Copper sealing glass powder, preparation method and application thereof, and electrodes of battery

The invention discloses copper sealing glass powder, a preparation method and an application thereof, and electrodes of a battery, and relates to the field of glass sealing materials. The copper sealing glass powder solves the problems of poor matching property of thermal expansion coefficients, large sealing difficulty and instable sealing performance of the copper sealing glass powder and copper alloy materials. Raw materials of the copper sealing glass powder disclosed by the invention comprise components as follows in percentage by mass: 55%-75% of Bi2O3, 5%-15% of B2O3, 5%-20% of ZnO, 0.1%-20% of BaO, 0.1%-5% of SiO2, 0.1%-5% of Sb2O3, 0.1%-3% of Fe2O3 and 0.1%-5% of Li2O. The copper sealing glass powder has the advantages that the comprehensive performance is good, and particularly, the sealing temperature is relatively low while the thermal expansion coefficient of the copper sealing glass powder and the thermal expansion coefficient of the copper alloy materials are matched.