کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1287588 973228 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A polymer electrolyte fuel cell life test: 3 years of continuous operation
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
A polymer electrolyte fuel cell life test: 3 years of continuous operation
چکیده انگلیسی

Implementation of polymer electrolyte fuel cells (PEMFCs) for stationary power applications requires the demonstration of reliable fuel cell stack life. One of the most critical components in the stack and that most likely to ultimately dictate stack life is the membrane electrode assembly (MEA). This publication reports the results of a 26,300 h single cell life test operated with a commercial MEA at conditions relevant to stationary fuel cell applications. In this experiment, the ultimate MEA life was dictated by failure of the membrane. In addition, the performance degradation rate of the cell was determined to be between 4 and 6 μV h−1, at the operating current density of 800 mA cm−2. AC impedance analysis and DC electrochemical tests (cyclic voltammetry and polarization curves) were performed as diagnostics during and on completion the test, to understand materials changes occurring during the test. Post mortem analyses of the fuel cell components were also performed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 158, Issue 1, 14 July 2006, Pages 446–454
نویسندگان
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