公开(公告)号：US20240097203A1

公开(公告)日：2024-03-21

申请号：US18228941

申请日：2023-08-01

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hye Ryung BYON ,  Moony NA

IPC: H01M10/26 ,  H01M4/90 ,  H01M8/18 ,  H01M10/42

CPC classification number: H01M10/26 ,  H01M4/90 ,  H01M8/188 ,  H01M10/4235

Abstract: Provided is an aqueous zinc battery including: a negative electrode including zinc; a positive electrode disposed to be opposite to the negative electrode; and an electrolyte solution including a zinc salt and an organic acid having two carboxylic acid groups, wherein the organic acid having two carboxylic acid groups has 2 to 4 carbon atoms between the two carboxylic acid groups.
It is intended to provide an electrolyte solution for an aqueous zinc battery and an aqueous zinc battery which prevent a passivation layer such as zinc hydroxide sulfate hydrate (ZHS, ZnSO4[Zn(OH)2]3·xH2O)) which deteriorates battery performance from being formed in a zinc electrode, maintain a pH of the electrolyte solution, promote uniform zinc deposition during a constant current cycle, and show improved battery cycle performance.