Leadless front silver paste for crystalline silica solar energy battery

The invention discloses a leadless front silver paste for a crystalline silica solar energy battery. The leadless front silver paste comprises silver powder, leadless glass powder, organic carriers, and also an acidic assistant composition, wherein the weight ratio of the leadless glass powder to the acidic assistant agent is 1:0.2 to 1:5. The leadless front silver paste provided by the invention reduces the corrosion to the packaging material EVA glue film of the battery by the alkaline substances in the leadless glass powder, besides, the packaging material EVA glue film is prevented from losing protection effects on the battery, and the service life of the battery is improved.