| 摘要 |
A method for manufacturing a cathode active material for a lithium secondary battery, according to the present invention, comprises: a lithium precursor; a transition metal precursor; and an organic acid containing a carboxyl group. The cathode active material is manufactured by thermally treating a precursor solution of which a chelation index (C.I) value is less than 1 and at least 0.5, wherein the chelation index is defined using the transmittance of a peak located in a wavenumber from 1,700 to 1,710 cm-1 and the transmittance of a peak located in a wavenumber from 1,550 to 1,610 cm-1 in the spectrum of Fourier transform infrared (FTIR) spectroscopy. |
