US 12,095,062 B2
Pouch case, and secondary battery and secondary battery pack using the same
Tae IL Kim, Daejeon (KR); Won Seok Jeong, Daejeon (KR); and Sung Yeop Kim, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK On Co., Ltd., Seoul (KR)
Filed on Apr. 17, 2023, as Appl. No. 18/301,786.
Application 18/301,786 is a continuation of application No. 17/337,542, filed on Jun. 3, 2021, granted, now 11,658,358.
Application 17/337,542 is a continuation of application No. 16/368,047, filed on Mar. 28, 2019, granted, now 11,056,734, issued on Jul. 6, 2021.
Claims priority of application No. 10-2018-0037661 (KR), filed on Mar. 30, 2018.
Prior Publication US 2023/0261276 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/647 (2014.01); H01M 10/613 (2014.01); H01M 10/6554 (2014.01); H01M 50/105 (2021.01); H01M 50/178 (2021.01); H01M 50/211 (2021.01); H01M 50/548 (2021.01)
CPC H01M 10/647 (2015.04) [H01M 10/613 (2015.04); H01M 10/6554 (2015.04); H01M 50/105 (2021.01); H01M 50/178 (2021.01); H01M 50/211 (2021.01); H01M 50/548 (2021.01)] 4 Claims
OG exemplary drawing
 
1. A secondary battery pack comprising:
a plurality of secondary batteries; and
a cooling plate including a first side surface, a second side surface facing the first side surface, and an upper surface, which surface contacts side surfaces of the plurality of secondary batteries;
wherein a sealing portion of each of the secondary batteries includes extension portions protruding by a predetermined length in a perpendicular direction to the side surface of each of the secondary batteries at respective portions adjacent to opposite end portions of the side surface of each of the secondary batteries,
wherein a step difference is formed with a height equal to or larger than the predetermined length of the extension portion of each of the secondary batteries on each of the first and second side surfaces of the cooling plate,
wherein dimples that are recessed toward an internal part of each of the secondary batteries are formed at opposite ends of the side surface of each of the secondary batteries.