The invention discloses a
zinc ion battery with a flexible interdigital
electrode and a preparation method thereof, and belongs to the technical field of battery production. A plurality of interdigitals of the flexible interdigital positive
electrode and the flexible interdigital negative
electrode are alternately inserted one by one, an accommodating space is arranged between every two adjacent interdigitals, and gel
electrolyte is arranged in the accommodating spaces. The method comprises the following steps: preparing flexible interdigital positive electrode
slurry, flexible interdigital negative electrode
slurry and gel
electrolyte; placing the
slurry in a needle cylinder and selecting a needle head; connecting the needle cylinder with an
air pump and fixing the needle cylinder on a dispensing
machine; controlling the dispensing
machine to print a flexible interdigital positive electrode and a flexible interdigital negative electrode; and spraying the gel
electrolyte in the accommodating space between the flexible interdigital positive electrode and the flexible interdigital negative electrode. According to the invention, the overall weight of the battery is reduced, more
electric energy can be stored and released, and the application prospect of the battery in the fields of various portable devices and
high energy requirements is widened. The production cost of the battery can be reduced, the production efficiency is improved, and the flexibility is high.