Straight-runner low-temperature and low-voltage rectangular fuel cell

Abstract

The invention discloses a straight-runner low-temperature and low-voltage rectangular fuel cell, which comprises an upper intake pipe connecting plate and a lower exhaust pipe connecting plate, wherein at least two carbon polar plates which are vertically distributed in parallel are tightly pressed between the intake pipe connecting plate and the exhaust pipe connecting plate, an exchange membrane is clamped between every two adjacent carbon polar plates, the upper surface and the lower surface of each carbon polar plate are respectively provided with a plurality of channels which are parallel to one another, and the line type of the cross section of each channel is a sine curve. According to the fuel cell disclosed by the invention, the volume of gas runners is increased, the structural utilization rate is increased, and the effective working area of the fuel cell is increased.

Description

technical field [0001] The invention belongs to the field of new energy and relates to fuel cell technology, in particular to a low-temperature, low-voltage rectangular fuel cell with a direct path, which can be applied to fuel cell electric vehicles. Background technique [0002] In recent years, due to the increasing shortage of oil resources and the problems of environmental pollution, electric vehicles have begun to move towards industrialization. Among all kinds of electric vehicles, fuel cell electric vehicles have the advantages of energy saving, environmental protection and high energy utilization efficiency, and have become the target of technological competition among developed countries and major automobile manufacturers. At present, many fuel cell electric vehicles that have been displayed or demonstrated have been developed for testing. [0003] In fuel cell technology, in order to be suitable for vehicle loading, vehicle fuel cells are assembled in modular rec...

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Problems solved by technology

[0004] At present, a large number of fuel cells are simple in structure, and there are some shortcomings or shortcomings as follows: first, because the carbon plate is a brittle material, in order not to affect the strength of the carbon plate, the square groove opened by the carbon plate cannot be too large; second, After the two adjacent carbon plates are compressed, the contact area of ​​the gas flow channel is not large; thirdly, the physical contact area of ​​the exchange membrane part of the two adjacent carbon plates is relatively large, which reduces the fuel cell energy consumption. effective working area

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