Battery pack sealing plate and manufacturing method thereof, tray, battery pack and electric equipment

The invention discloses a battery pack sealing plate and a manufacturing method thereof, a tray, a battery pack and electric equipment, the battery pack sealing plate comprises a first protective layer and a second protective layer, and the first protective layer and the second protective layer are stacked; a first reinforcing layer and a second reinforcing layer, wherein the first reinforcing layer and the second reinforcing layer are arranged between the first protective layer and the second protective layer; wherein the second reinforcing layer extends in the circumferential direction of the first reinforcing layer, and the strength of the first reinforcing layer is different from that of the second reinforcing layer. According to the battery pack sealing plate disclosed by the embodiment of the invention, the structural strengths of different positions are different, so that the battery pack can be better protected, and the battery pack sealing plate is convenient to process and manufacture. 本发明公开了一种电池包密封