Hyundai Motor Company

Kia Corporation

Ulsan National Institute of Science and Technology

Hui Beom Nam

Yoon Sung Lee

Jun Ki Rhee

Sung You Hong

Nam Soon Choi

Sang Kyu Kwak

Hyeong Jun Kim

Seung Min Oh

Sung Ho Ban

Ko Eun Kim

Hyeon Gyu Moon

Seo Young Jeong

Min Ho Jeon

Min Pyeong Kim

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:

Electrolyte solution for lithium secondary battery and lithium secondary battery including same

Disclosed herein are an electrolyte for a lithium secondary battery, which can enhance lifetime and output characteristics in a high-capacity lithium secondary battery, and a lithium secondary battery including the same. The electrolyte for a lithium secondary battery may include a lithium salt, a solvent, and a functional additive, wherein the functional additive includes 5,5-diallyl-3-(tert-butyldimethylsilyl)oxazolidin-2-one as a positive electrode film additive.

Electrolyte solution for a lithium secondary battery and a lithium secondary battery including same

An electrolyte for a lithium secondary battery can enhance lifetime and output characteristics in a high-capacity lithium secondary battery. The electrolyte for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive. The functional additive includes 1-(3-((tert-butyldimethylsilyl)oxy)propyl)-5-(4-fluorophenyl)-1H-1,2,3-triazole-4-carbonitrile as a positive electrode film additive.

An additive for an electrolyte solution improves the electrochemical properties of a lithium secondary battery.

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Ulsan, South Korea

Hui Beom Nam