High-concentration solid-liquid mixed zinc ion battery electrolyte as well as preparation method and application thereof

The embodiment of the invention relates to a high-concentration solid-liquid mixed zinc ion battery electrolyte as well as a preparation method and application thereof, and belongs to the technical field of aqueous zinc ion batteries. The embodiment of the invention aims to solve the technical problem of low battery performance caused by zinc metal negative electrode dendritic crystal, hydrogen evolution, corrosion and positive electrode material dissolution caused by aqueous electrolyte in the practical application of the existing zinc ion battery. The preparation method of the high-concentration solid-liquid mixed zinc ion battery electrolyte provided by the embodiment of the invention comprises the following steps: mixing a zinc salt solution and a silicate solid with a layered structure, magnetically stirring uniformly, and then performing ultrasonic treatment to obtain the high-concentration solid-liquid mixed zinc ion battery electrolyte. The high-concentration solid-liquid mixed zinc ion battery electr