The utility model discloses a multi-layer composite anti-
corrosion waterproof battery connecting
assembly, which belongs to the field of
new energy, and comprises a sleeve, a
busbar, a locking bolt and a sealing ring, the
busbar is arranged in the sleeve, the sealing ring is arranged between the
busbar and the sleeve, and the busbar positioned in the sleeve is fixed through the locking bolt; the busbar comprises a
metal layer, insulating
layers and an anti-
corrosion outer layer, the insulating
layers are arranged on the two sides of the
metal layer, the anti-
corrosion outer layer is arranged on the side, away from the
metal layer, of each insulating layer, and the thickness of the anti-corrosion outer layer ranges from 0.1 mm to 5 mm; the anti-corrosion outer layer is made of
high polymer materials, the
high polymer materials comprise rubber, PVC, PP and
epoxy resin, the anti-corrosion outer layer is of a multi-layer structure, the inner layer is an
epoxy resin layer, the outer layer is made of rubber, PP or PVC, the material
mass ratio is 20-60 parts of the
epoxy resin of the inner layer, and the material
mass ratio is 40-80 parts of the rubber, PP or PVC of the outer layer, and the safety and reliability of the immersed cooling technology can be remarkably improved.