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. 06, 2012
Filed:
Mar. 24, 2008
Jong Hee Kim, Daejeon, KR;
Dongmyung Kim, Daejeon, KR;
Hyungook Yoon, Cheongju-Si, KR;
Yong Jeong Kim, Daejeon, KR;
Joo-hwan Sung, Daejeon, KR;
Seung W. Chu, Daejeon, KR;
Sung-pil Yoon, Daejeon, KR;
Dohyun Lee, Daejeon, KR;
Jong Hee Kim, Daejeon, KR;
Dongmyung Kim, Daejeon, KR;
Hyungook Yoon, Cheongju-Si, KR;
Yong Jeong Kim, Daejeon, KR;
Joo-Hwan Sung, Daejeon, KR;
Seung W. Chu, Daejeon, KR;
Sung-Pil Yoon, Daejeon, KR;
Dohyun Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed herein is a jelly-roll type electrode assembly ('jelly-roll') of a cathode/separator/anode structure, wherein the jelly-roll is constructed in a structure in which each electrode has active material layers formed on opposite major surfaces of a sheet-type current collector, the loading amount of an active material for the inner active material layer, constituting the inner surface of each sheet when each sheet is wound, is less than that of an active material for the outer active material layer, constituting the outer surface of each sheet when each sheet is wound, and the loading amount of the active material for the inner active material layer gradually increases from the central region of each wound sheet to the outermost region of each wound sheet.