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:
Aug. 05, 2014
Filed:
Nov. 02, 2006
Youngjoon Shin, Daejeon, KR;
Min Su Kim, Daejeon, KR;
Junill Yoon, Seoul, KR;
Ji Heon Ryu, Seoul, KR;
Jeong Hee Choi, Busan, KR;
Seung-jin Yang, Yongin-si, KR;
Youngjoon Shin, Daejeon, KR;
Min Su Kim, Daejeon, KR;
Junill Yoon, Seoul, KR;
Ji Heon Ryu, Seoul, KR;
Jeong Hee Choi, Busan, KR;
Seung-Jin Yang, Yongin-si, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed herein is a secondary battery constructed in a structure in which an electrode assembly having a cathode/separator/anode arrangement is mounted in a battery case made of a laminate sheet including a resin layer and a metal layer, electrode tabs of the electrode assembly are coupled to corresponding electrode leads, and the electrode assembly is sealed in the battery case while electrode leads are exposed to the outside of the battery case, wherein a protective film is attached to coupling regions between the electrode tabs and the electrode leads for sealing the coupling regions between the electrode tabs and the electrode leads. The secondary battery according to the present invention is constructed in a structure in which the coupling regions are sealed by the protective film, unlike a conventional secondary battery constructed in a structure in which the coupling regions between the electrode tabs and the electrode leads are exposed in the battery case. As a result, the electrode leads are protected from external impacts, such as falling of the battery. Consequently, no internal short circuit occurs, and therefore, the safety of the battery is increased.