▎ 摘　　要

NOVELTY - Anode material comprises an anode active material and a coating material coated on the anode active material. The coating material comprises lithium-containing additive. USE - Used as anode material. ADVANTAGE - The anode material: is prepared into anode piece and assembled into a battery; provides an active lithium source during the first charge and discharge process; reduces the material's active lithium loss; increases the porosity of the pole piece; and improves the liquid absorption and retention performance of the pole piece, and the cycle performance of the battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a method for preparing the anode material; an anode piece, comprising anode material; a method for preparing the anode piece; A lithium ion battery, comprising anode piece; and a method for preparing the lithium ion battery