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Reversible fuel battery cathode flow field structure and reversible fuel battery

A fuel cell cathode and fuel cell technology, applied in fuel cells, circuits, electrical components, etc., to achieve the effect of reducing plate space and improving water management efficiency

Active Publication Date: 2018-01-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that there are many flow field designs for fuel cell (FC) functions, but few designs specifically for URFC flow fields

Method used

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  • Reversible fuel battery cathode flow field structure and reversible fuel battery
  • Reversible fuel battery cathode flow field structure and reversible fuel battery
  • Reversible fuel battery cathode flow field structure and reversible fuel battery

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A reversible fuel cell such as figure 1 , figure 2 with Figure 4As shown, including the plate body 1 and the membrane electrode assembly, the two sides of the plate body 1 are respectively provided with a cathode flow field and an anode flow field, wherein the cathode flow field includes a double-layer three-dimensional flow channel and a directional microchannel, and the double-layer three-dimensional flow field The channel is composed of a cathode gas main channel 3 and an electrolytic water main channel 7. The directional microchannel is composed of a power generation directional microchannel 4 and an electrolysis directional microchannel 6. The cathode gas main channel 3 is provided with a cathode gas manifold port 2, and the electrolysis directional microchannel One end of 6 is connected to the electrolyzed water main channel 7, and the other end leads to the outside of the plate body 1. The electrolyzed water main channel 7 is provided with an electrolyzed wate...

Embodiment 2

[0041] This embodiment is basically the same as Embodiment 1, except that one side of the plate body 1 of the reversible fuel cell in this embodiment is provided with a cathode flow field, and the other side is connected with an anode unipolar plate with an anode flow field, so that A bipolar plate is formed, and a coolant flow field can be provided between the two unipolar plates.

[0042] The invention realizes the separation of water and gas under two working modes of power generation and electrolysis, improves battery water management and mass transfer efficiency, and ensures high-performance output of the reversible fuel cell.

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Abstract

The invention relates to a reversible fuel battery cathode flow field structure and a reversible fuel battery. The reversible fuel battery cathode flow field structure comprises double-layer three-dimensional runners and orientated micro channels, wherein the double-layer three-dimensional runners consist of cathode gas main runners and electrolytic water main runners; the orientated micro channels consist of power generation orientated micro channels and electrolysis orientated micro channels; when power is generated from the reversible fuel battery, a fed cathode gas is allocated by the cathode gas main runners; generated water is gathered through the power generation orientated micro channels, is fed into the electrolytic water main runners and is discharged out; in electrolysis of thereversible fuel battery, reaction water is fed from the electrolytic water main runners and is allocated through the power generation orientated micro channels; a generated cathode gas is gathered bythe cathode gas main runners. The reversible fuel battery provided by the invention is of a cathode flow field structure. Compared with the prior art, the structure is capable of separating water fromgases in two working modes of power generation and electrolysis, the battery water management and mass transfer efficiency are improved, and the high-performance output of the reversible fuel batteryis ensured.

Description

technical field [0001] The invention belongs to the field of fuel cell technology, and relates to a flow field structure in the field of fuel cell technology, in particular to an integrated bidirectional reversible renewable fuel cell cathode flow field structure with combined electrolysis and power generation functions and a cathode flow field structure with the cathode flow field Structured reversible fuel cells. Background technique [0002] Energy is the basis for the survival and development of modern society. With the continuous progress of human society, fossil fuels such as coal, oil and natural gas on which human beings depend are gradually being exhausted. At the same time, the consumption of fossil fuels has brought about increasingly serious air pollution and accelerated global warming. Therefore, the development of new energy sources, the improvement of fuel utilization, and the exploration of clean energy technologies to replace petroleum and other fossil fuel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0263
CPCY02E60/50
Inventor 邱殿凯彭林法邵恒易培云来新民
Owner SHANGHAI JIAO TONG UNIV