Fuel cell composite material double polar plate and its making method

A composite material and fuel cell technology, used in fuel cells, fuel cell parts, battery electrodes, etc., can solve the problem of high cost and achieve the effects of low processing cost, high comprehensive performance and low cost

Inactive Publication Date: 2005-03-09
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

"Fluororesin has better processability and corrosion resistance, but its own cost is higher

Method used

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  • Fuel cell composite material double polar plate and its making method
  • Fuel cell composite material double polar plate and its making method
  • Fuel cell composite material double polar plate and its making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Mix 100 g of bisphenol A epoxy resin and 16 g of triethanolamine evenly, add 125 g of reagent graphite powder, and mix for 15 minutes. (2) Transfer a certain amount of the above-mentioned mixture into the molding die, and close the dies. (3) The mold is placed in a hydraulic press equipped with heating and temperature control devices, and molded at a temperature of 120° C. and a pressure of 10 MPa, and the molding time is 2 hours. (4) After the molding process is finished, take out the product and continue curing at 100°C for 24 hours to obtain a finished product.

Embodiment 2

[0040]With embodiment 1, only in the step (2), the compound is divided into two parts on average, and one of them is taken in the lower mold of packing die mold, and spreads flat; Place the thick perforated zinc plate of 1.5mm on it; Fill with another mix and spread evenly; close the upper mold. In step (3), the temperature is 80° C., and the molding time is 4 hours.

Embodiment 3

[0042] With embodiment 2, just add reagent graphite powder 480g, polyparaphenylene terephthalamide (PPTA) fiber 20g in the step (1). The 1.5mm thick perforated zinc plate in step (2) is changed into a 1mm thick perforated copper plate. In step (3), the temperature is 150° C., and the molding time is 30 minutes.

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Abstract

This invention relates to a composite material double-pole plate and its preparation method for fuel batteries. The double-pole plate is composed of resinoid and fillers, uniformly distributed flow fields are on the upper and lower surfaces of the double pole plate and a metal plate is nested in the composite material. The method goes as follow: 1, mixing the resinoid and curing agent to be mixed with fillers, 2, transferring the mixed material into a die-pressing mold to be closed, if a sandwich compound double-pole plate is made, a metal nested plate should be set at the center of the mixed material to be wrapped uniformly by it than to close the mold, 3, putting the mold into a hydraulic machine to be die-pressed to form 4, continuing to cure the double pole to get the product.

Description

technical field [0001] The invention relates to fuel cell technology, in particular to a fuel cell composite material bipolar plate and a manufacturing method thereof. Background technique [0002] Polymer electrolyte membrane fuel cell is a clean and efficient new energy source. It uses a solid polymer electrolyte membrane, replacing the traditional liquid electrolyte. Batteries have the characteristics of small size, light weight, cleanliness, high efficiency, and mild operating conditions. They are expected to replace internal combustion engines and become the main energy source in the fields of transportation, power generation, aerospace, and submarine drives; they can also be used for small electronic communication equipment, field equipment, etc. power supply and as a military power supply. Its application is of great significance to the fields of energy and environment. Depending on the fuel used, polymer electrolyte membrane fuel cells generally include hydrogen f...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M8/0223H01M8/0241H01M8/0258
CPCY02E60/50Y02P70/50
Inventor 辛勤陈维民孙公权梁振兴任素贞
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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