Cooling disc for energy storage battery

According to the energy storage battery cooling disc, water inlet channels and water outlet channels in a harmonica-shaped tube cooling plate are transversely arranged in a harmonica-shaped tube at intervals, water inlet holes of the water inlet channels and water outlet holes of the water outlet channels are formed in the two faces, facing the cooling plate, of the upper end of the cooling plate respectively, and the water inlet holes are a row of through holes leading to one face of the cooling plate; the water outlet holes are a row of through holes leading to the other surface of the cooling plate; a long-strip-shaped backflow device is arranged at the lower end of the cooling plate, and a backflow channel is formed between the backflow device and the partition plate. The inner space of the upper frame is divided into an inlet water collecting cavity and an outlet water collecting cavity by a cooling plate, which are respectively connected with a water inlet and a water outlet of a cooling power system; t