Graphite bipolar plate flow field transition region gas distribution structure
A gas distribution and transition zone technology, applied in electrical components, fuel cells, electrochemical generators, etc., can solve problems affecting the overall gas distribution
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[0020] The present invention will be further described below in conjunction with the accompanying drawings of the description.
[0021] Such as figure 1 As shown, the gas distribution structure of the graphite bipolar plate flow field transition zone includes a graphite bipolar plate 1, and the graphite bipolar plate 1 is provided with an inlet and outlet 6, a flow field transition zone 4, a working flow field 5, and a flow field transition zone 4 A gas guide strip 3 for guiding gas in layers is arranged inside. The flow field transition zone 4 includes a gas distribution zone in the flow field at the front end of the graphite bipolar plate 1 and a gas concentration zone in the flow field at the rear end. The gas guide strip 3 is a three-layer graded guide strip, including three first-layer gas guide strips 301, six second-layer gas guide strips 302, and 20 third-layer gas guide strips 303, each The layer guide bar divides the block formed by the flow guide of the previous l...
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