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:
Feb. 18, 2014
Filed:
Apr. 01, 2009
Hwail Uh, Yongin-si, KR;
Hwail Uh, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Abstract
Disclosed is a secondary battery, which includes: an electrode assembly; a can receiving the electrode assembly; and an insulation case provided at an upper part of the electrode assembly inside the can, where a stepped part thinner than the can is formed on an inner surface of an upper part of the can. The insulation case can be inserted to the stepped part and the cap plate can be seated on a second stepped part formed at the upper part of the stepped part and can have protrusions that contact the stepped part. The insulation case and cap plate are stably assembled to the can, thereby improving reliability of the process to weld the cap plate to the upper part of the can.