of 2.1 mm. Consequently, this study opens up new way for absorbent, expands the applications of LiCo_0.94Mg_0.06O₂ into new areas beyond active cathode material, and will probably attract the attention of materials scientist.