Welding Apparatus and Welding Method
AssigneeLG Energy Solution, Ltd.
InventorYoung Seok Baek
Life of this patent
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Abstract
A welding apparatus includes: a horn having a first welding surface on which a plurality of first protrusions are provided; and an anvil facing the horn with a plurality of electrode tabs, which are included in a secondary battery, therebetween, and having a second welding surface on which a plurality of second protrusions are provided. Each of the first protrusions has a planar cross-section that may have a shape different from a shape of a planar cross-section of each of the second protrusions, and each of the electrode tabs arranged between the horn and the anvil may have a width greater than a width of the horn. A method including the same is also provided.
Claims10
A welding apparatus comprising:
- a horn having a first welding surface on which a plurality of first protrusions are provided;
- and
- an anvil having a second welding surface on which a plurality of second protrusions are provided, wherein the anvil is oriented to face the horn with a plurality of electrode tabs, which are provided in a secondary battery, therebetween,
- wherein each of the plurality of first protrusions has a planar cross-section having a shape different from a shape of a planar cross-section of each of the plurality of second protrusions, and
- wherein each of the plurality of electrode tabs aligned between the horn and the anvil has a width greater than a width of the horn.
A welding method comprising:
- aligning a horn, which has a first welding surface on which a plurality of first protrusions are provided, and an anvil, which has a second welding surface on which a plurality of second protrusions are provided;
- to face each other;
- and
- pressing a plurality of electrode tabs provided in a secondary battery using the horn,
- wherein each of the first protrusions has a planar cross-section having a shape different from a shape of a planar cross-section of each of the second protrusions, and
- each of the electrode tabs aligned between the horn and the anvil has a width greater than a width of the horn.
Dependencies are inferred from the claim text.