Cathode confluence layer material and preparation method of confluence layer
A technology of layer material and bus layer, which is applied in the field of preparation of cathode bus layer material and bus layer, can solve the problems that SOFC is not allowed to be processed, and achieve the effect of low temperature molding
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[0043] In a second aspect, the present application provides a method for preparing a cathode collector layer, such as figure 1 As shown, the method includes:
[0044] Step 1 (S101), placing the cathode collector layer material described in the first aspect above in a reducing atmosphere for heat treatment to obtain a reduced cathode collector layer material;
[0045] Step 2 (S102), mixing the reduced cathode collector layer material with a solvent to form a slurry;
[0046] Step 3 (S103), coating the slurry on the surface of the battery cathode to prepare a battery / battery system covered with a slurry layer;
[0047]Step 4 (S104), performing oxidation treatment on the battery coated with the slurry layer to prepare a battery / battery system with a formed cathode collector layer. In the embodiment of the present invention, the reduced spinel powder is re-transformed into a dense spinel structure after oxidation treatment, and the mutual growth connection between particles is r...
Embodiment 1
[0060] The spinel structure (Mn, Co) with a particle size of about 50nm 3 o 4 powder, into H 2 Heat treatment in the atmosphere for 10 hours (the heating temperature is 500°C) to obtain reduced manganese cobalt oxide particles; then mix the reduced manganese cobalt oxide particles with terpineol to obtain slurry.
[0061] The cathode of the planar solid oxide fuel cell is assembled in series with the next connector. Coating a layer of about 300 μm thick cathode collector layer slurry containing reduced manganese cobalt oxygen particles on the surface of the battery cathode. After the assembly of the cell stack is completed, the temperature is raised in the air, and the temperature is kept at 750°C for 2 hours, and the sintering and forming of the cathode confluence layer is completed.
Embodiment 2
[0063] The spinel structure (Cu,Mn) with a particle size of about 800nm 3 o 4 powder, into H 2 Heat treatment in the atmosphere for 6 hours (heating temperature is 700°C) to obtain reduced manganese cobalt oxide particles; then mix the reduced manganese cobalt oxide particles with butyl carbitol acetate to obtain slurry.
[0064] The cathode of the planar solid oxide fuel cell is assembled in series with the next connector. Coating a layer of about 270 μm thick cathode collector layer slurry containing reduced manganese copper oxide particles on the surface of the battery cathode. After the assembly of the cell stack is completed, the temperature is raised in an atmosphere containing oxidizing gas, and the temperature is kept at 550°C for 5 hours, and the sintering and molding of the cathode collector layer is completed.
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