Conductive silver aluminum paste, method for preparing the same, and electrode using the same

A method for preparing a conductive silver aluminum paste, comprising the following steps:

• preparing glass powder:
• weighing raw materials used in glass powder according to a preset ratio;
• mixing them;
• after melting them at a high temperature, cooling them down, and drying them, through a crushing process, obtaining required glass powder;
• preparing organic carrier:
• weighing raw materials used in organic carrier according to a preset ratio;
• heating, stirring, and mixing them;
• dispersing them uniformly through high-speed centrifugation, and then filtering them to obtain organic carrier;
• preparing conductive silver aluminum paste:
• adding silver powder, metal powder containing aluminum element, powder containing silicon or boron element, and prepared glass powder into prepared organic carrier respectively according to a mass ratio, mixing them and stirring them uniformly, and then grinding them, adjusting their viscosity, and filtering them to obtain conductive silver aluminum paste;
• wherein, 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%-90.0%, metal powder containing aluminum element 0.5%-3.0%;
• powder containing silicon or boron element 0.1%-1.0%;
• glass powder 1.5%-6.0%;
• organic carrier 7.0%-15.0%.