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:
Mar. 10, 2015
Filed:
Oct. 22, 2007
Young-sun Park, Daejeon, KR;
Byung-hun OH, Daejeon, KR;
Pil-kyu Park, Daejeon, KR;
Yong-tae Lee, Jeonju-si, KR;
Jae-won Lee, Daejeon, KR;
Myoung-hun Lee, Seoul, KR;
Young-Sun Park, Daejeon, KR;
Byung-Hun Oh, Daejeon, KR;
Pil-Kyu Park, Daejeon, KR;
Yong-Tae Lee, Jeonju-si, KR;
Jae-Won Lee, Daejeon, KR;
Myoung-Hun Lee, Seoul, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is the structure of a center pin inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type electrode assembly. The center pin can be manufactured through a simple process and can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside or when the internal temperature rises. The center pin is manufactured by winding a planar substrate, which has at least two protrusions formed in an embossing type or which has at least two scores formed in a predetermined shape, into a tubular shape.