Lg Energy Solution, Ltd.

Seoul National University

Daun Jeong

Jong-Chan Lee

Jonghyun Chae

Lucia Kim

Jehoon Lee

Na Kyung Kim

Kihyun Kim

Soohyun Kim

Kwonnam Sohn

Daeil Kim

Yeonju Lee

Dong Hyeop Han

Wansoo Chang

Ji-Hoon Baik

Chan Yeong Koong

The present disclosure relates to a positive electrode active material, a preparation method thereof, and a lithium-sulfur battery including the same, more particularly to a positive electrode active material including a particulate structure of a core-shell structure which comprises a core part and a shell part covering the whole surface or a part of the surface of the core part, wherein the core part comprises a sulfur compound, and the shell part comprises a polythiophene acetic acid-polyethylene glycol graft copolymer. The positive electrode active material of the present disclosure has excellent electrochemical reactivity and adsorbs lithium polysulfide to improve capacity and lifetime characteristics of the lithium-sulfur battery.

Positive electrode active material for lithium-sulfur battery, preparation method thereof and lithium-sulfur battery comprising same

A polymer material for a lithium secondary battery having ionic conductivity and electronic conductivity at the same time, and a method for preparing the same. The polymer material includes a polythiophene-based polymer and a conductive polymer, and the polymer material may be formed by forming a polythiophene-based polymer, forming a conductive polymer, and heat-treating the polythiophene-based polymer and the conductive polymer.

Lithium secondary battery polymer material and manufacturing method therefor

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

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Seoul, South Korea

Daun Jeong