개선된 고상 합성법을 통한 LiNi 0.5 Mn 1.5 O 4 양극재 연구

Abstract

In this study, LiNi 0.5 Mn 1.5 O 4 was synthesized from various raw materials, including NiO, Ni 2 O 3 , MnO 2 , and Mn 3 O 4 . An improved solid-phase synthesis method was then used to reduce impurities through uniform mixing via bead milling and to achieve a consistent secondary particle shape and distribution through spray drying. The LiNi 0.5 Mn 1.5 O 4 was obtained by selecting materials optimized for rate capability and by applying an improved synthesis process. X-ray diffraction and scanning electron microscopy analyses confirmed that LiNi 0.5 Mn 1.5 O 4 successfully synthesized primary and secondary particles. This result showed that LiNi 0.5 Mn 1.5 O 4 , when subjected to an improved solid-phase synthesis, reduces production costs ,enhances its commercial value, and can be applied to lithium-ion secondary batteries to achieve high energy density and high voltage. In short, LiNi 0.5 Mn 1.5 O 4 can be used as an efficient energy storage material.