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. 03, 2009
Filed:
Apr. 03, 2006
Young-min Kim, Daejeon, KR;
Eun-suok OH, Daejeon, KR;
Juhyun Kim, Daejeon, KR;
Minjung Ryu, Seoul, KR;
Young-Min Kim, Daejeon, KR;
Eun-Suok Oh, Daejeon, KR;
Juhyun Kim, Daejeon, KR;
Minjung Ryu, Seoul, KR;
LG Chem, Ltd., , KR;
Abstract
Provided is a lithium secondary battery comprising an anode mix including a silicon- or tin-based material as an anode active material, and as a binder, a photo-polymerizable material composed of one or more monomers selected from the group consisting of an epoxy derivative, polyester acrylate and epoxy acrylate, or oligomers or polymers thereof, wherein an anode can be prepared within a short period of time via a simplified manufacturing process by applying the anode mix to a current collector and polymerizing the applied anode mix with light-irradiation, and further, superior charge/discharge cycle characteristics of the battery are provided due to stable maintenance of binding between active materials and between the active material and current collector, regardless of significant volume changes of the anode active material occurring upon charging/discharging the battery.