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:
Apr. 07, 2009
Filed:
Feb. 03, 2005
Han-su Kim, Seoul, KR;
Jin-sung Kim, Cheonan-si, KR;
Myung-dong Cho, Hwaseong-si, KR;
Hyo-sug Lee, Suwon-si, KR;
Dong-min Im, Gwacheon-si, KR;
Han-Su Kim, Seoul, KR;
Jin-Sung Kim, Cheonan-si, KR;
Myung-Dong Cho, Hwaseong-si, KR;
Hyo-Sug Lee, Suwon-si, KR;
Dong-Min Im, Gwacheon-si, KR;
Samsung SDI Co., Ltd., Suwon, KR;
Abstract
An organic electrolytic solution and a rechargeable lithium battery comprising the same is provided. The organic electrolytic solution contains a lithium salt and an organic solvent mixture. The organic solvent mixture is comprised of a solvent with high permittivity, a solvent with a low boiling point, and a cyclic organic compound having at least an oxy-carbonyl group and having a ring structure of 6 units or more. The organic electrolytic solution helps to increase reduction decomposition stability in the lithium battery using the same. As a result, the irreversible capacity of the lithium battery at a first cycle decreases and charge/discharge efficiency and lifespan of the lithium battery increases. In addition, the battery thickness is maintained within a specific range at room temperature after formation and standard charging, which improves the reliability of the lithium battery.