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A variable cross-section tree fuel cell channel structure

A fuel cell and variable cross-section technology, which is applied to fuel cells, circuits, electrical components, etc., can solve the problems of low diffusion mass transfer efficiency and large liquid flow resistance, and achieve the effect of improving liquid mass transfer efficiency and reducing liquid flow resistance

Active Publication Date: 2020-11-10
SHAANXI WEINA MEDIA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing technologies are flow channel structures with equal cross-section, such as serpentine, spiral and parallel flow channels. The closer to the outlet of the flow channel, the higher the gas content of the cross-section, the greater the liquid flow resistance, and the lower the diffusion and mass transfer efficiency.

Method used

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  • A variable cross-section tree fuel cell channel structure
  • A variable cross-section tree fuel cell channel structure
  • A variable cross-section tree fuel cell channel structure

Examples

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Embodiment Construction

[0026] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "top", "bottom", "inner", "side", The orientation or positional relationship indicated by "one end", "one side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have Certain orientations, constructed and operative in certain orientations, therefore are not to be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In...

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Abstract

The invention discloses a variable cross-section tree-shaped fuel battery runner structure. The variable cross-section tree-shaped fuel battery runner structure comprises a fluid preparation channel and a tree-shaped runner which are separately arranged on a cathode / anode plate, wherein the fluid preparation channel is arranged at the periphery of the anode / cathode plate; one end of the fluid preparation channel is connected with the inlet on the cathode / anode plate, and the other end of the fluid preparation channel is connected with the tree-shaped runner; and the tree-shaped runner is a variable cross-section runner. The variable cross-section tree-shaped fuel battery runner structure disclosed by the invention further can reduce fluid flowing resistance, is beneficial for discharging gas bubbles, and improves liquid mass transfer efficiency.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a variable cross-section tree fuel cell flow path structure. Background technique [0002] In fields such as field operations and consumer electronics, there is a greater demand for portable fuel cells. At the current stage of incomplete hydrogen energy infrastructure, the supply of hydrogen sources limits the application and promotion of hydrogen fuel cells. Because methanol is easy to carry and replace, direct methanol fuel cells have greater advantages over hydrogen fuel cells. [0003] In the anode of the direct methanol fuel cell, the methanol aqueous solution in the flow channel reaches the catalytic layer through the small holes in the diffusion layer to generate hydrogen ions, electrons and carbon dioxide gas. Carbon dioxide gas will generate bubbles at the pores of the diffusion layer, and its dynamic growth behavior can be used figure 1 express. It ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/0258H01M8/0263
CPCH01M8/0258H01M8/0263Y02E60/50
Inventor 蒲亮邵翔宇徐玲玲唐鑫张胜棋
Owner SHAANXI WEINA MEDIA CO LTD