Electrode silver slurry for crystalline silicon solar cell

The invention belongs to a photocell electrode material, and discloses electrode silver slurry for a crystalline silicon solar cell. The electrode silver slurry is prepared from, by weight, 40-60 parts of silver powder, 5-10 parts of antimony powder, 10-20 parts of manganese copper alloy powder, 1-5 parts of lithium iron phosphate and carbon nanotube composite materials, 1-8 parts of glass powder, 0.5-2 parts of silane coupling agent, 8-10 parts of propylene glycol mono-n-butyl ether, 1-5 parts of turpentine oil, 1-3 parts of lecithin, 0.1-0.5 part of ethyl cellulose and 0.25-1 part of fumed silica. The invention further discloses a preparation method of the electrode silver slurry. The obtained electrode silver slurry is free of lead and completely meets the environment protection requirement; when the electrode silver slurry is applied to production of the solar cell, the adhesion of the electrode silver slurry on the surface of the solar cell is high, and the photoelectric conversion efficiency of the solar cell is high; meanwhile, the technology is simple, the cost is low, and therefore the electrode silver slurry has a wide application prospect.