Electrolyte for manganese-tin secondary battery

The invention discloses an electrolyte for a manganese-tin secondary battery, and relates to the technical field of electrolytes. The electrolyte comprises a positive electrode electrolyte and a negative electrode electrolyte, the positive electrode electrolyte comprises manganese salt and an acid solution; the negative electrode electrolyte comprises tin salt and an acid solution; the acid solution comprises one or more of trifluoromethanesulfonic acid, methanesulfonic acid, ethanesulfonic acid, sulfamic acid, benzene methanesulfonic acid, phenolsulfonic acid, salicylic acid and citric acid, and the concentration of the acid solution is 0.01-10 mol/L. The electrolyte provided by the invention obviously improves the cycle reversibility and stability of the battery. And meanwhile, the tin deposition morphology is improved, and the coulombic efficiency and stability of a tin electrode are improved. 本发明公开了一种锰-锡二次电池用电解液，涉及电解液技术领域。本发明所述电解液包括正极电解液和负极电解液；所述正极电解液包括锰盐和酸溶液；所述负极电解液包括锡盐和酸溶液；所述酸溶液包括三氟甲磺酸，甲磺酸，乙磺酸，氨基磺酸，苯甲磺酸