Positive plate, preparation method thereof and lithium ion battery based on positive plate

The invention discloses a positive plate in the field of chemical energy storage batteries, which comprises an active material, a binder, an organic solvent and a conductive agent, the mass ratio of the active material to the organic solvent is 1: (1.05-1.25), and the mass ratio of the active material to the conductive agent to the binder is (72-96): (4-6): (4-6). According to the positive plate, the power performance of the lithium ion battery can be remarkably improved. 本方案公开了化学储能电池领域的一种正极片，包括活性材料、粘结剂、有机溶剂和导电剂，其中，活性材料与有机溶剂的质量比为1:1.05～1.25，活性材料、导电剂和粘结剂的质量比为72～96:4～6:4～6。本申请的正极片可以显著提高锂离子电池的功率性能。