Plate electrode, single cell, cell stack, and fuel cell power system with cell stack

A power system and fuel cell technology, applied in fuel cells, power system fuel cells, circuits, etc., can solve the problems of low humidification efficiency, achieve the effects of reducing heat dissipation load, improving humidification efficiency, and efficient utilization

Active Publication Date: 2017-08-29
DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The main purpose of the present invention is to provide an electrode plate, a single cell, a battery stack and a fuel cell

Method used

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  • Plate electrode, single cell, cell stack, and fuel cell power system with cell stack
  • Plate electrode, single cell, cell stack, and fuel cell power system with cell stack
  • Plate electrode, single cell, cell stack, and fuel cell power system with cell stack

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Embodiment Construction

[0043] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with examples.

[0044] As mentioned in the background technology, in the fuel cell power system in the prior art, there is a defect of low humidification efficiency due to the COG membrane humidification process. In order to improve this defect, in a typical implementation of the application, a An electrode plate is disclosed, which comprises an electrode plate body and a liquid dialysis hole 13 arranged on the electrode plate body.

[0045] By using the principle of liquid dialysis, the key component of the battery stack, the bipolar plate (anode plate and cathode plate), is designed and improved into an electrode plate with liquid dialysis holes, so that the battery stack formed by the electrode plate can be generated by the fuel cell ...

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Abstract

The invention provides a plate electrode, a single cell, a cell stack, and a fuel cell power system with the cell stack. The plate electrode comprises an plate electrode body and liquid dialysis holes. According to the invention, the key assembly, i.e., a bipolar plate, of the cell stack is designed and improved to be the plate electrode with the liquid dialysis holes on the basis of the principles of liquid dialysis, so the cell stack formed by the plate electrodes can utilize vaporous water produced by a fuel cell system to complete humidification of the cell stack via dialysis channels in the plate electrodes, and power in the process of cooling water circulation and heat produced by the cell stack are utilized in the process of humidification to reduce heat radiation load of cooling water; and since water produced by the reaction of the cell stack can be cyclically utilized, the fuel cell power system formed by the plate electrode with the liquid dialysis holes can highly efficiently use water heat of the fuel cell system and can realize internal humidification during electrochemical reaction, so humidification efficiency is substantially improved.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to an electrode plate, a single cell, a cell stack and a fuel cell power system with the same. Background technique [0002] A fuel cell vehicle (FCV) is a vehicle powered by electric energy generated by an on-board fuel cell device. Currently, proton exchange membrane fuel cells (PEMFC) are widely used in fuel cell vehicles. The working principle of the proton exchange membrane fuel cell vehicle is: the fuel hydrogen is distributed along the flow channel of the anode plate of the fuel cell stack on the anode side of the membrane electrode, and is dissociated into electrons and protons under the action of the anode catalyst, and the electrons reach the cathode through the external circuit. Protons pass directly through the membrane electrode to the cathode, where they react with oxygen in the cathode reactant gas to form water. The products of this process are electricity, heat and water...

Claims

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Application Information

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IPC IPC(8): H01M8/04119H01M8/0258
CPCH01M8/0258H01M8/04149H01M2008/1095H01M2250/20Y02E60/50
Inventor 宋亚婷汤浩殷聪罗再祥
Owner DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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