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:
Jan. 19, 2010
Filed:
Sep. 23, 2005
Applicants:
SE Yun Kim, Youngin-si, KR;
Sang Sok Jung, Youngin-si, KR;
Inventors:
Se Yun Kim, Youngin-si, KR;
Sang Sok Jung, Youngin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cap assembly and a lithium secondary battery with the same, in which a shape of a safety vent of a cap plate is such that the safety vent is easily fracturable under low pressure even if the safety vent has a relatively large thickness, thereby improving reliability and safety of the lithium secondary battery. The cap assembly cap plate has a safety vent including at least one first directional weak component and at least one second directional weak component which is connected to the first directional weak component.