کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7746297 1498280 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of type of graphite conductive filler on the performance of a composite bipolar plate for fuel cells
ترجمه فارسی عنوان
اثر نوع پرکننده هدایت گرافیت بر عملکرد یک صفحه دو قطبی کامپوزیت برای سلول های سوختی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
The selection of appropriate conducting fillers and resins and the optimization of their compositions are crucial for the successful design of composite bipolar plates for fuel cells. In this paper, several graphite-based conductive fillers, i.e., natural and synthetic graphites with different sizes (10, 20, and 40 μm) and shapes (flakes and lumps), are combined with phenolic resin and tested in order to investigate the effects of the filler size and shape on the conductive network and mechanical strength of the resulting composite bipolar plates. The test results show that for the same filler size/loading and resin content, the composite plates made of natural graphite (NG) exhibit higher electrical conductivities and lower flexural strengths than those made of synthetic graphite (SG). In addition, flake-like graphite powders are superior to lump-like ones for the effective formation of conductive networks. As the graphite particle size is reduced, the flexural strength of the composite bipolar plate is improved, whereas the electrical conductivity is decreased. This study clearly elucidates the electrical and mechanical behaviors of graphite/phenolic-resin-based composite bipolar plates fabricated with different graphite filler types, sizes, and shapes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 262, 1 September 2014, Pages 332-336
نویسندگان
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