Page 248 - High Temperature Solid Oxide Fuel Cells Fundamentals, Design and Applications

Cell and Stack Designs 225

Various alternative cell designs are under development to avoid the difficulties
mentioned above. For example, flattened ribbed cells have been conceived to
obtain higher power densities than tubular cells yet require no seals. Another
example is the seal-less planar design which is being developed to ease the
sealing issues of planar cell stacks.

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