Patent ID: 11897207
Assignee: LG ENERGY SOLUTION, LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A sealing device for a secondary battery, the sealing device configured to seal a battery case accommodating an electrode assembly therein to manufacture the secondary battery, the sealing device comprising:
a sealing block configured to press a sealing portion of the battery case;
a flatness adjusting part configured to adjust a flatness of a pressing surface of the sealing block, the flatness being closeness of a portion of the pressing surface to a plane defined by a remainder of the pressing surface; and
a heater part configured to transfer heat to the sealing block to thermally fuse the sealing portion of the battery case when the sealing portion is pressed by the sealing block.