▎ 摘　　要

NOVELTY - The graphite electrode has two layers of coating layers (2a,2b) that are sequentially stacked on the current collector. The compaction density of the coating layer gradually decreases along the direction away from the current collector. Each layer of the coating layer includes a first sub-coating layer and a second sub-coating layer that are sequentially stacked in a direction perpendicular to the current collector. The first sub-coating layer includes a first type of graphite, and the second sub-coating layer includes a second type of graphite. The innermost layer close to the current collector is the first sub-coating layer, and the outermost layer away from the current collector is the second sub-coating layer, in each coating layer. The first sub-coating layer and the second sub-coating layer include a binder, a dispersant, and a conductive agent. USE - Graphite electrode for power battery (claimed) used in new energy automobile industry and in new energy technology and energy storage industry. ADVANTAGE - The gradient void distribution is formed through the coating layer of different functional graphite and the change of the compaction density of the coating layer, which improves the electron and ion conductivity of the thick-coated graphite electrode, thereby improving the electrochemical performance of the electrode. The second type of graphite layer has good electronic conductivity, which can promote the rapid conduction of lithium ions on the surface of the pole sheet to intercalate between the first type of graphite layers, so that this stacked distribution can reduce the risk of lithium deposition in the electrode and improve electrode performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a preparation method of graphite electrode; and (2) a power battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view showing the structure of a graphite electrode. 2a,2bCoating layers