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:
Jan. 08, 2013
Filed:
Sep. 20, 2007
Jeong Hwan Koh, Daejeon, KR;
Yong Joon Ha, Daejeon, KR;
Jin Hyun Park, Seoul, KR;
Chul Haeng Lee, Daejeon, KR;
Young Min Lim, Daejeon, KR;
Jeong AE Ahn, Daejeon, KR;
Dmitry Pogozhev, Daejeon, KR;
Jeong Hwan Koh, Daejeon, KR;
Yong Joon Ha, Daejeon, KR;
Jin Hyun Park, Seoul, KR;
Chul Haeng Lee, Daejeon, KR;
Young Min Lim, Daejeon, KR;
Jeong Ae Ahn, Daejeon, KR;
Dmitry Pogozhev, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed is an electrolyte comprising a compound having both a sulfonate group and a cyclic carbonate group. The electrolyte forms a more stable and dense SEI layer on the surface of an anode, and thus improves the capacity maintenance characteristics and lifespan characteristics of a battery. Also, disclosed is a compound represented by the following Formula 1, and a method for preparing the same by reacting 4-(hydroxyalkyl)-1,3-dioxolan-2-one with a sulfonyl halide compound: