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. 27, 2011
Filed:
Mar. 12, 2010
Soojin Kim, Daejeon, KR;
Hong-kyu Park, Daejeon, KR;
Sung Kyun Chang, Daejeon, KR;
Jeong-ju Cho, Daejeon, KR;
Hochun Lee, Daejeon, KR;
Soojin Kim, Daejeon, KR;
Hong-Kyu Park, Daejeon, KR;
Sung kyun Chang, Daejeon, KR;
Jeong-Ju Cho, Daejeon, KR;
Hochun Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed herein is a lithium secondary cell including 20 to 100 wt. % of lithium transition metal oxide represented by a formula of LiNiMnMeO, relative to a total amount of a cathode active material, as well as an electrolyte consisting of a lithium salt and a non-aqueous solvent, wherein a first additive to form a protective film (that is, a solid electrolyte interface film: SEI film) over a surface of an anode active material and a second additive to form another SEI film over the surface of the anode active material while inactivating impurities contained in the cathode active material are included in the electrolyte.