US 11,777,181 B2
Metal plate for resistance welding and resistance welding method using the same
Song Yi Song, Daejeon (KR); Heung Kun Park, Daejeon (KR); and Ju Hwan Baek, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/441,378
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Sep. 22, 2020, PCT No. PCT/KR2020/012739
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2021/091081, PCT Pub. Date May 14, 2021.
Claims priority of application No. 10-2019-0140885 (KR), filed on Nov. 6, 2019.
Prior Publication US 2022/0190449 A1, Jun. 16, 2022
Int. Cl. H01M 50/566 (2021.01); H01M 50/107 (2021.01)
CPC H01M 50/566 (2021.01) [H01M 50/107 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A metal plate for being resistance-welded to an electrode terminal of a cylindrical battery, the metal plate comprising:
a body; and
a pair of protrusion units located spaced apart from each other by a predetermined distance, the pair of protrusion unit being provided at one side surface of the body, and
a slit is formed between the pair of protrusion units,
wherein,
each of the protrusion units comprises a first protrusion having a predetermined diameter and a second protrusion having a larger diameter than the predetermined diameter of the first protrusion, and
central points of the first protrusion and the second protrusion are located on an identical imaginary axis.