▎ 摘　　要

NOVELTY - Anode piece for sodium ion battery comprises middle layer. The first functional layer on one side of the middle layer, second functional layer on the other side of the intermediate layer, and the first sodium ion anode slurry coating layer close to the first functional layer. Second sodium ion anode slurry coating layer is closely attached to the second functional layer. The intermediate layer is aluminium foil. The first functional layer and the second functional layer are alkaline blocking conductive functional layers. The thickness of the first functional layer and the thickness of the second functional layer are both 0.5-1.5 μm. USE - Used as anode piece for sodium ion battery. ADVANTAGE - The anode piece: effectively inhibits the reaction of sodium hydroxide/sodium carbonate and aluminum foil on the sodium ion anode material inhibits the breaking phenomenon in the rolling process; improves the capacity and cycle life of the battery, and capacity of the anode and the lifting effect of the cycle life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing anode piece for sodium ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of anode piece for sodium ion battery. 10First sodium ion anode slurry coating layer 11First function 12Intermediate layer 13Second function 14Second sodium ion anode slurry coating layer