Inferior battery of high performance column type lithium is with apron

The utility model provides an inferior battery of high performance column type lithium is with apron for sealing of the inferior battery terminal surface of lithium, the apron has internal surface (3), the surface of evagination (4) slightly of indent, its characterized in that: the liquid hole (1) of notes and centre bore (2) still have, outer wall (61) and inner wall (62) of internal surface (3) form certain angle (a), the degree of depth (h) of internal surface (3) indent is 0.8mm-1.2mm, and apron thickness (J) is 2.75mm-3.75mm. The utility model discloses a dead angle is more effectively avoided wasing by the apron, and the appearance is more mellow and fuller, and cover plate surface is cleaner, and manufacturing procedure is simple, and the production efficiency of apron is showing and improves, and the cost is showing and descends, is applicable to the needs of the inferior battery technology development of more high -performance lithium.