HC Plastics News:
Asahi Glass Co., Ltd. (AGC) has developed a fluorine-based electrolyte polymer for fuel cells that is thinner and more flexible and has more than five times the durability of the original electrolyte membrane.
When the fuel cell generates electricity, water is generated in the battery cell, and the electrolyte membrane swells and swells, and then shrinks and contracts after power generation stops. This process is repeated, resulting in the application of complex mechanical stress to the electrolyte membrane, which eventually ruptures and can no longer function as a membrane.
Asahi Glass researched the chemical structure of the polymer and developed a new type of electrolyte polymer with better toughness, which can reduce and disperse mechanical stress, and maintain the three-dimensional microstructure even if it is repeatedly deformed, which is not easy to deteriorate. Although the thickness of the new electrolyte membrane is reduced to 5 micrometers, it still exhibits a dry-wet cycle durability of more than 5 times that of the original electrolyte membrane, and successfully breaks the relationship between the thin film formation and the durability of the dry-wet cycle.
(Source of this column: Japan Science and Technology Promotion Agency: Chen Chao, a reporter in Japan) 
Editor in charge: Honor
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