Possibility of Non-humidified Operation for Fuel Cells using Electrolyte of Protonic Conductors of Phosphate Glasses with Sr-Ba-Pb Series

• SUMI Hirofumi

  Toho Gas Co., Ltd., Fundamental Research Department

• MIZUTANI Yasunobu

  Toho Gas Co., Ltd., Fundamental Research Department

• TAKAHASHI Makoto

  Chubu University, Department of Applied Chemistry

• SAKURAI Makoto

  Chubu University, Department of Applied Chemistry

• WATANABE Makoto

  Chubu University, Department of Applied Chemistry

• ABE Yoshihiro

  Chubu University, Department of Applied Chemistry

Bibliographic Information

Other Title

• プロトン伝導性Sr-Ba-Pb系リン酸塩ガラスを電解質に用いた燃料電池の無加湿運転の可能性
• プロトン デンドウセイ Sr Ba Pbケイ リンサンエン ガラス オ デンカイシツ ニ モチイタ ネンリョウ デンチ ノ ムカシツウンテン ノ カノウセイ

Abstract

Dependence of water partial pressure (P_H2O) on the protonic conductivities of phosphate glasses made by a condensation-polymerization process below liquidus temperature has been investigated. Protonic conductivities of Sr-Ba-Pb + W-phosphate glass at 373 K were 4×10^-5 and 6×10^-4 S/cm, at P_H2O = 0.035 and 0.485 atm, respectively. The P_H2O dependence of conductivity for this glass is lower than that for Nafion. When operating under a non-humidified condition, the conductivity remains unchanged with time, and the fuel cell using the glass electrolyte was able to generate power continuously. The phosphate glass is one of the new candidate materials for electrolyte used in fuel cells.

Journal

• Electrochemistry

  Electrochemistry 73 (3), 194-198, 2005-03-05

  The Electrochemical Society of Japan

Keywords

• Phosphate Glass
• Fuel Cell
• Electrolyte
• Superprotonic Conduction
• Non-humidified Operation

Details

• CRID: 1390845713073827712
• NII Article ID: 10013817988
• NII Book ID: AN00151637
• DOI: 10.5796/electrochemistry.73.194
• ISSN: 21862451
• ISSN: 13443542
• NDL BIB ID: 7272664
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7272664
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/73/3/73_194/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Allowed