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:
Aug. 08, 2023
Filed:
Aug. 01, 2018
Samsung Sdi Co., Ltd., Yongin-si, KR;
Yunhee Kim, Yongin-si, KR;
Kyoung Soo Kim, Yongin-si, KR;
Yongchan You, Yongin-si, KR;
Erang Cho, Yongin-si, KR;
Seonju Choi, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
The present invention relates to a lithium secondary battery comprising: a negative electrode comprising a negative electrode active material containing Si or Sn, a positive electrode comprising a positive electrode active material, and a non-aqueous electrolyte. The non-aqueous electrolyte comprises: a non-aqueous organic solvent; a lithium salt; fluoroethylene carbonate; a first additive containing at least one compound among compounds resented by chemical formulas 1 to 4; and a second additive containing at least one compound among compounds represented by chemical formula 5 or 6.