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

Reactant flow channel configuration for easy water removal

A reactant and channel technology, applied to fuel cell components, fuel cells, collectors/separators, etc., can solve problems such as carbon corrosion, affecting fuel cell efficiency, and poor performance

Active Publication Date: 2018-12-07
AUDI AG
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So-called flooding conditions can affect fuel cell efficiency, leading to poor performance
Additionally, carbon corrosion can occur when water buildup in the reactant fuel flow channels starves fuel at various locations

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
  • Reactant flow channel configuration for easy water removal
  • Reactant flow channel configuration for easy water removal
  • Reactant flow channel configuration for easy water removal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] figure 1 An exemplary fuel cell component is shown. The reactant distribution plate 20 includes a plurality of channels 22 and ribs 24 . Channel 22 is configured to facilitate gaseous reactant flow. It is known how to include reactant distribution plates in fuel cell assemblies. Exemplary channels 22 are configured to facilitate flow of gaseous reactants so that the gaseous reactants may be used in electrochemical reactions for generating electricity in the fuel cell.

[0011] Each of the channels 22 has a length L corresponding to the direction of gas flow through the channel. Each channel 22 includes a width dimension W that is generally perpendicular to a length L. As shown in FIG. Each channel in this example has at least two different width dimensions. Two width dimensions W 1 and W 2 exist figure 1 shown in . Each channel also has a depth dimension, which is generally perpendicular to the length and width. The illustrated example includes at least two di...

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

An exemplary fuel cell component includes a reactant distribution plate including a plurality of channels configured to facilitate flow of a gaseous reactant so that the gaseous reactant can be used in a fuel cell In an electrochemical reaction that produces electricity. Each of the channels has a length corresponding to the direction of reactant gas flow along the channel. The width of each channel is approximately perpendicular to the length. The depth of each channel is generally perpendicular to the width and the length. At least one of the width or the depth has at least two different dimensions at a single longitudinal location of the channel.

Description

Background technique [0001] A fuel cell is used as a power source. Fuel cells use known electrochemical reactions for generating electrical energy. Reactants such as hydrogen and oxygen are used in the electrochemical reaction. [0002] One challenge associated with fuel cell operation is managing the water present within the fuel cell. So-called flooding conditions can affect fuel cell efficiency, leading to poor performance. Additionally, carbon corrosion may occur when water buildup in the reactant fuel flow channels starves fuel at various locations. Contents of the invention [0003] An exemplary fuel cell component includes a reactant distribution plate including a plurality of channels configured to facilitate flow of a gaseous reactant so that the gaseous reactant can be used in a fuel cell In an electrochemical reaction that produces electricity. Each of the channels has a length corresponding to the direction of reactant gas flow along the channel. The width ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04119H01M8/026H01M8/0228
CPCH01M8/026H01M8/0228H01M8/04156Y02E60/50
Inventor R·M·达林
Owner AUDI AG