公开(公告)号：US20170187069A1

公开(公告)日：2017-06-29

申请号：US15316149

申请日：2015-08-25

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Taeeun YIM ,  Youngjun KIM ,  Youngkwon KIM ,  Minsik PARK ,  Goojin JEONG ,  Yongnam JO

IPC: H01M10/0568 ,  H01M10/0569 ,  H01M4/38 ,  H01M10/054 ,  H01M4/587

CPC classification number: H01M10/0568 ,  H01M4/381 ,  H01M4/587 ,  H01M10/05 ,  H01M10/054 ,  H01M10/0569 ,  H01M2300/0045

Abstract: The described technology relates to an electrolyte solution comprising a sulfur dioxide-based ionic liquid electrolyte, and a sodium-sulfur dioxide (Na—SO2) secondary battery having same, one purpose of the described technology being to enhance the storage characteristics of sulfur dioxide gas in an electrolyte solution. The sodium-sulfur dioxide secondary battery includes a negative electrode which is formed from an inorganic material and which contains sodium. The battery also includes a positive electrode which is formed from a carbon material and a sulfur dioxide-based inorganic electrolyte solution. Here, the electrolyte solution contains a sulfur dioxide-based ionic liquid electrolyte prepared by injecting SO2 gas in an ionic liquid.