▎ 摘　　要

NOVELTY - The device has a support table (1) that is rotatably provided with an operating element (2). A first driving element (3) for driving the operating element to rotate is fixed on the support table. The operating element is provided with a protective element (4) fixed on the support table. The support table is provided with a drying element (5) for drying the raw materials. A stirring element is slidably arranged on the protective element. The stirring element is swung in the protective element. The support table is fixed with a second driving element (7) for driving the stirring element to rotate. The protective element is provided with a connecting shaft fixed on the support plate. A symmetrically distributed protective plate is fixed on the connecting shaft. The included angle formed between the protective plates is 90degrees-180degrees. One end of the protective plate is firmly connected with the connecting shaft, and the other end is in contact with the operating element. USE - Nitrogen-doped graphene composite electrode preparation device for preparing a negative electrode of a lithium ion battery. ADVANTAGE - The motor drives the rotating plate to rotate, so that the feeding plate rotates in contact with the feeding port to complete the raw material, and the stirring rod is driven to reciprocate by starting the first motor. The second motor is started to drive the stirring rod in the mixing area to fully stir the raw materials, the dried raw material is screened to make the particle size of the screened raw material convenient for electrode preparation, improve the quality of the raw material, and facilitate subsequent production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method-doped graphene composite electrode preparation. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic structural view of the nitrogen-doped graphene composite electrode preparation device Support table (1) Operation piece raw material (2) First driving piece (3) Protective element (4) Drying element (5) Second driving element (7)