US 12,191,507 B2
Battery cell
Jae Sik Shin, Daejeon (KR); Seung Hoon Ju, Daejeon (KR); Jae Gyu Byun, Daejeon (KR); and Gi Jeong Seo, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK On Co., Ltd., Seoul (KR)
Filed on Aug. 10, 2023, as Appl. No. 18/447,301.
Claims priority of application No. 10-2022-0113656 (KR), filed on Sep. 7, 2022; and application No. 10-2023-0070198 (KR), filed on May 31, 2023.
Prior Publication US 2024/0079691 A1, Mar. 7, 2024
Int. Cl. H01M 50/14 (2021.01); H01M 50/15 (2021.01); H01M 50/528 (2021.01); H01M 50/548 (2021.01); H01M 50/627 (2021.01); H01M 50/103 (2021.01)
CPC H01M 50/14 (2021.01) [H01M 50/15 (2021.01); H01M 50/528 (2021.01); H01M 50/548 (2021.01); H01M 50/627 (2021.01); H01M 50/103 (2021.01); Y02E 60/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A battery cell, comprising:
an electrode assembly in which a plurality of electrode plates are stacked, and the electrode assembly includes a coated portion coated with an active material and uncoated portion not coated with an active material;
a protective assembly disposed on at least one side of the electrode assembly and including an insulating material;
a case having an internal space in which the electrode assembly is accommodated, and
a cap assembly coupled to the case to close the internal space and facing the electrode assembly,
wherein the protective assembly includes:
a current collecting member disposed between the cap assembly and the electrode assembly and electrically connected with the electrode assembly, and includes a first surface facing the cap assembly; and
a protective frame disposed between the current collecting member and the electrode assembly, and supports the current collecting member,
wherein at least a portion of the uncoated portion protrudes toward the cap assembly and is bent to form a bonding portion,
wherein the bonding portion is disposed between the cap assembly and the current collecting member, and configured to contact in the first surface of the current collecting member.