DEMONSTRATION OF ANODE SUPPORTED CELL TECHNOLOGY IN kW CLASS STACK

摘要

CFCL has developed anode supported cell technology for operation in the temperature range 700℃ - 800℃. The cells have been scaled-up to 110 X 90mm in size and consist of a 3-layer laminate (support plus anode 500 - 700μm laminated with 20μm 8mol% yttria-zirconia electrolyte) and a screen-printed LSM cathode. The laminate structure is produced by tapecasting support anode and electrolyte tapes followed by roll lamination. Significant pore structure optimisation was required to allow operation with high steam content in the fuel. All production processes are being carried out on pilot plant production equipment (current capacity is 20 cells per week). The kW size stack consists of 22 layers of a 2 X 2 array design. Current collection and gas flow distribution has been developed in single cell and multicell monostack and a 2 layer 2 X 2 array prototype.