Low-temperature-resistant high-concentration seawater-based zinc metal battery electrolyte and preparation method thereof

The invention relates to the technical field of electrochemical devices, and discloses a low-temperature-resistant high-concentration seawater-based zinc metal battery electrolyte which is formed by mixing zinc lactate and potassium acetate, a solvent is clear and transparent seawater obtained after filter residues are removed through suction filtration, the concentration of the zinc lactate is 2-8 mol/L, and the molar ratio of the zinc lactate to the potassium acetate is 2: (5-8). The invention also discloses a preparation method of the low-temperature-resistant high-concentration seawater-based zinc metal battery electrolyte. According to the low-temperature-resistant high-concentration seawater-based zinc metal battery electrolyte and the preparation method thereof, the electrolyte has the characteristics of low temperature resistance and long cycle life, and the preparation method is simple. 本发明涉及电化学器件技术领域，公开了一种耐低温高浓海水基锌金属电池电解液，由乳酸锌和乙酸钾混合组成，溶剂为经过抽滤去除滤渣后得到的澄清透明的海水，其中，乳酸锌的浓度为2~8mol/L，乳酸锌和乙酸钾的摩尔比为2:(5~8)。本发明