Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for Making Catalyst and Gas Diffusion Hybrid Electrode Member(s) for Fuel Cell

a fuel cell and hybrid electrode technology, applied in bipolar electrodes, active material electrodes, cell components, etc., can solve the problems of increasing catalyst and cell efficiency, increasing production costs, etc., and achieves the effect of reducing cost and simplifying production

Active Publication Date: 2019-12-05
TAICHI METAL MATERIAL TECH LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a simplified and cost-effective process for making fuel cell electrodes by integrating multiple layers of catalyst and gas diffusion. This results in a single membrane that can be used in fuel cells.

Problems solved by technology

However, for making the assemblies of so many membranes, including: proton exchange membrane, catalyst coated membranes and gas diffusion layers, it may be a complex process requiring complex procedures, possibly increasing production cost therefor.
However, such coating or printing of catalyst composition on the polymer substrates may be de-bonded. peeled, or even broken to thereby decrease the efficiency of the catalyst and the cell.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for Making Catalyst and Gas Diffusion Hybrid Electrode Member(s) for Fuel Cell
  • Process for Making Catalyst and Gas Diffusion Hybrid Electrode Member(s) for Fuel Cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009]As shown in FIG. 1, a carbon fiber core 1 is provided for further processing in order to form the related carbon fiber core plated or circumferentially plated with metal, alloy, metallic glass, and catalyst.

[0010]Carbon fiber core 1 contains a plurality of carbon fibers by integrating or forming a bundle of the plurality of carbon fibers. The fibers may be dense or loose by adjusting the number of fibers as contained in each carbon fiber core.

[0011]The carbon fiber core 1 is circumferentially plated or clad with an alloy film, a metallic glass film or a metal film 11 around the carbon fiber core by sputtering or other processes to be an alloy or metal plated carbon fiber core 2 as shown in FIG. 1.

[0012]The carbon fiber core 1 is circumferentially plated or clad with a thin catalyst film 12 such as platinum film around the carbon fiber core 1 (such as by PVD process) to form a catalyst-plated carbon fiber core 3 as shown in FIG. 1. The carbon fiber core 1 containing the carbon ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A process for making a catalyst and gas diffusion hybrid electrode member (or members) adapted for use in a fuel cell by integrally bonding a plurality of catalyst and gas diffusion layers to be a catalyst and gas diffusion hybrid electrode member to be inserted between two bipolar plates of the fuel cell for simplifying the production and decreasing the cost.

Description

BACKGROUND OF THE INVENTION[0001]U.S. Pat. No. 7,416,804 to E.I. du pont de Nemours and Company disclosed a process for making planar framed membrane electrode assembly array adapted for use in the fuel cells, namely for making single or multiple planar array five layer membrane electrode assemblies utilizing array assemblies, as well as the array assemblies themselves, comprising proton exchange membrane (PEM). catalyst coated membrane (CCM) and gas diffusion layers (GDL). as well as gas diffusion electrodes (GDE) for use in fuel cells.[0002]However, for making the assemblies of so many membranes, including: proton exchange membrane, catalyst coated membranes and gas diffusion layers, it may be a complex process requiring complex procedures, possibly increasing production cost therefor.[0003]Most particularly, typical manufacturing techniques involve the application of a catalyst coating composition onto substrates such as polymer membrane, including spraying, painting, patch coati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M4/92H01M4/86H01M4/88
CPCH01M2004/029H01M4/8807H01M4/926H01M4/8631Y02E60/10Y02E60/50
Inventor CHEN, KUAN-WEIJANG, JASON SHIAN-CHINGCHEN, KUAN-YU
Owner TAICHI METAL MATERIAL TECH LTD