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. 19, 2013
Filed:
Jan. 12, 2007
Minjung Ryu, Seoul, KR;
Young-min Kim, Daejeon, KR;
Eun-suok OH, Daejeon, KR;
Seungrim Yang, Daejeon, KR;
Juhyun Kim, Seoul, KR;
Ki Woo Chun, Daejeon, KR;
Chanhong Lee, Daejeon, KR;
Ki-young Lee, Daejeon, KR;
Seo-jae Lee, Daejeon, KR;
Jongmoon Jin, Seoul, KR;
Taeyeon Kim, Jeonju-si, KR;
Minjung Ryu, Seoul, KR;
Young-Min Kim, Daejeon, KR;
Eun-Suok Oh, Daejeon, KR;
SeungRim Yang, Daejeon, KR;
Juhyun Kim, Seoul, KR;
Ki Woo Chun, Daejeon, KR;
ChanHong Lee, Daejeon, KR;
Ki-Young Lee, Daejeon, KR;
Seo-Jae Lee, Daejeon, KR;
JongMoon Jin, Seoul, KR;
Taeyeon Kim, Jeonju-si, KR;
LG Chem, Ltd., , KR;
Abstract
Provided is an electrode mix for a secondary battery containing an electrode active material, comprising a PVA having a degree of polymerization of more than 2500 and a degree of saponification of more than 90% as a binder, and a lithium secondary battery comprising the same. Use of the binder according to the present invention can provide advantageous effects such as improved adhesive strength between the electrode mix and current collector and between the electrode mixes, prevention of the peeling and separation of the active material even after repeated charge/discharge cycles, and inhibition of decreases in the capacity or output power retention rate of the secondary battery.