LITHIUM-ION RECHARGEABLE BATTERY NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF, LITHIUM-ION RECHARGEABLE BATTERY NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION RECHARGEABLE BATTERY

摘要

A lithium-ion rechargeable battery negative electrode active material and a preparation method thereof, a lithium-ion rechargeable battery negative electrode plate, and a lithium-ion rechargeable battery are disclosed. The negative electrode active material includes a carbon core and a coating layer formed on a surface of the carbon core, a material of the coating layer includes amorphous carbon and a doping element, and the doping element includes element nitrogen. The lithium-ion rechargeable battery negative electrode active material has the carbon core, and the coating layer that includes the doping element and the amorphous carbon is provided on the surface of the carbon core.