Metal bipolar plate flow field runner structure of fuel cell

A metal bipolar plate, fuel cell technology, applied in the direction of fuel cells, fuel cell components, circuits, etc., can solve the problems of increased cost, increased performance requirements of booster equipment, and higher equipment selection requirements.
CN110993985AActive Publication Date: 2020-04-10DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2020-04-10

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Abstract

The invention provides a metal bipolar plate of a fuel cell. The bipolar plate comprises a fuel gas inlet, a fuel gas outlet, an oxidant inlet, an oxidant outlet, an oxidant flow field and a fuel gasflow field, the oxidant flow field and the fuel gas flow field are respectively positioned on the left side and the right side of the bipolar plate, each of the oxidant flow field and the fuel gas flow field comprises M flow channels, and M is an integer greater than or equal to 1; and n discrete type protruding parts are arranged in each flow channel, the protruding parts are formed by protrudingbipolar plates located at the bottoms of the flow channels, N is an integer, and N is larger than or equal to 1. The oxidant inlet and the oxidant outlet are communicated through a flow channel in the oxidant flow field, and the fuel gas inlet and the fuel gas outlet are communicated through a flow channel in the fuel gas flow field. Through the plurality of convex parts arranged in the flow field flow channel, the mass transfer capability of the fuel cell is improved, and the performance of the fuel cell is further improved.
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Description

technical field

[0001] The invention relates to the technical field of fuel cells, in particular to a bipolar plate flow field channel structure for improving the performance of fuel cells and its application in fuel cells. Background technique

[0002] Proton exchange membrane fuel cell (PEMFC) (hereinafter referred to as fuel cell) relies on electrochemical reactions to directly convert chemical energy stored in fuel gas (such as hydrogen) into electrical energy. The fuel cell power generation process has the characteristics of fast start-up at room temperature, high energy conversion efficiency, green and pollution-free exhaust gas, and safety. It can be widely used in fixed power stations, mobile power stations, aviation (sky) power generation, underwater equipment power generation, marine generators, and vehicle-mounted power generation. machine, field emergency power supply, portable power supply and other fields. In the world, with the increasing awareness of environ...

Claims

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