PDF Publication Title:
Text from PDF Page: 213
Table 7-1 Evolution of Cell Component Technology for Tubular Solid Oxide Fuel Cells Component Ca. 1965 Ca. 1975 At Present a Anode • Porous Pt • Ni/ZrO2 cermeta • Ni/ZrO2 cermetb • Deposit slurry, EVD fixedc • 12.5 X 10-6 cm/cm °C CTE • ~150 μm thickness • 20 to 40 percent porosity Cathode • Porous Pt • Stabilized ZrO2 impregnated with praseodymium oxide and covered with SnO doped In2O3 • Doped lanthanum manganite • Extrusion, sintering • ~2 mm thickness • 11 X 10-6 cm/cm °C CTE from room temperature to 1000 °C • 30 to 40 percent porosity Electrolyte • Yttria stabilized ZrO2 • 0.5-mm thickness • Yttria stabilized ZrO2 • Yttria stabilized ZrO2 (8 mol percent Y2O3) • EVDd • 10.5 X 10-6 cm/cm °C CTE from room temperature to 1000 °C • 30 to 40 μm thickness Cell Interconnect • Pt • Mn doped cobalt chromite • Doped lanthanum chromite • Plasma spray • 10 X 10-6 cm/cm °C CTE • ~100 μm thickness a - Specification for Siemens Westinghouse SOFC b - Y2O3 stabilized ZrO2 c - “Fixed EVD” means additional ZrO2 is grown by EVD to fix (attach) the nickel anode to the electrolyte. This process is expected to be replaced. d - EVD = electrochemical vapor deposition The cell interconnect (doped lanthanum chromite) must be impervious to fuel and oxidant gases, and must possess good electronic conductivity. The interconnect is exposed to both the cathode and anode environments. Thus, it must be chemically stable under O2 partial pressures of about 1 to 10-18 atmospheres at 1,000 °C. The interconnect material is applied to the cathode tube as a narrow strip (see Figure 7-9, Figure 7-11) prior to depositing the electrolyte by masking the rest of the tube. Similarly, the interconnect strip is masked when the electrolyte is applied. The other cell components should permit only electronic conduction, and interdiffusion of ionic species in these components at 1,000 °C should not affect their electronic conductivity. Other restrictions on the cell components are that they must be stable in the gaseous environments in the cell and they must be capable of withstanding thermal cycling. The materials listed in Table 7-1 appear to meet these requirements. 7-17PDF Image | Fuel Cell Handbook (Seventh Edition)
PDF Search Title:
Fuel Cell Handbook (Seventh Edition)Original File Name Searched:
fuel-cell-handbook.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |