The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Oct. 12, 2023
Samsung Sdi Co., Ltd., Yongin-si, KR;
Sung Gwi Ko, Yongin-si, KR;
Gun Gue Park, Yongin-si, KR;
Hyun Ki Jung, Yongin-si, KR;
Myung Seob Kim, Yongin-si, KR;
Yoon Sun Yoo, Yongin-si, KR;
Woo Tae Jun, Yongin-si, KR;
Gwan Hyeon Yu, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A cylindrical secondary battery includes: an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a cylindrical case accommodating the electrode assembly and electrically connected to the second electrode plate; a terminal coupled to a lower surface of the case through a first gasket and electrically connected to the first electrode plate; a cap plate sealing the upper end of the case; and a second gasket between the case and the cap plate, the second gasket having: a sidewall portion in close contact with a side surface of the case; and a bottom portion extending inwardly from a bottom end of the sidewall portion and having at least one opening formed therein. The bottom portion of the second gasket having flange parts extending from the sidewall portion in an edge region and a bridge part connecting the flange parts to each other.