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Tree-shaped channel structure based double pole plate of hydrogen cell

A fuel cell and bipolar plate technology, which is applied to fuel cells, circuits, electrical components, etc., can solve the problems of low power density and simple structure of the stack, and achieve the effect of small resistance along the path and improved power density.

Active Publication Date: 2019-05-31
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing bipolar plate flow structure is too simple, resulting in low power density of the stack, so a bipolar plate that can effectively increase the power density of the stack is needed

Method used

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  • Tree-shaped channel structure based double pole plate of hydrogen cell
  • Tree-shaped channel structure based double pole plate of hydrogen cell
  • Tree-shaped channel structure based double pole plate of hydrogen cell

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Embodiment Construction

[0045] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following description The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] In the description of the present invention, it is to be understood that when a component is said to be "connected" to another component, it may be directly connected to the other component or there may be an intervening component at the same time. When a component is said to be "set on" another component, it ca...

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Abstract

The invention discloses a tree-shaped channel structure based double pole plate of a hydrogen cell, relates to the technical field of fuel cells. The double pole plate comprise rectangular areas, eachrectangular area comprises an outlet channel and n levels trapezoid channels in tree-shaped distribution, the ith level of trapezoid channel is communicated with the inlet of the (i+1)th trapezoid channel, the length Li of the ith level of trapezoid channel is greater than the length Li+1 of the (i+1)th trapezoid channel, the inlet width Di of the ith level of trapezoid channel is greater than the outlet width D'i of the same, the inlet width Di of the ith level of trapezoid channel is greater than the inlet width Di+1 of the (i+1)th trapezoid channel, and the outlet of the nth level of trapezoid channel is communicated with an outlet channel. The tree-shaped channel structure based double pole plate of the hydrogen cell can effectively improve the power density of an electric pile.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a hydrogen fuel cell bipolar plate based on a tree-like flow channel structure. Background technique [0002] With the rapid development of the global economy, the continuous development and utilization of chemical fuels have caused serious problems such as energy shortage and environmental pollution. In order to develop clean energy, countries around the world are vigorously developing hydrogen energy technology. As an important part of hydrogen energy technology, the research and development and application of hydrogen fuel cells are in the ascendant. [0003] Generally, a hydrogen fuel cell consists of a hydrogen fuel cell stack, a hydrogen circulation pump, an air compressor, a humidifier, a cooling system and a control system. As the core component of a hydrogen fuel cell, the hydrogen fuel cell stack is mainly composed of bipolar plates, membrane electrodes, etc. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0258
CPCY02E60/50
Inventor 陈文刘石刘志刚魏增福申原宋景慧黄正韩丹
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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