Sealless planar

Figure 7-13 Performance Advantage of Sealless Planar (HPD5) over Conventional...

Sealless planar Electrochemical cells made up of electrolyte, cathode, and anode are stacked with metal interconnects without using sealing materials. For example, disk-type planar sealless stacks have been constructed by Mitsubishi Materials Corporation. For this purpose, fuel and air are introduced through the central part of the respective cells. Outside the cells, the remaining fuel becomes combusted with air. Self-supporting cells are usually used for this design. 

Fig. 18.2 Cell performance degradation of (a) the first generation sealless tubular cells by Westlnghouse (Currently Siemens, From [13, 14]) and (b) the second generation planar cells by Sulzer Hexis (Currently Hexis, From [17])...

Fig. 18.8 Impurities in anodes for four SOFC stacks with different materials and designs. Impurities were determined with SIMS on the 24 h operation and on the longer (about 5,000 h) operations, (a) High-temperature segment-in-series cell by MHI, (b) intermediate flatten tubular cell by Kyocera, (c) high temperature sealless tubular cells by TOTO, and (d) intermediate temperature disk-type planar cells by Mitsubishi Materials corp...

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