Performance of Intermediate Temperature Fuel Cells with Proton Conducting Electrolytes Synthesized with Diammonium Hydrogen Phosphate (1)

Abstract:

The (ZrO₂-1.6P₂O₅)-PTFE composite electrolytes have been prepared by mixing PTFE powders with different particle sizes and the shell-core-type ZrO₂-1.6P₂O₅ electrolyte, synthesized by solid state reaction with diammonium hydrogen phosphate, to improve the mechanical strength of the electrolyte. The H₂ gas permeability decreased and the cell performances improved with decreasing PTFE-particle size. The aging at 0.4 V above 443 K enhanced the ITFC performance owing to the penetration of the electrolyte to the carbon paper. The maximum output power enhanced by 63% after 15 h of aging at 573 K.

• Periodical: Key Engineering Materials (Volume 485)
• Pages: 145-148
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.485.145
• Online since: July 2011
• Authors: Minoru Yonekawa, Shigeki Kano, Hidenobu Shiroishi, Hikaru Tateishi, Yusuke Ayato, Morihiro Saito, Jun Kuwano
• Keywords: Fuel Cell (FC), Intermediate Temperature, Proton Conductive Electrolyte, Solid Electrolyte

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