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. 31, 2010
Filed:
Oct. 10, 2005
Sung Kyun Chang, Daejeon, KR;
Jae Hyun Lee, Daejeon, KR;
Joon Hwan Lee, Daejeon, KR;
Soo Hyun Ha, Busau, KR;
Jeong Ju Cho, Daejeon, KR;
Sung Kyun Chang, Daejeon, KR;
Jae Hyun Lee, Daejeon, KR;
Joon Hwan Lee, Daejeon, KR;
Soo Hyun Ha, Busau, KR;
Jeong Ju Cho, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is a secondary battery. The secondary battery includes a battery can serving as a positive electrode terminal or a negative electrode terminal of the secondary battery, an electrically conductive substrate provided at an outer portion of the battery can, and a nonconductive film interposed between the battery can and the electrically conductive substrate in order to insulate the electrically conductive substrate from the battery can, wherein the electrically conductive substrate is electrically connected to an electrode terminal having polarity opposite to that of the battery can. Safety of the secondary battery is ensured even if the secondary battery is subject to external parameters, such as penetration of a sharp tool (e.g. a nail or a drill tip), pressing force of a tool (e.g. a nipper), external impact, and exposure to the high temperature.