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Novel high-efficiency humidifier for fuel cells

A humidification device and fuel cell technology, which is applied to fuel cells, fuel cell additives, circuits, etc., can solve problems such as the inability to ensure constant air temperature and humidity of fuel cells, unstable fuel cell operation performance, and complex operation procedures. , to achieve stable humidification effect, reduce volume and area, and achieve the effect of compact overall structure

Inactive Publication Date: 2013-03-27
余东风 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Due to the influence of the external environment, when the external temperature changes and the relative humidity of the external air changes greatly, the temperature and humidity of the air sent from the humid-heat tumbler will deviate from the target control value under the same working condition and different environments, and it cannot guarantee that the fuel will enter The constant temperature and humidity of the battery air will cause unstable operation performance of the fuel cell
Therefore, it is necessary to modify the control parameters of the humidification drum and the humidification motor to make the fuel cell adapt to the change of the environment, which causes inconvenience in control
Moreover, the current humidification device has more external auxiliary equipment, and the operating procedure is more complicated, which is not conducive to operation.

Method used

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  • Novel high-efficiency humidifier for fuel cells
  • Novel high-efficiency humidifier for fuel cells
  • Novel high-efficiency humidifier for fuel cells

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Experimental program
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Effect test

Embodiment 1

[0052] Figure 1-8 A fuel cell high-efficiency humidifying device according to an embodiment of the present invention is shown, and this embodiment will be described in detail below in conjunction with the accompanying drawings.

[0053] Figure 8 It is a schematic diagram of the integrated structure of a fuel cell humidification device, which includes a fuel cell stack 801 and a humidification device directly connected to the fuel cell stack 801, wherein the fuel cell humidification device includes: an inner end plate 802 stacked in sequence, and three humidification plates 803 , 804 and 805, the outer end plate 806, and the heat and humidity exchange film arranged between the inner end plate and the humidifying plate, between the humidifying plate and the humidifying plate, and between the humidifying plate and the outer end plate. There are hydrogen gas inlet / outlet holes 103 and hydrogen gas outlet / intake holes 101 on the outer surface of the outer end plate, as well as d...

Embodiment 2

[0083] The humidifying device in embodiment 2 is basically the same as the device in embodiment 1, except that the way hydrogen enters and leaves the fuel cell stack is changed. In embodiment 2, a hydrogen conduit is inserted into the hydrogen inlet and outlet hole, and the hydrogen gas Directly enters or exits the fuel cell stack through conduits. Similarly, the hydrogen inlet and outlet holes of the humidification plate and end plate can be slightly changed according to the shape of the conduit. At this time, there is no need to seal the hydrogen inlet and outlet holes in the humidification stack, as long as the hydrogen inlet and outlet holes can be inserted into the gas conduit. Realize the purpose of simple and practical setting and reduce the difficulty of making.

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Abstract

The invention discloses a novel high-efficiency humidifier for fuel cells, which is a device for humidifying hydrogen oxygen cells. The fuel cell reaction is finished by oxygen carried in the air. The device is an air tail gas humidifier, which comprises an outer end plate, a humidifying plate, a moist and heat exchange membrane, a sealing device (a sealing strip or sealant), and an inner end plate. The novel high-efficiency humidifier does not need a temperature and humidity regulator, is an automatic regulation device, and has the characteristics of simple structure, small volume, light weight, low cost, convenient disassembly and assembly and integration, and the like.

Description

technical field [0001] The invention relates to a fuel cell humidifier and belongs to the field of electrical cells. Background technique [0002] An electrochemical fuel cell is a device that can convert hydrogen and oxidants into electrical energy and reaction products. The internal core component of the device is a membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode (MEA) has a proton exchange membrane, The film is composed of two porous conductive materials, such as carbon paper, sandwiched between two sides. On the two boundary surfaces of the membrane and the carbon paper, there are even and finely dispersed catalysts for initiating electrochemical reactions, such as metal platinum catalysts. Conductive objects can be used on both sides of the membrane electrode to draw the electrons generated during the electrochemical reaction through an external circuit to form a current loop. [0003] At the anode end of the membrane elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/04119
CPCY02E60/50
Inventor 余东风冀中华曾宪林
Owner 余东风