Welding Apparatus, Welding Method, and Electrode Assembly
AssigneeLG Energy Solution, Ltd.
InventorGi Hwan Kwon
Life of this patent
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Abstract
A welding apparatus configured to weld a plurality of electrode tabs of an electrode assembly, the welding apparatus including a pair of guides configured to gather the plurality of electrode tabs and a welding part configured to weld the plurality of electrode tabs gathered by the pair of guides. Each of the guides including an elevation part elevated with respect to the electrode tabs and a rotation part configured to rotate with respect to the elevation part when each of the electrode tabs is pressed so as to pull the electrode tabs toward the electrode assembly.
Claims20
A welding apparatus, configured to weld a plurality of electrode tabs of an electrode assembly to each other, the welding apparatus comprising:
- a pair of guides configured to gather the plurality of electrode tabs;
- and
- a welding part configured to weld the plurality of electrode tabs gathered by the pair of guides,
- wherein each of the guides comprises:
- an elevation part arranged to be elevated with respect to the electrode tabs;
- and
- a rotation part configured to rotate with respect to the elevation part when each of the electrode tabs are pressed so as to pull the electrode tabs toward the electrode assembly.
A welding method for welding a plurality of electrode tabs provided in an electrode assembly to each other, the welding method comprising:
- gathering the plurality of electrode tabs by allowing a pair of guides to approach each other;
- pulling the electrode tabs toward the electrode assembly by the pair of guides;
- and
- welding the plurality of electrode tabs to each other by a welding part.
An electrode assembly comprising:
- a stack in which a plurality of electrodes are stacked with a separator therebetween;
- and
- a plurality of electrode tabs connected to the plurality of electrodes and welded to each other to form a welded portion,
- wherein an outermost electrode tab of the plurality of electrode tabs comprises:
- a first section extending away from the stack;
- and
- a second section extending from the first section and angled toward the stack.
Dependencies are inferred from the claim text.