FIELD: chemistry.
SUBSTANCE: invention relates to an aqueous electrolytic solution used for an aqueous lithium-ion storage battery. According to the invention, the aqueous electrolytic solution contains at least one metal cation selected from an aluminum ion, a titanium ion, a manganese ion, a zinc ion, a gallium ion, an yttrium ion, zirconium ion, indium ion, lanthanum ion, cerium ion, neodymium ion and hafnium ion, in such amount that its content is more than 0 mol and not more than 0.01 mol per kilogram of aqueous electrolytic solution, in addition to lithium ion and at least one anion based on imide.
EFFECT: prevention of aqueous electrolytic solution electrolysis on anode surface during charging / discharging of aqueous lithium-ion accumulator battery.
8 cl, 23 dwg, 16 ex
