Abstract: The present invention discloses a conductive silver aluminum paste comprising silver powder, aluminum powder, glass powder, silver aluminum paste additive, and organic carrier; when defining the total weight of the conductive silver aluminum paste as 100%, the weight percentage contents of the components are: silver powder 80.0%-88.0%. aluminum powder 0.5%-2.0%; glass powder 2.5%-6.0%; silver aluminum paste additive 0.1%-2.0%; organic carrier 8.0%-12.0%; wherein the glass powder comprises first main glass powder and second main glass powder, or comprises first main glass powder, second main glass powder, and auxiliary glass powder; the first main glass powder is glass powder in a Pb—Si—B—Li—O system, the second main glass powder is glass powder in a Pb—Bi—B—Li—O system, and the auxiliary glass powder is glass powder in a Ba—B—Si—Li—O system. The present invention further discloses a method for preparing a high-performance conductive silver aluminum slurry, an electrode, and an N-type TOPcon battery.

Abstract: A conductive silver aluminum paste includes the following components by weight percentage: 80.0%-90.0% of silver powder; 0.3%-2.5% of aluminum powder; 0.0%-1.5% of silicon powder; 1.0%-6.0% of first-type glass powder; 0.5%-4.0% of second-type glass powder; and 7.0%-15.0% of organic vehicle. The first-type glass powder is Pb-Zn-B-O-M glass powder, and the second-type glass powders is Ba-B-O-M glass powder, M is at least one of alkali metal elements; the organic vehicle is a vehicle of organic resin and/or cellulose, and a content of the organic resin and/or the cellulose in the organic vehicle is not higher than 10.0% of a total mass of the organic vehicle. By introducing two different types of glass powder, the contact resistance between the metal grid and the PN junction layer is reduced, thereby obtaining high-performance silver aluminum pastes for N-type Topcon monocrystalline silicon cells and high-efficiency electrode metallization for N-type silicon solar cells.