| 摘要 |
PURPOSE: A manufacturing method of a lamellar positive active material is provided to solve a problem with regard to a low reversible capacity due to the application of a previous LiMn2O4 and electrochemical instability. CONSTITUTION: A manufacturing method of a lamellar positive active material comprises a step of manufacturing a mixed solution including a lithium salt, cobalt salt, and a transition metal salt; a step of dissolving the mixture solution into distilled water; a step of forming a precursor from the dissolved mixed solution; a step of drying the precursor; and a step of mixing and pulverizing an amorphous precursor generated during the drying process with a lithium salt, pulverizing the mixture, and heat-treating it; and a step of pulverizing the heat-treated amorphous precursor powder to form LNCM (LiNi1/3Co1/3Mn1/3O2). |
