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Improving a Molten Carbonate Fuel Cell Matrix Strength By Fiber Reinforcing

Monday, 14 May 2018: 11:00
Room 604 (Washington State Convention Center)

ABSTRACT WITHDRAWN

Molten Carbonate Fuel Cell matrix which is made of LiAlO2 has tendence to cracking, which reduces the performance and durability of the MCFC due to electrolyte loss and gas crossover [1--5]. In this paper we propose testing different types of fibers in order to reduce the brittleness of the matrix during the start-up and operation of the MCFC. Reducing LiAlO2 matrix brittleness can be done the addition of ceramic fibers or by using highly porous ceramic paper infiltrated by LiAlO2.

Two types of LiAlO2 reinforcement are tested. The first---short fibers, and the second---high porous ceramic paper. Short fibers will be added to the slurry and the green tape will be obtained by the tape casting method. The second method will be based on infiltration of ceramic paper by LiAlO2 suspension.

Acknowledgments
The project is coefinanced by Polish National Center for
Research and Development of Polish-Taiwanese/Taiwanese-
Polish Joint Research Call granted by decision number DZP/
PL-TWIII/16/2016.

References

[1] Cheng, L. Guo, S. Xu, and R. Zhang: 2014: The Optimization of Matrix Preparation Process and Performance Testing for Molten Carbonate Fuel Cell, Journal of Chemistry 2014, 1-7, 2014.

[2] J.-E. Kim, K. Y. Patil, J. Han, S.-P. Yoon, S.-W. Nam, T.-H. Lim, S.-A. Hong, H. Kim, and H.-C. Lim: Using aluminum and Li2CO3 particles to reinforce the a-LiAlO2 matrix for molten carbonate fuel cells, International journal of hydrogen energy 34(22), 9227–9232, 2009.

[3] J.-J. Lee, H.-J. Choi, S.-H. Hyun, and H.-C. Im: Characteristics of aluminum reinforced g-LiAlO2 matrices for molten carbonate fuel cells, Journal of Power Sources 179(2), 504–510, 2008.

[4] H. Nirasawa, T. Kawachi, T. Ogawa, M. Hori, N. Tomimatsu, K. Nakagawa, H. Ohzu, and Y. Yamazaki: Stabilized matrix for molten carbonate fuel cell, Energy Conversion Engineering Conference, 1996. IECEC 96., Proceedings of the 31st Intersociety, Vol. 2, 1132–1137, 1996.

[5] K.Y. Patil, S. P. Yoon, J. Han, T.-H. Lim, S. W. Nam, and I.-H. Oh: The effect of lithium addition on aluminum-reinforced a-LiAlO2 matrices for molten carbonate fuel cells, International Journal of Hydrogen Energy 36(10), 6237–6247, 2011