Fuel cell bipolar plate
A fuel cell and bipolar plate technology, which is applied to fuel cells, circuits, electrical components, etc., can solve the problems of low power generation efficiency of fuel cells, and achieve the effect of taking into account drainage performance and moisturizing performance, and enhancing drainage performance.
Pending Publication Date: 2021-01-05
YINLONG ENERGY CO LTD
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[0006] The main purpose of the present invention is to provide a fuel cell bipolar plate to solve the problem in the related art that the membrane electrode at the inlet of the fuel cell bipolar plate is relatively dry, resulting in low power generation efficiency of the fuel cell
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...
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The invention provides a fuel cell bipolar plate. The fuel cell bipolar plate comprises a plate body anda flow channel groove, wherein the flow channel groove is formed in the plate body and further comprises an inlet and an outlet, the flow channel groove further comprises a plurality of first flow channels and a plurality of second flow channels, the first flow channels and the second flow channels are arranged between the inlet and the outlet, the second flow channels are located on the downstream portions of the first flow channels in the flowing direction of the flow channel groove, and the first flow channels and the second flow channels are communicated with one another; the number of the first runners is larger than that of the second runners. According to the fuel cell bipolar plate, a problem that the power generation efficiency of the fuel cell is low due to the fact that the film electrode at the inlet of the bipolar plate of the fuel cell is dry in the prior art is effectively solved.
Description
technical field [0001] The invention relates to the technical field of fuel cells, in particular to a fuel cell bipolar plate. Background technique [0002] A fuel cell is a power generation device that directly converts the chemical energy in fuel and oxidant into electrical energy through an electrochemical reaction. It has the advantages of high energy conversion rate, no pollution, and low noise. [0003] The bipolar plate is an important component of the fuel cell. Each set of bipolar plates includes a cathode plate and an anode plate. The air flow channel is designed on the cathode plate, and the hydrogen flow channel is designed on the anode plate. [0004] The flow channel undertakes multiple tasks such as evenly distributing the gaseous reactants and purging the generated water. When the fuel cell is in operation, the water generated by the reaction will move toward the outlet of the flow channel driven by the gas flow of the reactants. Therefore, from the inlet o...
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IPC IPC(8): H01M8/0258
CPCH01M8/0258Y02E60/50
Inventor 李宁李永业赵红芳栾琳肖春辉黎仕兄季孟波蒋世用马学明
Owner YINLONG ENERGY CO LTD