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. 28, 2012
Filed:
Mar. 19, 2008
Hwail Uh, Yongin-si, KR;
Hwail Uh, Yongin-si, KR;
Samsung SDI Co., Ltd., Gongse-dong, Giheung-gu, Yongin-si, Gyeonggi-do, KR;
Abstract
The present invention relates to a secondary battery including an insulating case interposed between the cap assembly and the electrode assembly. The insulating case is made of a sealing material with low thermal deformation, excellent flame-retardation, and excellent electric insulation so as to be able to enhance the reliability of the secondary battery. The secondary battery of the present invention includes a can having an open top, an electrode assembly disposed inside the can and generating electricity, a cap assembly sealing the open top of the can, and an insulating case interposed between the cap assembly and the electrode assembly. The insulating case includes a base having an upper surface and a side surface, and a protrusion formed on the side surface. The upper surface has a deformation hole. The deformation hole and the protrusion are arranged in a manner that a line connecting the center of the deformation hole to the protrusion is substantially perpendicular to the side surface.