Figure 1 Stack Design

This design has two key features:

• Single cells used in this design contain supported thin electrolytes. Thin electrolytes reduce component weight, improve cell performance, and minimize internal resistance, allowing efficient operation at reduced temperatures. The advantages of reduced-temperature operation include wider choice of materials, longer cell life, increased reliability, and potentially reduced fuel cell cost.

• The metallic interconnect assembly, made from thin foils, is designed to provide sufficient compliancy to minimize thermal expansion mismatch stresses and form a compact, lightweight structure.

This stack design has the potential of having low material and manufacture costs and can produce high power densities while maintaining high efficiency at reduced temperatures.

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