Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Bipolar plates for fuel cells and fuel cells

A fuel cell, bipolar plate technology, applied in fuel cells, circuits, electrical components, etc., can solve the problems affecting the stability and life of fuel cells, uneven temperature distribution of bipolar plates, etc.

Active Publication Date: 2020-04-10
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to uneven temperature distribution of the bipolar plates, which affects the stability and life of the fuel 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
  • Bipolar plates for fuel cells and fuel cells
  • Bipolar plates for fuel cells and fuel cells
  • Bipolar plates for fuel cells and fuel cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0026] figure 1 It is a structural schematic diagram of a bipolar plate of a fuel cell in the related art. Such as figure 1 As shown, the bipolar plate includes a first pole plate 11 and a second pole plate 12 overlapping each other. figure 1 Part of the structure of the first pole plate 11 is removed to expose the second pole plate 12 . The first pole plate 11 may be one of the cathode plate and the anode plate, and the second pole plate 12 is the other of the cathode plate and the anode plate. The middle part of the first pole plate 11 and the second pole plate 12 is the flow channel area A, and the flow channel area A is distributed with a plurality of cooling channels 101, figure 1 Two cooling channels 101 are exemplarily s...

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 fuel cell and the fuel cell and relates to the field of the fuel cell. The bipolar plate comprises a first polar plate and a second polar plate, wherein oneof the first polar plate and the second polar plate is a cathode plate, the other of the first polar plate and the second polar plate is an anode plate, a plurality of cooling runners with differentlengths are formed between the first polar plate and the second polar plate, and cross sectional areas of the cooling runners are positively correlated with the lengths of the cooling runners. The bipolar plate is advantaged in that the cross section area of the longer cooling flow channel is larger, and the cross section area of the shorter cooling flow channel is smaller; although the cooling flow channel with longer length has larger resistance and slow flow rate, however, the cross sectional area is large, although the cooling flow channel with shorter length is smaller in resistance, theflow velocity is high, but the cross sectional area is small, so the flow difference of cooling liquid in the cooling flow channels with different lengths can be reduced, the cooling effects of different areas on the bipolar plate are closer, the temperature distribution on the bipolar plate is more uniform, the fuel cell can work more stably, and the service life of the fuel cell is prolonged.

Description

technical field [0001] The present disclosure relates to the field of fuel cells, in particular to a fuel cell bipolar plate and a fuel cell. Background technique [0002] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy. It is the fourth power generation technology after hydropower, thermal power and atomic power. [0003] The bipolar plate is an important structure in a fuel cell. A fuel cell usually includes stacked sets of bipolar plates. Each set of bipolar plates includes a cathode plate and an anode plate. The cathode plate and the anode plate overlap each other to form a cooling flow. A membrane electrode is sandwiched between two adjacent sets of bipolar plates. [0004] There are usually many cooling channels, and multiple cooling channels are distributed in a larger area. When the fuel cell is working, cooling water flows in from one end of the cooling channel and flows out from the other end, so that the...

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): H01M8/0265H01M8/0267
CPCH01M8/0265H01M8/0267Y02E60/50
Inventor 陈亮郝义国刘超
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com