Hyundai Motor Company

Kia Motors Corporation

Industry-University Cooperation Foundation Hanyang University

Jong Yeob Park

Sun Choi

Hong Seok Min

Yong Jun Jang

Yong Sub Yoon

Dong Wook Shin

Ju Yeong Seong

Pil Gun Oh

Disclosed is a method of manufacturing a solid electrolyte for an all-solid battery. The method may include preparing a solvent admixture comprising a first polar organic solvent containing a cyano group and a second polar organic solvent containing a hydroxyl group, preparing an electrolyte admixture by dissolving LiS, PSand LiCl in the solvent admixture, and preparing a solid electrolyte by stirring the electrolyte admixture. The method may further include precipitating the solid electrolyte by evaporating the solvent admixture, and heat treating the precipitated solid electrolyte. In particular, the solvent admixture may include the second polar organic solvent in an amount of about 0.01 to 0.03 wt % based on the total weight of the first polar organic solvent.

Method of manufacturing sulfide-based solid electrolyte for all-solid battery

Growing community of inventors

Seoul, South Korea

Jong Yeob Park