Lg Energy Solution, Ltd.

Seoul National University

Wansoo Chang

Jonghyun Chae

Jehoon Lee

Lucia Kim

Dong Hyeop Han

Soohyun Kim

Jong-Chan Lee

Sung Chul Lim

Suhwan Kim

JangBae Kim

Na Kyung Kim

Daun Jeong

Ji-Hoon Baik

Disclosed is a sulfur-carbon composite including a carbon material, a coating on the carbon material which comprises a copolymer containing a monomer unit containing a catechol group and a monomer unit containing a lithium ion conductor, and sulfur. Also disclosed is an electrode for lithium-sulfur battery including the same, and a lithium-sulfur battery including the electrode.

Sulfur-carbon composite, positive electrode for lithium-sulfur battery comprising same, and lithium-sulfur battery comprising positive electrode

A solid polymer electrolyte composition and a solid polymer electrolyte are disclosed. More particularly, a solid polymer electrolyte composition and a solid polymer electrolyte formed by photocuring the same are disclosed, including a polymer (A) containing alkylene oxide and having one reactive double bond, a multifunctional cross-linkable polymer (B), and an ionic liquid, wherein the ionic liquid includes an amide-based solvent and a lithium salt.

Solid polymer electrolyte composition, and solid polymer electrolyte containing same

The present invention relates to a polymer electrolyte and a method for manufacturing same. More specifically, a polymer electrolyte with improved ion conductivity can be produced by adding boron nitride to a solid electrolyte comprising polysiloxane.

Solid electrolyte and method for manufacturing same

An electrochemical pretreatment method of a vanadium positive electrode for a lithium secondary battery, which can improve the lifetime characteristics of the positive electrode and the battery by inhibiting the leaching of vanadium when charging and discharging the lithium secondary battery using, for instance, vanadium oxide (VO) as a positive electrode, and a vanadium positive electrode for a lithium secondary battery pretreated thereby. The electrochemical pretreatment method of the vanadium positive electrode for a lithium secondary battery includes a) a step of discharging the lithium free vanadium positive electrode at a voltage of 1.9 V or more; b) an electrochemical pretreatment step of maintaining the discharged vanadium positive electrode of a) at an onset potential value or a potential value having a maximum current through a potentiostat; and c) a step of charging and discharging the pretreated vanadium positive electrode of b) at a voltage range of 2.1V to 4.0V.

Method for electrochemical pretreatment of vanadium positive electrode for lithium secondary batteries and vanadium positive electrode for lithium secondary batteries pretreated thereby

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Daejeon, South Korea

Wansoo Chang