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:
Mar. 17, 2026
Filed:
Jul. 29, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Geun Young Park, Daejeon, KR;
Yong Gon Lee, Daejeon, KR;
Min Su Cho, Daejeon, KR;
Byung Sup Kim, Daejeon, KR;
Joo Hwan Sung, Daejeon, KR;
Min Gyu Kim, Daejeon, KR;
Min Seon Kim, Daejeon, KR;
Yeong Hun Jung, Daejeon, KR;
Sang Hak Chae, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A button secondary battery includes: a lower can serving as a first electrode terminal; an upper can coupled to surround the lower can and serving as a second electrode terminal; and a gasket provided between the lower can and the upper can, wherein a recessed lower insertion groove and a recessed upper insertion groove are formed in a surface of the lower can and a surface of the upper can, which are in direct contact with the gasket, respectively, the lower insertion groove and the upper insertion groove are spaced apart from each other so as not to face each other, and a sealing protrusion having a closed curve shape and being in direct contact with the lower can and the upper can to increase in sealing force is formed on the gasket.