Lithium-tellurium silicon-lead bismuth multi-component glass-oxide-complex system and conductive paste containing same

A lithium-tellurium silicon-lead bismuth multi-component glass-oxide-complex system for solar cell conductive paste, wherein the system is prepared by mixing a lithium-containing glass-oxide-complex (A-GOC), a tellurium silicon-containing glass-oxide-complex (T-GOC), a lead bismuth-containing glass-oxide-complex (L-GOC), and a balanced phase glass-oxide-complex (D-GOC),

• wherein
• the lithium-containing glass-oxide-complex (A-GOC) is obtained by mixing and melting Li2O, Bi2O3, PbO, ZnO, and B2O3 to form a glass-oxide frit, then quenching, and grinding;
• and based on the total mass of A-GOC, the formula of the A-GOC comprises:
• 15-25% by mass of Li2O, 50-70% by mass of PbO, 10-20% by mass of Bi2O3, 0-6% by mass of ZnO, and 0.5-3% by mass of B2O3;
• the lead bismuth-containing glass-oxide-complex (L-GOC) is obtained by mixing and melting PbO, Bi2O3, SiO2, Al2O3, ZnO and B2O3 to form a glass-oxide frit, then quenching, and grinding;
• and based on the total mass of the L-GOC, a formula of the L-GOC comprises:
• 2-50% by mass of PbO, 5-85% by mass of Bi2O3, 2-10% by mass of SiO2, 0.5-15% by mass of Al2O3, 0-6% by mass of ZnO, and 0.5-25% by mass of B2O3;
• the tellurium silicon-containing glass-oxide-complex (T-GOC) is obtained by mixing and melting SiO2, TeO2—, Bi2O3, O2O3, and Na2O to form a glass-oxide frit, then quenching, and grinding;
• and based on the total mass of the T-GOC, the formula of the T-GOC comprises:
• 10-20% by mass of SiO2, 60-80% by mass of TeO2, 2-20% by mass of Bi2O3, 0.5-2% by mass of B2O3, and 0.5-2% by mass of Na2O;
• the balanced phase glass-oxide-complex (D-GOC) is obtained by mixing and melting one or more metal oxides used in the A-GOC, the L-GOC and the T-GOC to form a glass-oxide frit, then quenching, and grinding;
• and based on the total mass of the D-GOC, a formula of the D-GOC comprises:
• 35-50% by mass of SiO2, 20-30% by mass of PbO, 2-10% by mass of MgO, 0.5-2% by mass of TiO2, and 25-40% by mass of Bi2O3.