2 Lead metal having duel tapered edges and lead tab comprising the same

The present invention relates to a lead metal for a secondary battery having a two-stage inclined unit and a lead tab for a secondary battery including the same, wherein the lead metal for a secondary battery includes: a central unit having upper and lower surfaces parallel to each other; and a two-...

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Bibliographic Details
Main Authors CHA SUN O, LEE CHUNG WON, AHN DONG IL, LEE SANG WOO
Format Patent
LanguageEnglish
Korean
Published 27.01.2023
Subjects
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Summary:The present invention relates to a lead metal for a secondary battery having a two-stage inclined unit and a lead tab for a secondary battery including the same, wherein the lead metal for a secondary battery includes: a central unit having upper and lower surfaces parallel to each other; and a two-stage inclined unit extending outward from the central unit, the two-stage inclined unit includes a first inclined unit having a predetermined range and slope and a second inclined unit having a predetermined range and slope, the second inclined unit has a greater slope than the first inclined unit with respect to the central unit, the range of the second inclined unit is greater than the range of the first inclined unit, and the first inclined unit and the second inclined unit are formed continuously. 본 발명은 상, 하면이 서로 평행하게 이루어진 중앙부 및 중앙부의 외측으로 연장되는 2단 경사부를 포함하고, 상기 2단 경사부는 소정 범위 및 기울기를 갖는 제1 경사부와 소정 범위 및 기울기를 갖는 제2 경사부를 포함하고, 상기 제2 경사부가 중앙부를 기준으로 제1 경사부보다 큰 기울기를 갖고, 상기 제2 경사부의 범위가 제1 경사부의 범위보다 크고, 상기 제1경사부와 상기 제2 경사부가 연속으로 형성되는 것을 특징으로 하는, 2단 경사부를 갖는 이차전지용 리드 메탈 및 이를 포함하는 이차전지용 리드 탭에 관한 것이다.
Bibliography:Application Number: KR20210131452