Combined dual-polar plate for fuel cell

A fuel cell and bipolar plate technology, which is applied to fuel cells, fuel cell components, battery electrodes, etc., can solve the problems of short service life, easy corrosion, and high manufacturing costs, and achieves lower manufacturing costs and better corrosion resistance. Effect

Inactive Publication Date: 2008-01-30
YUAN ZE UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. High manufacturing cost
Existing carbon-carbon composite materials are used in bipolar plates of fuel cells. Although they have excellent power generation efficiency, the manufacturing cost is too high. If the cost of a single bipolar plate is several thousand NT dollars, ten bipolar plates A fuel cell made of stacked plates costs tens of thousands of NT dollars, which is out of proportion to the generated electricity, resulting in low market competitiveness, let alone the popularization of fuel cells
[0004] 2. Easy to corrode
Existing

Method used

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Examples

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Example Embodiment

[0033] The present invention is a composite bipolar plate of a fuel cell, please refer to FIG. 1 to FIG. 3 , including a bipolar plate unit 10 , and the bipolar plate unit 10 has a first surface 101 and a second surface 102 , the bipolar plate unit 10 includes:

[0034] A conductive plastic plate portion 20 is provided with at least a first plastic surface 201 and a second plastic surface 202 , the first plastic surface 201 is located on the first surface 101 of the bipolar plate 10 ; the conductive plastic plate portion 20 is on the Have at least:

[0035] a plastic fluid inlet 21;

[0036] a plastic fluid outlet 22;

[0037] The flow channel 23 is recessed on the first plastic surface 201 of the conductive plastic plate portion 20;

[0038] A metal plate portion 30 is provided with at least a first metal surface 301 and a second metal surface 302, the first metal surface 301 is located on the second surface 102 of the bipolar plate unit 10; the second metal surface 302 is co

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PUM

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Abstract

A composite bipolar plate for fuel cells comprises a bipolar plate unit which comprises a first face and a second face, wherein, the bipolar plate unit comprises a conductive plastic plate part which is provided with at least a second plastic face and a first plastic face which is positioned on the first face of the bipolar plate; the conductive plastic plate part is provided with at least a plastic fluid inlet, a plastic fluid outlet and a flow channel which is concavely arranged on the first plastic face on the conductive plastic plate part; a metal plate part is provided with at least a second metal face and a first metal face which is arranged on the second face of the bipolar plate unit, the second metal face is combined with the second plastic face. So the bipolar plate unit is in the structure of no pores, has high conductive degree, high intensity and corrosion resistance. The invention can greatly reduce the manufacturing cost, has very good corrosion resistance and can ensure mass production of complex microstructure products.

Description

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Claims

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Application Information

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Owner YUAN ZE UNIV
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