▎ 摘　　要

NOVELTY - Preparing hard carbon active material negative electrode sheet involves utilizing a negative electrode sheet. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer coated on the negative electrode current collector, and the negative electrode active material layer is coated by negative electrode slurry coating. The preparation method of the hard carbon active material negative plate involves preparing negative electrode slurry, uniformly coating the above negative electrode slurry on the negative electrode current collector and drying , rolling, and slicing to obtain the negative electrode sheet. USE - Method for preparing hard carbon active material negative electrode sheet used in battery. ADVANTAGE - The method uses graphite and graphene in the negative electrode sheet to jointly construct a uniform three-dimensional electron transport and ion transport network. At the same time, the three-dimensional conductive network has a high thermal conductivity, which can improve the local overheating effect caused by uneven lithium supplementation, and the prepared battery has better cycle performance and rate performance.