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:
Nov. 22, 2011
Filed:
Sep. 21, 2007
Sang-young Lee, Daejeon, KR;
Dae-jong Seo, Daejeon, KR;
Dong-myung Kim, Daejeon, KR;
Seok-koo Kim, Daejeon, KR;
Hyun-min Jang, Daejeon, KR;
Sang-Young Lee, Daejeon, KR;
Dae-Jong Seo, Daejeon, KR;
Dong-Myung Kim, Daejeon, KR;
Seok-Koo Kim, Daejeon, KR;
Hyun-Min Jang, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is a separator comprising inorganic particle or aggregates thereof having a unique spectrum or color pattern according to a predetermined rule. Also, disclosed are an electrochemical device comprising the above separator and a method for identifying the origin or kind of the separator itself or the electrochemical device comprising the same by using the above separator. Further, disclosed is a method for manufacturing the aforementioned separator, the method comprising a step of forming a specific pattern by coating inorganic particles having a unique spectrum or color pattern on at least one area selected from the group consisting of a surface of a porous substrate and a porous part of the substrate.