| 摘要 |
The present invention relates to: a cathode active material comprising a material capable of doping and dedoping lithium, and a coating layer formed on the surface of material capable of doping and dedoping the lithium, wherein the coating layer comprises a chemically cross-linked polymer, and a material formed by carbonization of a carbon precursor; a preparation method therefor; and an electrochemical device containing the cathode active material. |
