Bipolar plate of proton exchange membrane fuel cell

A proton exchange membrane and fuel cell technology, applied in fuel cells, fuel cell parts, circuits, etc., can solve problems such as differences in actual performance, overheating of membrane electrodes, and blocked gas flow channels

Pending Publication Date: 2019-09-06
SHANGHAI HYDROGEN PROPULSION TECH CO LTD
View PDF0 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the gas distribution is inconsistent, the actual performance of each point of the membrane electrode will be quite different, and the heat generation of each point of the membrane electrode will be inconsistent. In severe cases, it will cause local overheating in the membrane e

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
  • Bipolar plate of proton exchange membrane fuel cell
  • Bipolar plate of proton exchange membrane fuel cell
  • Bipolar plate of proton exchange membrane fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] refer to figure 1 , figure 1 A schematic structural diagram of a proton exchange membrane fuel cell bipolar plate provided by an embodiment of the present invention.

[0060] The proton exch...

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

The invention provides a bipolar plate of a proton exchange membrane fuel cell. The bipolar plate of the proton exchange membrane fuel cell is formed by combining a positive pole single plate and a negative pole single plate; a positive pole flow field is arranged on the outer side of the positive pole single plate; a negative pole flow field is arranged on the outer side of the negative pole single plate; and a coolant flow field is formed by a cavity between the positive pole single plate and the negative pole single plate. A positive pole inlet and a positive pole outlet are formed in the left and right sides of the bipolar plate of the proton exchange membrane fuel cell, and a negative pole inlet and a negative pole outlet are formed in the left and right sides of the bipolar plate ofthe proton exchange membrane fuel cell; a coolant inlet and a coolant outlet are formed in the upper and lower sides of the bipolar plate of the proton exchange membrane fuel cell; and the positive pole inlet and the negative pole inlet are formed in the left and right sides of the polar plate of the proton exchange membrane fuel cell. Vertical cross flow of a coolant and negative pole gas and positive pole gas is realized, and then the electrochemical reaction activity of the bipolar plate of the proton exchange membrane fuel cell is improved, and preferable heat management is realized.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a bipolar plate of a proton exchange membrane fuel cell. Background technique [0002] A fuel cell is a chemical battery that directly converts the chemical energy of fuel into electrical energy, also known as an electrochemical generator; it is the fourth power generation technology following hydropower, thermal power and atomic power. Since the fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electrical energy through an electrochemical reaction, it is not limited by the Carnot cycle effect and has high economic efficiency. [0003] Due to the limitations of various technologies and considering the energy consumption of the entire device system, the total conversion efficiency of various fuel cells currently in operation is mostly in the range of 45%-60%, and can reach more than 80% if considering the utilization of exhaust heat. In addition,...

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): H01M8/0258H01M8/0202
CPCH01M8/0202H01M8/0258Y02E60/50
Inventor 董梁方亮石伟玉杨曦
Owner SHANGHAI HYDROGEN PROPULSION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap