Technology:
A research team led by Atsunori Matsuda of Toyohashi University of Technology developed a high-performance electrolyte film for fuel cell with a reduced additive amount of phosphoric acid. Using an inorganic compound with a high degree of conductivity of the hydrogen ion, the research team successfully reduced the additive amount of phosphoric acid to one third. The maximum output of a fuel cell using this electrolyte film reached the world�s highest level of 350 mW per square centimeter at 160 degrees centigrade without humidification.
The inorganic compound used for the electrolyte film is a powder made by mixing inorganic heteropoly acid containing tungsten and silicon with hydrogen cesium sulfate in a ball mill. The research team induced a chemical reaction by mixing them while giving impact mechanically. Because the surface is activated, the hydrogen ion has a high degree of conductivity, and the high degree of conductivity is maintained throughout a wide range of temperatures. Accordingly, the operation temperature of a fuel cell is between minus 20 to plus 160 degrees centigrade.
A research team led by Atsunori Matsuda of Toyohashi University of Technology developed a high-performance electrolyte film for fuel cell with a reduced additive amount of phosphoric acid. Using an inorganic compound with a high degree of conductivity of the hydrogen ion, the research team successfully reduced the additive amount of phosphoric acid to one third. The maximum output of a fuel cell using this electrolyte film reached the world�s highest level of 350 mW per square centimeter at 160 degrees centigrade without humidification.
The inorganic compound used for the electrolyte film is a powder made by mixing inorganic heteropoly acid containing tungsten and silicon with hydrogen cesium sulfate in a ball mill. The research team induced a chemical reaction by mixing them while giving impact mechanically. Because the surface is activated, the hydrogen ion has a high degree of conductivity, and the high degree of conductivity is maintained throughout a wide range of temperatures. Accordingly, the operation temperature of a fuel cell is between minus 20 to plus 160 degrees centigrade.
The electrolyte film used for Honda�s fuel cell vehicle FCX
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