▎ 摘　　要

NOVELTY - Aqueous electrolyte comprises bromide ions and an additive, where the additive is choline chloride or a mixture of choline chloride and N-methyl-N-ethyl morpholine bromide. USE - Low temperature resistant zinc bromine liquid flow battery electrolyte for electrochemical energy storage. ADVANTAGE - The electrolyte prevents the zinc bromine liquid flow battery positive electrode being solidified by the charging product, widening the temperature window of the battery, expanding the use range, and has wide application prospect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a use of the aqueous electrolyte and/or additive in zinc-bromine flow battery.