Proton exchange membrane fuel cell

A proton exchange membrane, fuel cell technology, applied in fuel cells, solid electrolyte fuel cells, fuel cell additives, etc., can solve problems such as increasing system complexity, volume and weight, membrane loss of conductive protons, and battery performance degradation. To achieve the effect of simplifying the size and weight, reducing the humidification system

Active Publication Date: 2010-04-28
中国船舶重工集团公司第七一二研究所
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AI Technical Summary

Problems solved by technology

A decrease in water content in the membrane causes a linear decrease in its conductivity, which leads to a decrease in battery performance
This situation is more serious in the battery pack. When the membrane of a single cell in the battery pack loses water and dries up, the membrane loses the ability to conduct protons, so the dehydration area spreads to the side, and fina...

Method used

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Embodiment Construction

[0032] The present invention is further described as follows in conjunction with accompanying drawing and embodiment:

[0033] Such as figure 1 , 2 , 3, and 4 show a proton exchange membrane fuel cell, which consists of a hydrogen supply device 1, an electric stack 5, a water / heat management system 4, and a pressure flow rate control module 3, and is used to realize the control of the hydrogen circulation pump pair The tail gas control module 6 is composed of hydrogen tail gas recycling; the side of the stack 5 is also equipped with a two-way air intake device 2 for humidifying and cooling the battery by using the generated water 10 through the flowing air 11 . The air two-way air intake device 2 is composed of an inlet fan 2.1 and an outlet fan 2.2; the inlet fan 2.1 is installed on one side of the stack 5, and the outlet fan 2.2 is installed on the other side of the stack 5, opposite to the inlet fan 2.1. There is an air passage 8 between the inlet fan 2.1 and the outlet f...

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Abstract

The invention relates to a proton exchange membrane fuel cell, comprising a hydrogen supply equipment, a galvanic pile, a water/ heat management system, a pressure flow rate control module and a tail gas control module, wherein the tail gas control module is used for controlling a hydrogen circulating pump to recycle hydrogen tail gas; the side of the galvanic pile is provided with an air bidirectional air intake device which uses flowing air to generate water so as to moisten and cool cells. The invention improves the moistening mode and has the advantages of high energy conversion efficiency, fast low-temperature starting, no pollution to environment, no noise and the like and is suitable for requirements of different powers.

Description

technical field [0001] The invention relates to a proton exchange membrane fuel cell, which is especially suitable for the hydrogen / empty proton exchange membrane fuel cell. Background technique [0002] Proton exchange membrane fuel cells have the advantages of high energy conversion efficiency, adaptability to different power requirements, fast start-up at low temperature, no pollution to the environment and no noise, so they can be well used in electric vehicles, submarines and mobile power sources. [0003] Proton exchange membrane fuel cell is a power generation device that directly converts chemical energy stored in fuel and oxidant into electrical energy. The working principle is actually the reverse process of electrolysis of water. Hydrogen dissociates into protons and electrons under the action of a catalyst. Protons pass through the proton exchange membrane to the cathode, and electrons pass through an external circuit to the cathode. They react with oxygen to f...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/24H01M8/04H01M8/06H01M8/04014H01M8/04119H01M8/1007H01M8/2457
CPCY02E60/521Y02E60/50
Inventor 丁刚强郭丽黄友桥吴林君张家新
Owner 中国船舶重工集团公司第七一二研究所
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