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Cathode direct stagged-positive electrode parallel current combined sprue of proton exchange membrane fuel cell

A fuel cell cathode, proton exchange membrane technology, applied in solid electrolyte fuel cells, fuel cells, fuel cell additives, etc., can solve the problems of reducing the concentration of reactant gas, increasing the diffusion resistance of reactant gas, etc., to reduce gas flow resistance, The effect of reducing the flooding of the cathode and facilitating gas delivery

Inactive Publication Date: 2005-01-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the addition of water vapor reduces the concentration of the reaction gas and increases the diffusion resistance of the reaction gas.

Method used

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  • Cathode direct stagged-positive electrode parallel current combined sprue of proton exchange membrane fuel cell
  • Cathode direct stagged-positive electrode parallel current combined sprue of proton exchange membrane fuel cell
  • Cathode direct stagged-positive electrode parallel current combined sprue of proton exchange membrane fuel cell

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Embodiment Construction

[0020] In order to better understand the technical solution of the present invention, further description will be made below in conjunction with the accompanying drawings.

[0021] The cathode straight staggered-anode parallel flow combination channel structure of the proton exchange membrane fuel cell provided by the present invention is as follows: image 3 shown. The so-called combined flow channel is to select different forms of flow channels according to the working characteristics of the fuel cell cathode and anode. In the combined flow channel of the present invention, the cathode of the battery adopts a straight staggered flow channel 10, the anode adopts a parallel flow channel 11, the cathode straight staggered flow channel 10 is above the battery, the anode parallel flow channel 11 is below the battery, and the cathode gas is from top to bottom Diffusion layer 12 , cathode catalyst layer 13 , proton exchange membrane 14 , anode catalyst layer 15 and anode gas diffu...

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Abstract

Straight interleaving fluid channels in upper part of is adopted in cathode. Parallel fluid channels in lower part of battery are adopted in anode. Inlet fluid channel of cathode is parallel fluid channel, and end part is closed. Outlet fluid channel of cathode is horizontal straight fluid channel. Parallel straight fluid channels are between inlet and outlet of working substance of anode. Straight interleaving fluid channels in cathode is in use for discharging liquid water generated by electrochemical reaction easily. Parallel fluid channels in anode are in use for transporting gas conveniently, and reducing gas-streaming resistance inside fluid channels. Differential pressure between cathode and anode causes diffusion of water from cathode to anode so as to humidify proton exchange membrane.

Description

technical field [0001] The invention relates to a proton exchange membrane fuel cell cathode straight staggered-anode parallel flow combination flow channel, which is a new type of proton exchange membrane fuel cell gas flow channel and belongs to the fuel cell in energy utilization [0002] technology field. Background technique [0003] With the increasing shortage of resources and the gradual deterioration of the environment, countries all over the world are researching and developing new power generation technologies. Fuel cells can directly convert chemical energy into electrical energy without being limited by the Carnot cycle, and are highly efficient and environmentally friendly. Proton exchange membrane fuel cells, because of their compact structure, light weight, high current density, low operating temperature, fast start-up speed, and the use of non-toxic solid electrolyte membranes, have broad application prospects in aviation, transportation, mobile power and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M8/0258H01M8/10
CPCY02E60/50
Inventor 李巍袁俊琪于立军姜秀民
Owner SHANGHAI JIAO TONG UNIV