Protective box body for lithium battery

The utility model discloses a protective box body for a lithium battery, which belongs to the technical field of lithium batteries and comprises a placing box, a box cover clamped at the top of the placing box and a clamping mechanism, the clamping mechanism comprises two clamping plates, the two clamping plates are respectively movably embedded between the placing box and the inner surface wall of the box cover, the inner bottom wall of the placing box is fixedly connected with two fixing plates, and the fixing plates are fixedly connected with the box cover. Two fixing grooves are formed in the top of each fixing plate, the placing box is used for placing a lithium battery, the sealing performance of the placing box is improved through the box cover, the two clamping plates in the clamping mechanism are used for clamping the upper portion and the lower portion of the lithium battery correspondingly, and the placing stability of the lithium battery is improved; and the abutting springs in the fixing grooves