Structural and electronic property of AlPO4 modified LiMn2O4 material for Li-ion battery application

Abstract

In the present scenario, the Li-ion batteries are realistic energy storage systems in several applications due to their simultaneous high energy and high-power densities. In this work we have successfully synthesized AlPO 4 coated LiMn 2 O 4 material by chemical deposition solution prosses followed by high sintering temperature. The physical properties of bare LiMn 2 O 4 and AlPO 4 -coated LiMn 2 O 4 materials are investigated by XRD, SEM, and EDS analyser, and electronic property were investigated by impedance spectroscopy analyser . The result demonstrates that the bare LiMn 2 O 4 nano material shows an electronic conductivity of 4.304 × 10 -4 Ω −1 cm −1 at room temperature whereas 3 wt% AlPO 4 coated LiMn 2 O 4 shows electronic conductivity 9.493 × 10 -4 Ω −1 cm −1 Thus, result shows that by coating with small amount of AlPO4 the electronic conductivity is considerable increased as compared to the bare LiMn2O4 it may be a good alternative for the existing cathode material, making it suitable for Li-ion battery application.