Structural and Morphological Changes of NCTA Synthesized by Co-Precipitation at Different Annealing Temperatures

Abstract

Lithium-ion batteries (LIBs) have remained popular since their introduction to the global market due to their high efficiency and energy density. This study focuses on synthesizing LiNi_0.69Co_0.2Ti_0.1Al_0.01O₂ (NCTA) using the co-precipitation method, with the aim of overcoming the challenge of achieving a pure, single-phase material essential for high-performance LIBs. One of the key challenges is cation mixing, particularly between lithium and nickel ions, which disrupts the structural integrity during charge-discharge cycling. Therefore, by controlling the synthesis parameters, especially the calcination temperature, it is possible to minimize impurities, reduce cation mixing, and optimize battery performance.