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:
Jul. 15, 2025
Filed:
Aug. 23, 2022
Samsung Sdi Co., Ltd., Yongin-si, KR;
Hyun Soo Lee, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A secondary battery includes: a case accommodating an electrode assembly; a cap plate sealing the case; a negative electrode terminal and a positive electrode terminal on the cap plate; a first negative-electrode-current-collector plate extending along a lower side of the cap plate between the electrode assembly and the cap plate and having a first end electrically connected to the negative electrode plate and a second end electrically connected to the negative electrode terminal; and a first positive-electrode-current-collector plate extending along the lower side of the cap plate between the electrode assembly and the cap plate and having a first end electrically connected to the positive electrode plate and a second end electrically connected to the positive electrode terminal. The first positive-electrode-current-collector plate has a greater thickness than the first negative-electrode-current-collector plate, and the first negative-electrode-current-collector plate has a first protrusion that locally protrudes toward the electrode assembly.