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. 02, 2019
Filed:
Mar. 10, 2017
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Inventors:
Sunggwi Ko, Yongin-si, KR;
Geunho Seo, Yongin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/12 (2006.01); B32B 3/30 (2006.01); B29C 65/00 (2006.01); B32B 15/085 (2006.01); H01M 2/04 (2006.01); B32B 15/08 (2006.01); B29C 65/16 (2006.01); B29C 45/14 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1235 (2013.01); B29C 65/16 (2013.01); B29C 66/30325 (2013.01); B29C 2045/14319 (2013.01); B32B 3/30 (2013.01); B32B 15/08 (2013.01); B32B 15/085 (2013.01); H01M 2/0408 (2013.01); H01M 2/1241 (2013.01); H01M 2200/20 (2013.01);
Abstract
A secondary battery includes an electrode assembly, a case accommodating the electrode assembly, and a cap assembly coupled to a top portion of the case. The cap assembly includes a cap-up, a safety vent under the cap-up, a cap-down under the safety vent, an insulator between the safety vent and the cap-down, and a sub-plate on a bottom surface of the cap-down. Laser patterns formed by using a laser beam are on a bottom surface of the safety vent and a top surface of the cap-down.