Lightweight battery shell

The invention provides a lightweight battery shell, which comprises a shell with a large upper part and a small lower part. The front side and the rear side of the shell are provided with grooves which are deep in the upper part and shallow in the lower part and are sunken inward. A plurality of partition walls are arranged in the shell at equal intervals; the partition walls divide the interior of the shell into a plurality of battery jars; two partition ribs are symmetrically arranged on the partition walls on the left side and the right side in each battery jar on the front side and the rear side of the shell; the two partition ribs are symmetrically arranged in a front-back mode; the left side and the right side in each battery jar are each symmetrically provided with an inwards-concave anti-creeping glue guide groove; and the anti-creeping glue guide grooves in two adjacent battery jars are arranged in a staggered mode. Through structural design optimization, the structural strength of the shell is impro