Foam silver is a metallic material with a three-dimensional porous structure, widely used in multiple fields. In the electronics industry, it can serve as battery electrodes, electromagnetic shielding materials, etc.; in the catalytic and chemical engineering fields, it functions as catalysts or catalyst supports; in the biomedical field, it is applicable to biosensors, foam silver dressings, and the like; in the aerospace field, it acts as a lightweight, high-strength heat dissipation material; and in the environmental protection field, it serves as a filter medium for water treatment and air purification.