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:
Sep. 23, 2008
Filed:
Sep. 19, 2005
Young Gi Lee, Daejeon, KR;
Yong Sik Hong, Daejeon, KR;
Yong Joon Park, Daejeon, KR;
Kwang Sun Ryu, Daejeon, KR;
Young Gi Lee, Daejeon, KR;
Yong Sik Hong, Daejeon, KR;
Yong Joon Park, Daejeon, KR;
Kwang Sun Ryu, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
There are provided an anode for a lithium metal polymer secondary battery comprising an anodic current collector having a surface on which a plurality of recesses having a predetermined shape are formed and a method of preparing the same. The plurality of recesses are formed on a surface of the anodic current collector using a physical method or a chemical method. In a lithium metal polymer secondary battery employing the anode, oxidation/reduction of lithium and the formation of dendrite occur only in the recesses formed by surface patterning of the anodic current collector. Thus, expanding and shrinking of a battery due to a change in the thickness of the lithium anode can be prevented and cycling stability and the lifespan of a battery can be improved.