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Dual electrode plate, method for preparing dual electrode plate and PEM fuel cell

A fuel cell and bipolar plate technology, which is applied to fuel cell parts, solid electrolyte fuel cells, battery electrodes, etc., can solve problems such as instability, and achieve the effects of short production time, short production cycle and low price.

Inactive Publication Date: 2009-06-10
VALTION TEKNILLINEN TUTKIMUSKESKUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, conventional composite bipolar plate materials are not stable at high operating temperatures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] In this example, a composition of a bipolar plate and a method of producing the bipolar plate will be shown in detail. The amount of each component is given in parts by hundred (phr). The bipolar plate composition contains the following components:

[0046] Resin:

[0047] 30phr Bisphenol F

[0048] 60phr Bisphenol A, and

[0049] 10phr epoxidized 1,6-hexanediol as a reactive viscosity cutter

[0050] Hardener:

[0051] 8phr boron trichloride monoethylamine

[0052] Graphite filling with a D90 (laser malvern) value of 60-80 microns

[0053] First, the resin composition and curing agent were premixed, then 20% by volume of the premixed resin / curing agent mixture was combined with 80% by volume of the graphite filler. The mixture is combined in a suitable batch mixer or extruder to obtain a homogeneous mass.

[0054] The prepared mass is then placed in a compression mold and pressed at elevated temperature to form a bipolar plate. For the resin / curing agent syste...

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PUM

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Abstract

The invention relates to a bipolar plate, a method for preparing the bipolar plate and a PEM fuel cell. The bipolar plate is made from a composition containing at least epoxy resin, graphite filler and a metal amine complex compound taken as an epoxy resin curing agent. The method also relates to the method for preparing the bipolar plate and application of the bipolar plate in the PEM fuel cell.

Description

technical field [0001] The present invention relates to bipolar plates, methods of making bipolar plates and fuel cells using said bipolar plates. Background technique [0002] The bipolar plate is a multifunctional component inside the PEM (Proton Exchange Membrane, proton exchange membrane, also known as polymer electrolyte membrane) fuel cell stack. It inter alia connects individual fuel cells in series and separates them to form a fuel cell stack with the required voltage, helps to distribute fuel gas and oxygen evenly over the entire active surface area of ​​the MEA, and conducts electrical current from the anode of one cell to the The cathode of the next cell, which facilitates water management within the cell, supports the thin membrane and electrodes and withstands the closing forces of the stack assembly. [0003] In fuel cells, metal bipolar plates, carbon bipolar plates, and carbon composite bipolar plates are commonly used as bipolar plates. Metals were chosen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M4/86H01M8/10H01M4/88
CPCY02E60/50
Inventor S·阿尔托P·考拉南J·伊霍南P·科索南
Owner VALTION TEKNILLINEN TUTKIMUSKESKUS