US 12,334,490 B2
Battery cell with improved weldability and apparatus for processing the same
Dae Ho Jung, Daejeon (KR); Jae Young Jang, Daejeon (KR); Seong Ju Hwang, Daejeon (KR); and Sang Jin Kim, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/604,813
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Dec. 14, 2020, PCT No. PCT/KR2020/018261
§ 371(c)(1), (2) Date Oct. 19, 2021,
PCT Pub. No. WO2021/153902, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 10-2020-0010843 (KR), filed on Jan. 30, 2020.
Prior Publication US 2022/0209373 A1, Jun. 30, 2022
Int. Cl. H01M 10/04 (2006.01); B21D 17/02 (2006.01); B21D 22/04 (2006.01); B26D 1/04 (2006.01); B26D 1/06 (2006.01); B26D 7/01 (2006.01); H01M 50/105 (2021.01); H01M 50/176 (2021.01); H01M 50/533 (2021.01); H01M 50/534 (2021.01); H01M 50/55 (2021.01); H01M 50/557 (2021.01); H01M 50/562 (2021.01); H01M 50/564 (2021.01)
CPC H01M 10/0404 (2013.01) [B21D 17/02 (2013.01); B21D 22/04 (2013.01); B26D 1/04 (2013.01); B26D 1/045 (2013.01); B26D 1/06 (2013.01); B26D 7/01 (2013.01); H01M 50/105 (2021.01); H01M 50/176 (2021.01); H01M 50/533 (2021.01); H01M 50/534 (2021.01); H01M 50/55 (2021.01); H01M 50/557 (2021.01); H01M 50/562 (2021.01); H01M 50/564 (2021.01)] 15 Claims
OG exemplary drawing
 
1. A battery cell processing apparatus, the battery cell processing apparatus being configured to process a battery cell, the battery cell processing apparatus comprising:
a base portion having a seating die provided on an upper surface thereof, the seating die being configured to support a cell case and a pair of electrode leads;
a vertical fixing portion fixed to a predetermined region of one side of the base portion so as to be perpendicular to the base portion;
a block portion connected by a first connection portion to the vertical fixing portion so as to be movable upwards and downwards relative to the vertical fixing portion;
a pair of cutters located at a bottom surface of the block portion, the pair of cutters being configured to cut a negative electrode lead and a positive electrode lead respectively, the pair of cutters being spaced apart from each other by a predetermined distance; and
a pair of support portions located at the bottom surface of the block portion, the pair of support portions being located parallel to the pair of cutters in a horizontal direction, respectively,
wherein:
one of the pair of support portions is provided on a bottom surface thereof with protrusions configured to form one or more embossed portions in the negative electrode lead,
wherein the battery cell comprising:
an electrode assembly received in the cell case; and
the pair of electrode leads constituted by the negative electrode lead and the positive electrode lead protruding outwards from the cell case,
wherein the negative electrode lead comprises a nickel material and is provided with the one or more embossed portions, and
wherein the positive electrode lead comprises an aluminum material and is provided with no embossed portion.