US 11,996,511 B2
Rechargeable battery
Jun Ho Lee, Yongin-si (KR); Youmee Kim, Yongin-si (KR); Seungjun Myoung, Yongin-si (KR); Jeongho Park, Yongin-si (KR); and Byongchul Woo, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Appl. No. 17/597,241
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
PCT Filed Jul. 28, 2020, PCT No. PCT/KR2020/009941
§ 371(c)(1), (2) Date Dec. 29, 2021,
PCT Pub. No. WO2021/033939, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 10-2019-0101315 (KR), filed on Aug. 19, 2019.
Prior Publication US 2022/0320567 A1, Oct. 6, 2022
Int. Cl. H01M 10/04 (2006.01); H01M 50/109 (2021.01); H01M 50/124 (2021.01); H01M 50/183 (2021.01); H01M 50/342 (2021.01); H01M 50/531 (2021.01)
CPC H01M 10/0431 (2013.01) [H01M 10/0427 (2013.01); H01M 50/109 (2021.01); H01M 50/124 (2021.01); H01M 50/183 (2021.01); H01M 50/3425 (2021.01); H01M 50/531 (2021.01)] 13 Claims
OG exemplary drawing
 
1. A rechargeable battery comprising:
an electrode assembly wound with a separator between a first electrode and a second electrode;
a first exterior material including an opening receiving the electrode assembly and facing a bottom side of the electrode assembly;
a second exterior material covering the opening, and combined to the first exterior material to seal an internal side of the first exterior material;
a reinforcing member having greater rigidity than the first exterior material and the second exterior material, disposed between the electrode assembly and the first exterior material, and including a side wall for surrounding a lateral side of the electrode assembly, the side wall having a ring shape; and
a first insulating member between the electrode assembly and the reinforcing member, and insulating the electrode assembly from the reinforcing member.