Knobbe, Martens, Olson & Bear, LLP
Method of manufacturing secondary battery and secondary battery manufactured by the method
A method of manufacturing a secondary battery and a secondary battery manufactured by the method are disclosed. In one aspect, the method includes providing an electrode assembly including first and second electrode plates, wherein the first electrode plate includes a plurality of first multi-tabs outwardly extending from an end thereof, and wherein the second electrode plate includes a plurality of second multi-tabs outwardly extending from an end thereof. The method also includes tack welding the first and second multi-tabs with the use of upper and lower welding tools, wherein the upper welding tool has a protrusion and the lower welding tool has a recess, and wherein a bending portion is formed in the first and second multi-tabs. The method further includes and welding lead tabs to the tack welded first and second multi-tabs, respectively and accommodating the electrode assembly having the lead tabs welded thereto in a case.
Samsung SDI Co., Ltd.
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inventional inventional additional additional inventional inventional
Yuna Jangho
Kim Yoon