Development and Fabrication of a Novel Non Anode-Supported Microtubular Fuel Cell

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Authors
  1. Sarkar, P.
  2. Yamarte, L.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);Alberta Research Council Inc, Edmonton Alta (CAN) Advanced Materials B.U.
Abstract
The goal of this project was to lay down the initial foundation to develop a non anode-supported tubular single cell for intermediate temperature portable power applications. At the beginning, efforts were concentrated on developing a cathode-supported tubular single cell with LSF and LSCF cathode materials. The reason for this is that traditional LSM-based cathodes lose their effectiveness below 750°C, i.e., LSM activation polarization losses are very high below 750°C. However, it was found that these LSF and LSCF cathode-supported single cells developed cracks during cell performance testing. Because of this, efforts were turned to the development of a ‘Porous Electrolyte-Supported’ (PES) single cell. Though the present work achieved moderate power density for PES cells, future work is still needed to enhance the power densities of the cells and to improve the reproducibility of performance. Since the support structure of the PES cell is made of the same electrolyte materials as the thin, dense functional electrolyte layer, this type of cell does not develop any cracks or delamination from oxidation-reduction volume changes or thermal cycling in operation. Therefore, the PES single cell design is a good potential candidate for portable power sources requiring rapid on/off capability.

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Report Number
DRDC-ATLANTIC-CR-2009-138 — Contractor Report
Date of publication
01 Sep 2009
Number of Pages
60
DSTKIM No
CA034129
CANDIS No
533518
Format(s):
Electronic Document(PDF)

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