2.1.1. Cell configuration
An SOFC single cell can be configured into various shapes depending on the specific stack design. SOFC cells have been made into tubular, flat-plate or planar, bell-and-spigot, banded, and corrugated structures [2] and [3]. Each shape results in distinct current paths and requires or incorporates different cell configurations. The configurations in SOFC single cells can be classified into two broad categories: self-supporting and external-supporting. In the self-supporting configuration, one of the cell components (often the thickest layer) acts as the cell structural support. Thus, single cells can be designed as electrolyte-supported, anode-supported, or cathode-supported. In the external-supporting configuration, the single cell is configured as thin layers on the interconnect or a porous substrate. The various cell configurations for SOFCs are schematically shown in Fig. 1. The key features of each configuration are summarized in Table
2.1.1. Cell configuration
An SOFC single cell can be configured into various shapes depending on the specific stack design. SOFC cells have been made into tubular, flat-plate or planar, bell-and-spigot, banded, and corrugated structures [2] and [3]. Each shape results in distinct current paths and requires or incorporates different cell configurations. The configurations in SOFC single cells can be classified into two broad categories: self-supporting and external-supporting. In the self-supporting configuration, one of the cell components (often the thickest layer) acts as the cell structural support. Thus, single cells can be designed as electrolyte-supported, anode-supported, or cathode-supported. In the external-supporting configuration, the single cell is configured as thin layers on the interconnect or a porous substrate. The various cell configurations for SOFCs are schematically shown in Fig. 1. The key features of each configuration are summarized in Table
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