FIELD: chemistry.
SUBSTANCE: membrane of a membrane-electrode unit of a fuel cell additionally contains an additive in form of oligomeric perfluorosulphonic acid. This additive dissolves in dopant acid and is introduced into the membrane during doping thereof. The membrane can be made from polybenzimidazole.
EFFECT: improved discharge characteristics of the fuel cell.
10 cl, 2 dwg, 6 ex
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