Method of manufacturing non-firing type electrode
View Patent ↗A method of manufacturing a non-firing type electrode comprising steps of: (A) applying on a substrate a conductive paste comprising, (a) a conductive powder comprising, (i) a first conductive powder having Young's modulus of 60×10 9 Pa or higher; and (ii) a second conductive powder having Young's modulus of 5×10 9 to 50×10 9 Pa; and (b) an organic vehicle, (B) heating the applied conductive paste at 50 to 350° C. to form an electrode; and (C) pressing the electrode at 10 to 1000 kN/m 2 of plane surface pressure or at 5 to 300 kN/m of linear pressure.
1. A method of manufacturing a non-firing type electrode comprising steps of:
(A) applying on a substrate a conductive paste comprising,
(a) a conductive powder comprising,
(i) a first conductive powder having Young's modulus of 60×10 9 Pa or higher, and
(ii) a second conductive powder having Young's modulus of 5×10 9 to 50×10 9 Pa; and
(b) an organic vehicle, wherein the substrate a glass substrate, a polymer film or a ceramic substrate;
(B) heating the applied conductive paste at 50 to 350° C. to form an electrode; and
(C) pressing the electrode at 10 to 1000 kN/m 2 of plane surface pressure or at 5 to 300 kN/m of linear pressure.
2. The method of claim 1 , wherein the electrode is pressed at 5 to 300 kN/m of linear pressure by a roll.
3. The method of claim 2 , wherein the roll is a calendar roll and the substrate with the electrode is a continuous roll and pressed with the calendar roll in a roll to roll system.
4. The method of claim 3 , wherein the substrate is a polymer film.
5. The method of claim 1 , wherein the conductive paste comprises (i) 100 parts by weight of a conductive powder and (ii) 5 to 90 parts by weight of an organic vehicle.
6. The method of claim 1 , wherein the first conductive powder comprising a conductive material selected from the group consisting of aluminum (Al), nickel (Ni), copper (Cu), silver (Ag), gold (Au), platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru), molybdenum (Mo), tungsten (W), alloy thereof and a mixture thereof.
7. The method of claim 1 , wherein the second conductive powder comprises a metal selected from the group consisting of tin (Sn), bismuth (Bi), lead (Pb), indium (In), gallium (Ga), alloy thereof and a mixture thereof.
8. The method of claim 1 , wherein the first conductive powder is 8 to 99 wt % and the second conductive powder is 1 to 92 wt % based on the weight of the conductive powder.
9. The method of claim 1 , wherein the electrode is heated at 50 to 120° C. in the heating step (B) and the electrode is heated again at 100 to 350° C. after the pressing step (C).
10. The method of claim 1 , wherein the first conductive powder is 8 to 50 wt % of Cu powder and the second conductive powder is 50 to 92 wt % of Sn powder based on the weight of the conductive powder.
11. An electrical device comprising the non-firing type electrode manufactured by the method of claim 1 .