Fuel cell humidifier

Abstract

This invention discloses one fuel battery wet device, which comprises the following parts: isolation board, end board and wet unit, wherein, the isolation board two sides are located with one wet unit tightened by the outside end board; The total wet device is isolated into two wet areas through isolation board and the board has only the hole for second wet hot air flow and not for the reaction gas flow; two reaction gas are wetted in each area and the wet hot air passes isolation board from one side to other side to wet two reaction gas.

Description

1. Technical field [0001] The invention relates to a fuel cell, in particular to a fuel cell humidifier. 2. Background technology [0002] A fuel cell stack is a device that generates electricity through the electrochemical reaction of hydrogen fuel and oxidant. The core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA), which consists of two porous gas diffusion layers and a proton exchange membrane sandwiched between them. An electrochemical catalyst is attached on the interface of the proton exchange membrane and the gas diffusion layer (such as carbon paper). [0003] Another important component of the fuel cell stack is the bipolar plates. The surface of the bipolar plate contains at least one gas diversion groove. The gas diversion groove provides a channel for the gas participating in the electrode reaction to reach the membrane electrode, and the reaction product (such as water) generated in the reaction is discharg...

AI Technical Summary

Problems solved by technology

[0013] 1. It is necessary to add pure water to the humidifier frequently, which increases the difficulty of maintenance of the fuel cell system

[0014] 2. It is necessary to provide a heat source to the humidifier to ensure the temperature and humidity of the reaction gas, which reduces the efficiency of the fuel cell and increases the cost of the fuel cell system

[0016] 1. The structure is complex, which increases the difficulty of maintenance of the fuel cell system

[0017] 2. The rotation of the motor needs to consume a part of energy, which reduces the overall efficiency of the fuel cell

[0018] 3. Hydrogen cannot be humidified

However, the disadvantage of this humidifier is that it cannot humidify two reaction gases (such as hydrogen and air) at the same time.

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