Sealing device for secondary battery
AssigneeLG Energy Solution, Ltd.
InventorsIk Soo Chae, Chang Bum Ahn
Life of this patent
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Abstract
The present invention relates to a sealing device for a secondary battery. The sealing device is configured to seal a battery case accommodating an electrode assembly therein to manufacture the secondary battery, the sealing device including 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, 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.
Claims17
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.
A method of sealing a battery case of a secondary battery, the battery case accommodating an electrode assembly therein, the method comprising:
- pressing a sealing block against a sealing portion of the battery case;
- adjusting a flatness of a pressing surface of the sealing block by moving a flatness adjusting part, the flatness being closeness of a portion of the pressing surface to a plane defined by a remainder of the pressing surface;
- and
- transferring heat from a heater part to the sealing block to thermally fuse the sealing portion that is pressed by the sealing block.
Dependencies are inferred from the claim text.