Battery shell

The utility model relates to the technical field of batteries, and discloses a battery shell which comprises a shell body, a first cover body and a second cover body, the shell body is of a hollow columnar structure with two open ends, a roll core is arranged in the shell body, the first cover body is arranged at one end of the shell body and is connected with an electrode connecting part of the roll core, and the second cover body is connected with the electrode connecting part of the roll core. And the second cover body is arranged at the other end of the outer shell, is connected with the electrode connecting part of the roll core and is matched with the first cover body to seal the roll core in the outer shell. The battery shell can ensure firmer connection between the electrode connecting part and the positive pole shell and the negative pole cover body, reduces the conditions of short circuit and the like, and improves the quality of a finished product. 本实用新型涉及电池技术领域，公开了一种电池外壳，包括外壳体、第一盖体和第二盖体，外壳体呈两端为开口设