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:
Jan. 06, 2026
Filed:
Aug. 23, 2022
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Unist (Ulsan National Insitute of Science and Technology), Ulsan, KR;
Yoon Sung Lee, Gyeonggi-do, KR;
Jun Ki Rhee, Gyeonggi-do, KR;
Ko Eun Kim, Chungcheongbuk-do, KR;
Sung Ho Ban, Gyeonggi-do, KR;
Seung Min Oh, Incheon, KR;
Sang Kyu Kwak, Ulsan, KR;
Sung You Hong, Ulsan, KR;
Nam Soon Choi, Ulsan, KR;
Min Ho Jeon, Ulsan, KR;
Hyeong Jun Kim, Ulsan, KR;
Hui Beom Nam, Ulsan, KR;
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
UNIST (Ulsan National Institute of Science and Technology), Ulsan, KR;
Abstract
Disclosed is an additive for an electrolyte solution to improve the electrochemical properties of a lithium secondary battery. Especially, an electrolyte solution for a lithium secondary battery include: an electrolyte salt, an organic solvent, and one or more additives comprising a vinylene carbonate (VC) compound having a structure of Formula 1 and 4-allyl-2-methoxyphenyl fluoro sulfate having a structure of Formula 2: