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. 06, 2012
Filed:
Nov. 19, 2004
Hee Gyoung Kang, Cheonan-si, KR;
Hyang Mok Lee, Daejeon, KR;
OH Young Hyun, Daejeon, KR;
Chang Bum Ahn, Daejeon, KR;
Hee Gyoung Kang, Cheonan-si, KR;
Hyang Mok Lee, Daejeon, KR;
Oh young Hyun, Daejeon, KR;
Chang bum Ahn, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Provided is a cell wherein out of electrodes constituting the cell, the outermost two electrodes are both cathodes, cathode current collectors of the cathodes are single-side coated with cathode active materials on the first surfaces thereof, other sides of cathode current collectors non-coated with cathode active materials are disposed toward the outside of a cell assembly and the thickness of cathode current collectors is 70 to 150% of that of the cathode active material coated layer. The cell in accordance with the present invention exhibits excellent safety in a nail penetration test.