公开(公告)号：US20230100839A1

公开(公告)日：2023-03-30

申请号：US17741594

申请日：2022-05-11

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  She-Huang Wu ,  Shi-Kai Jiang ,  Wei-Nien Su ,  Jing-Hong Chen ,  Sheng-Chiang Yang

IPC: H01M10/056 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525

Abstract: Present invention is related to a liquid electrolytic medium having non-polar or extreme low polar solvents TTE, FEC, and EMC and a lithium salt with the concentration not exceeding the saturation concentration of the said solvents. The lithium salt in the present invention is preferred to be any lithium salt other than LiPF6. The liquid electrolytic medium of the present invention is compatible with solid state Li batteries using sulfide solid electrolytes and has the abilities to avoid high voltage decomposition during cycle life of the batteries. The liquid electrolytic medium is easy to produce without alternating any existing procedures performed in the factory in the conventional manufacturing process. As introducing the liquid electrolytic medium, the Li batteries still can perform efficiently with high interface conductivity and the sulfide solid electrolyte will not be attacked or damaged by the present invention.