Special lithium battery pack for electric vehicle

The utility model discloses a special lithium battery pack for an electric vehicle, which comprises a lithium battery assembly, a waterproof shell, a battery shell assembly, a charging socket, a discharging socket and a battery shell slideway, the lithium battery assembly is arranged at the inner end part of the waterproof shell, and the battery shell assembly is arranged at the outer end part of the waterproof shell; a charging socket and a discharging socket are mounted at the outer end part of the battery shell assembly; the waterproof shell is additionally arranged outside the lithium battery assembly, the waterproof effect can be effectively achieved, the battery shell assembly is additionally arranged at the outer end of the waterproof shell, the utilization rate of the internal space is greatly increased, the structure is compact, and stability is high; meanwhile, the wire arrangement plate is selected to replace conventional wire arrangement, automatic welding can be achieved, welding spots are safe a