US 12,230,815 B2
Electrochemical cell and exterior material provided therein
Joo Seong Kim, Sejong-si (KR); Seung Gyu Lim, Daejeon (KR); Jin Hong Ha, Daejeon (KR); and Gil Ju Lee, Daejeon (KR)
Assigned to LiBEST INC., Daejeon (KR)
Appl. No. 17/433,426
Filed by LiBEST INC., Daejeon (KR)
PCT Filed Jun. 17, 2020, PCT No. PCT/KR2020/007853
§ 371(c)(1), (2) Date Aug. 24, 2021,
PCT Pub. No. WO2020/256412, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 10-2019-0071669 (KR), filed on Jun. 17, 2019.
Prior Publication US 2022/0052407 A1, Feb. 17, 2022
Int. Cl. H01M 50/184 (2021.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 50/105 (2021.01); H01M 50/126 (2021.01); H01M 50/136 (2021.01); H01M 50/172 (2021.01); H01M 50/531 (2021.01); H01M 50/543 (2021.01)
CPC H01M 50/184 (2021.01) [H01M 10/0525 (2013.01); H01M 10/058 (2013.01); H01M 50/105 (2021.01); H01M 50/126 (2021.01); H01M 50/136 (2021.01); H01M 50/172 (2021.01); H01M 50/531 (2021.01); H01M 50/543 (2021.01); H01M 2220/30 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrochemical cell, comprising:
an electrode assembly including a plurality of electrodes;
an exterior material including an accommodating part that accommodates the electrode assembly and a sealing part that seals the electrode assembly by bonding sealing surfaces along edges of the accommodating part; and
an electrode lead connected to the electrode assembly and extended to be exposed to an outside, wherein
the accommodating part includes a concavo-convex pattern that is extended in a width direction of the electrochemical cell and that repeats in a longitudinal direction of the electrochemical cell, and
the sealing part includes an overlap area having an arc-shaped crease, which is formed by being protruded or recessed when the concavo-convex pattern is formed and then the bonding of the sealing surfaces.