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:
Feb. 24, 2009
Filed:
Nov. 23, 2005
Han-su Kim, Seoul, KR;
Myung-dong Cho, Hwaseong-si, KR;
Dong-min Im, Seoul, KR;
Boris A. Trofimov, Irkutsk, RU;
Albina Mikhalev, Irkutsk, RU;
Han-Su Kim, Seoul, KR;
Myung-Dong Cho, Hwaseong-si, KR;
Dong-Min Im, Seoul, KR;
Boris A. Trofimov, Irkutsk, RU;
Albina Mikhalev, Irkutsk, RU;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and a carbonate or oxalate derivative having at least one substituted or unsubstituted cyano group. The organic electrolytic solution and the lithium battery employing the same have improved reductive decomposition stability, thereby decreasing an irreversible capacity after a first cycle and improving the charge/discharge efficiency and lifespan of the battery. The lithium battery has non-varying chemical properties at room temperature and a uniform thickness after standard charging, and thus has high reliability.