Hyundai Motor Company

Kia Corporation

Ulsan National Institute of Science and Technology

Unist (ulsan National Institute of Science and Technology )

The Industry & Academic Cooperation in Chungnam National University (iac)

Sejong University

Unist, Inc.

Ko Eun Kim

Yoon Sung Lee

Seung Min Oh

Sung Ho Ban

Nam Soon Choi

Sung You Hong

Sang Kyu Kwak

Jun Ki Rhee

Hyeon Gyu Moon

Dae Yeon Hwang

Seo Young Jeong

Hyeong Jun Kim

Ik Kyu Kim

Sang Mok Park

Ji Eun Lee

Woo Gyum Kim

Woo Young Jin

Hui Beom Nam

Seung Wan Song

Gyeong Jun Chung

Min Pyeong Kim

Min Ho Jeon

Sang Shin Lee

Sang Hun Lee

Min Young Shin

Seung Taek Myung

Hee Jae Kim

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.

The present disclosure provides an electrolyte for a lithium secondary battery capable of improving the lifespan characteristics and output characteristics of a high capacity lithium secondary battery and a lithium secondary battery including the same. The electrolyte for a lithium secondary battery, according to an embodiment of the present disclosure, is an electrolyte for a lithium secondary battery including a lithium salt, a solvent, and a functional additive agent, in which the functional additive agent includes a cathode film additive agent, (4-allyl-2-methoxyphenoxy) trimethylsilane, represented by the following formula:

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

Proposed is an additive for an electrolyte solution to improve the electrochemical properties of a lithium secondary. Especially, an electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes 1,2-bis(maleimido)ethane, represented by the following formula 1: The electrolyte solution for a lithium secondary battery includes: an electrolyte salt and an organic solvent, wherein the electrolyte solution further comprises, as additives, vinylene carbonate (VC) represented by the following Formula 1, and a compound represented by the following Formula 2, (5-(4-nitrophenyl)-1-(3-((trimethylsilyl)oxy)propyl)-1H-1,2,3-triazole-4-carbonitrile):

Solution for lithium secondary battery and lithium secondary battery including same

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

Disclosed are an electrolyte solution and an additive thereof, which may improve electrochemical properties of a lithium secondary battery.

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

Disclosed is a positive electrode material for a lithium secondary battery. The positive electrode material includes a positive electrode active material formed of Li—[Mn—Ti]-M-O-based material including a transition metal (M) to enable reversible intercalation and deintercalation of lithium and molybdenum oxide. The positive electrode active material is coated with the molybdenum oxide to form a coating layer on a surface thereof.

Positive electrode material for lithium secondary battery and lithium secondary battery including same

The electrolyte for a lithium secondary battery comprises: a lithium salt; a solvent; and a functional additive, wherein the functional additive comprises naphthalen-1-yl sulfurofluoridate, represented by the following formula 1:

Electrolyte for lithium secondary battery and lithium secondary battery comprising same

A method of mixing a cathode active material in a process of manufacturing a cathode of a lithium secondary battery is provided. The method includes a preparation step of preparing a lithium compound removal solution in which PAA (polyacrylic acid) is mixed with a solvent, a removal step of reacting the lithium compound removal solution with the cathode active material, on a surface of which a lithium compound is present, thus removing the lithium compound present on the surface of the cathode active material, and a mixing step of mixing the cathode active material, which is mixed with the lithium compound removal solution, with a conductive material and a binder.

Method of mixing cathode active material

The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes: at least one high-voltage additive selected from a group consisting of lithium bis(phthalato)borate, represented by the following formula 1; hexafluoroglutaric anhydride, represented by the following formula 2; and phosphoric acid tris(2,2,2-trifluoroethyl)ester, represented by the following formula 3:

Disclosed are an electrolyte solution for lithium secondary batteries and a lithium secondary battery including the same. The electrolyte solution for lithium secondary batteries includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes a first positive-electrode film additive, which is 2-(2'((tert-butoxycarbonyl)amino)ethoxy)-ethyl p-methylbenzenesulfonate, represented by the following Formula 1:

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

The electrolyte solution for a lithium secondary battery includes: a lithium salt; a solvent; and an anode additive including 5-(4-cyanophenyl)-1-(4-fluorobenzyl)-1H-1,2,3-triazole-4-carbonitrile represented by Chemical Formula 1 below:

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

The electrolyte solution for a lithium secondary battery includes: a lithium salt; a solvent; and an anode additive including 1-benzyl-5-(4-nitrophenyl)-1H-1,2,3-triazole-4-carbonitrile represented by Chemical Formula 1 below: 

The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes 1,2-bis(maleimido)ethane, represented by the following formula 1: 

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Cheongju-si, South Korea

Ko Eun Kim