SOFC Components

The anode of state-of-the-art SOFCs is a cermet made of metallic nickel and a YSZ skeleton. The zirconia serves to inhibit sintering of the metal particles and provides a thermal expansion coefficient comparable to that of the electrolyte. The anode has a high porosity (20-40%) so that mass transport of reactant and product gases is not 

The interconnect is the means by which connection is achieved between neighbouring fuel cells. In planar fuel cell terminology this is the bipolar plate, but the arrangement is 

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Ouweltjes JP, van Berkel FPF, Nammensma P, and Christie GM. Development of 2nd generation, supported electrolyte, flat plate SOFC components at ECN. In Singhal SC, Dokiya M, editors. Proceedings of the Sixth International Symposium on Solid Oxide Fuel Cells (SOFC-VI). Pennington, NJ The Electrochemical Society, 1999 99(19) 803-811. 

Interaction and Reactivity with Other SOFC Components.156... 

INTERACTION AND REACTIVITY WITH OTHER SOFC COMPONENTS... 

Microstructural, Property, and Performance Requirements of SOFC Components... 

Microstructural, Property, and Processing Requirements of SOFC Component Layers... 

The combination of various SOFC component performance, microstructural, and property requirements has led to a variety of structures, such as the composite, graded, and multilayered electrodes and electrolytes described above. The need... 

Spray pyrolysis has been utilized to produce both powders of SOFC materials [19] and also SOFC component layers [118-121], Thin (1 pm) coatings have been fabricated by spray pyrolysis [121], with zero gas permeability achieved for some conditions of substrate surface roughness and temperature during deposition, but... 

A.R. Nicoll, G. Barbezat, A. Salito, "The Potential of Plasma Spraying for the Deposition of Coatings on SOFC Components," The International Fuel Cell Conference Proceedings, NEDO/MITI, Tokyo, Japan, 1992. 

Several micromodels can be found in the literature on SOFC components or materials (e g. [8-15]), and the results should be taken into account when defining a mathematical model of a single cell, or stack. However, the analysis and description of such models is beyond the scope of the present book. 

Table 6.1 Thickness and material conductivity of the IP-SOFC components.

Ouweltjes, J.R, van Berkel, F.P.F., Nammensma, P. and Chrisite, G.M., Development of 2nd generation, supported electrolyte, flat plate SOFC components as ECN, in Proceedings of Solid Oxide Fuel Cells VI, S.C. Singhal and M. Dokiya (Eds.), 1999, p. 803. 

Cold isostatic pressing (CIP) can be one of such methods [1]. In the case of SOFC components, it has advantages of ... 

In order to gain a direct measurement of the oxide ion diffusion and surface exchange coefficients in ceramic materials an isotopic exchange and SIMS analysis technique has to be used. This technique is detailed elsewhere [9] and has been successfully used for a number of SOFC component materials, most notably with electrolytes [10,11] and cathodes... 

SOFCs consist of cells and electrical interconnectors cells itself consist of electrolyte, anode and cathode. The SOFCs components using Rare Earths are shown in Table 9-2 and Table 9-4. 

TABLE 9-4. The SOFCs components using Rare Earths. 

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