NOVELTY - An electroconductive composition comprises silver powder, nonlead glass powder containing bismuth oxide, boron trioxide, zinc oxide and alkaline-earth metal oxide, and component containing organic substance. The amount of glass powder of alkaline-earth metal oxide is 10-50 mol%. The glass powder has basicity of 0.3-0.8, glass transition point of 300-450 degrees C. The amount of glass powder of bismuth oxide is 10-65 mol%. The amount of glass powder of boron trioxide is 20-50 mol%. The amount of glass powder of zinc oxide is 0.1-50 mol%.    USE - Electroconductive composition is used for manufacturing solar cell (claimed).    ADVANTAGE - The reliable solar cell manufactured using the electroconductive composition has electrode with excellent performance and electroconductivity.    DETAILED DESCRIPTION - An electroconductive composition comprises silver powder, nonlead glass powder containing bismuth oxide, boron trioxide, zinc oxide and alkaline-earth metal oxide, and component containing organic substance. The electroconductive composition is baked to electrically connects with n-type-semiconductor layer (12) formed under silicon nitride layer (11) by penetrating silicon nitride layer. The amount of glass powder of alkaline-earth metal oxide is 10-50 mol%. The glass powder has basicity of 0.3-0.8, glass transition point of 300-450 degrees C. The amount of glass powder of bismuth oxide is 10-65 mol%. The amount of glass powder of boron trioxide is 20-50 mol%. The amount of glass powder of zinc oxide is 0.1-50 mol%. The alkaline-earth metal oxide includes magnesium oxide, barium oxide, calcium oxide and/or strontium oxide. The electroconductive composition contains 0-2 mol% silicon dioxide, aluminum oxide, zirconium oxide and/or nickel oxide as trace components of glass powder. INDEPENDENT CLAIMS are included for the following:    (1) manufacture of electroconductive composition; and    (2) manufacture of solar cell (10).    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of solar cell. (Drawing includes non-English language text)    Solar cell (10)    Silicon nitride layer (11)    N-type semiconductor layer (12)    Electrode (13)    P-type semiconductor substrate (14)