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Fuel battery and its assembly method

A fuel cell stack and fuel cell technology, used in fuel cells, fuel cell components, solid electrolyte fuel cells, etc., can solve problems such as prolonged working hours, excessive internal current impedance of fuel cells, and increased fuel cell volume and weight.

Inactive Publication Date: 2008-01-09
TATUNG COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not easy to accurately control the fixed torque one by one when manually screwing, and it is easy to prolong the working hours. Therefore, using this fixing method is likely to cause uneven pressure and may cause compression in the gas diffusion layer inside the fuel cell. If the rate is uneven, it is easy to cause the fuel cell to generate excessive internal current impedance, which reduces the working efficiency of the fuel cell.
In addition, the size of the nut and the gasket must be considered in the way of bolt clamping, so as to reserve a certain area on the end plate, which will increase the volume and weight of the fuel cell
Therefore, the above-mentioned bolt clamping method is not very ideal in the application of fuel cells

Method used

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  • Fuel battery and its assembly method
  • Fuel battery and its assembly method
  • Fuel battery and its assembly method

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Embodiment Construction

[0032] The implementation of the present invention will be described by specific specific examples below, so that those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0033] Regarding the fuel cell 1 of the present invention, please refer to FIG. 2 and FIG. 3 , the fuel cell stack 100 is mainly composed of a membrane electrode set 2, two flow field plates 3, two collector plates 4 and two end plates 5, The membrane electrode group 2 mainly provides the core of the reaction of the fuel cell 1; the flow field plate 3 mainly provides the reaction gas channel and the conduction of electrons; the collector plate 4 mainly provides the electricity generated by the export battery to supply the external load; in addition, the end plate 5 mainly provides clamping of all layers and gas inlet and outlet, and stabilizes the fuel cell 1 .

[0034] In the structure of the fuel cell 1 of the pr...

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Abstract

The invention is concerned with the fuel cell that produces with buckle groupware. It is to burke the double terminal board with the burke piece averagely to generate the average compression rate of the fuel cell gas diffusion fold, which enhance the working performance of the batter and shorten the producing hours and the weight, volume of the battery. The producing method is to locate the average auto-pressing providing producing press on the each fold of the fuel battery group on the weight bearing seat and use the effect of the average pressing to avoid the uneven pressing between each fold and improve the productivity of the battery group.

Description

technical field [0001] The present invention relates to a fuel cell, in particular to a fuel cell suitable for assembly with fastening components and an assembly method thereof. Background technique [0002] A traditional fuel cell is composed of a membrane electrode group, a flow field plate, a collector plate, and an end plate. The screw holes are used to clamp the end plate with bolts to fix the fuel cell, and use the entire plane to give a certain torque with the bolts around the end plate, and apply an average pressure to the collector plate and the flow field plate. [0003] However, in the related known technology, in order to avoid manual stacking and then locking the bolts separately, resulting in uneven pressure, and then causing stack shift, resulting in poor airtight effect between stacks and uneven clamping pressure, The fuel cell stack 100 is assembled with the assembly press 10 . It can be seen from FIG. 1 that the press block 26 of the known assembly press ...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/02H01M4/86H01M8/00H01M8/1004H01M8/2404
CPCY02E60/521Y02E60/50
Inventor 张孙伟陈建文林明宪
Owner TATUNG COMPANY
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