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:
Sep. 03, 2013
Filed:
Feb. 14, 2008
Jae Yun Min, Daejeon, KR;
Jeon Keun OH, Daejeon, KR;
Eun Joo Lee, Daejeon, KR;
Tae Kon Ko, Chungcheongnam-do, KR;
Jae Yun Min, Daejeon, KR;
Jeon Keun Oh, Daejeon, KR;
Eun Joo Lee, Daejeon, KR;
Tae Kon Ko, Chungcheongnam-do, KR;
SK Innovation Co., Ltd., Seoul, KR;
Abstract
A method of fabricating a lithium secondary battery, which improves charge-discharge characteristics, lifespan, and temperature characteristics of the battery and which includes interposing a separator between a positive electrode plate and a negative electrode plate, thus manufacturing an electrode assembly; housing the electrode assembly in a battery case, introducing an additive-containing electrolytic solution, and then sealing the battery case; subjecting the sealed battery case to pre-charging, and then removing gas generated by the pre-charging; subjecting the battery case to formation; and removing gas generated by the formation, wherein the additive is one or more selected from among LiFBCO, 3,9-divinyl-2,4,8,10-tetraoxaspiro[5,5]undecane, LiB(CO), poly(ethyleneglycol)borate and derivatives thereof, halogen-substituted carbonate, and vinyl silane, and the pre-charging is conducted in a range of 10% or less of a battery capacity.