Advances in Zn-ion batteries via regulating liquid electrolyte
1. Introduction. Although the Li-ion batteries have dominated the market for portable electronics because of their high energy density and long life cycle, their drawbacks, particularly their safety issues, hinder their sustainable utilization [[1], [2], [3]].Recently, Zn-ion batteries (ZIBs) have attracted attention again due to their distinct merits [[4], [5], [6]]: