Composite Negative Electrode Material and Method for Preparing Composite Negative Electrode Material, Negative Electrode Plate of Lithium Ion Secondary Battery, and Lithium Ion Secondary Battery

摘要

A composite negative electrode material, a method for preparing the composite negative electrode material, a negative electrode plate of a lithium ion secondary battery containing the composite negative electrode material, and a lithium ion secondary battery containing a negative electrode active material of the lithium ion secondary battery, where the composite negative electrode material includes a carbon core and a carbon coating layer, where the carbon coating layer is a carbon layer that coats a surface of the carbon core, and both the carbon core and the carbon coating layer include a doping element, where the doping element is at least one of element N, P, B, S, O, F, Cl, or H.

主权项

1. A composite negative electrode material, comprising:
a carbon core; and a carbon coating layer, wherein the carbon coating layer is a carbon layer that coats a surface of the carbon core, wherein the carbon core comprises a first doping element, and wherein the first doping element is at least one of element N, P, B, S, O, F, Cl, or H.