Preparation method of conductive silver paste for aerosol spraying of electrode silver gate of solar cell

The invention is suitable for the technical field of solar cells, and provides a preparation method of conductive silver paste for aerosol spraying of a solar cell electrode silver gate, which comprises the following steps: step 1, taking Bi2O3, B2O3, SiO2 and ZnO according to a certain proportion, mixing, melting, water quenching and grinding to prepare glass powder with the particle size of less than 1 micron, and taking the glass powder as a binding phase; 2, mixing an anti-settling agent, a coupling agent and a surfactant according to a certain proportion to prepare an organic additive; step 3, putting terpilenol, ethyl cellulose and an organic additive into a beaker according to a certain proportion; the silver paste has excellent gas atomization performance, meanwhile, the preparation technology of a silver grid with the diameter smaller than 5 micrometers can be achieved, after multiple times of spraying, the conductive silver paste is good in conductivity and adhesive force, the surface of the conduct