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Method for supplying power from a fuel cell taking sulfur oxide pollution into account, and power supply device

A sulfur oxide, fuel cell technology, applied in fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve problems such as degradation

Inactive Publication Date: 2012-07-18
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, none of the proposed solutions makes it possible to limit the degradation of performance during the phase of oxidative gas pollution caused by sulfur oxides

Method used

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  • Method for supplying power from a fuel cell taking sulfur oxide pollution into account, and power supply device
  • Method for supplying power from a fuel cell taking sulfur oxide pollution into account, and power supply device
  • Method for supplying power from a fuel cell taking sulfur oxide pollution into account, and power supply device

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Embodiment Construction

[0021] figure 1 Indicates a power supply device. The plant comprises a proton exchange membrane fuel cell (PEMFC) 1 , means 2 for controlling the operating temperature of the cell and means 3 for detecting sulfur oxides in oxidizing gases. The PEMFC comprises an anode and a cathode respectively 4a and 4b and a separator 5 made of a polymer interposed between the electrodes 4a and 4b. A membrane-electrode assembly (MEA) 6 constitutes the core of the battery. Said electrodes are arranged on the gas diffusion layers 7a and 7b connected to the electric circuit 8 to be powered. Each gas diffusion layer (7a, 7b) comprises gas inlets and outlets for excess gas and reaction products. The entry-exit is at figure 1 are indicated by horizontal arrows on the left for fuel gases and on the right for oxidizing gases, respectively.

[0022] exist figure 1 In the particular embodiment represented in , said device advantageously comprises an electronic control circuit 9 , such as a micro...

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Abstract

The invention relates to a method for supplying power from a fuel cell, involving detecting sulfur oxide in the oxidizing gas of the cell and decreasing the operating temperature of the cell when the amount of sulfur oxide detected is greater than a predetermined threshold. The decrease in the temperature can vary depending on the speed of the degradation in performance.

Description

technical field [0001] The present invention relates to a method of being powered by a fuel cell comprising an oxidising gas. [0002] The invention also relates to a power supply device comprising a fuel cell comprising an oxidizing gas and means for controlling the operating temperature of said cell. Background technique [0003] A fuel cell is an electrochemical system that enables the conversion of chemical energy into electricity. For a proton exchange membrane fuel cell (PEMFC), the chemical energy is in the form of gaseous hydrogen. A fuel cell is divided into two compartments separated by a proton exchange membrane. One of the chambers is supplied with hydrogen gas called fuel gas, and the other chamber is supplied with oxygen or air called oxidizing gas. At the anode, the oxidation reaction of hydrogen produces protons and electrons. The protons pass through the membrane and the electrons must travel through an external circuit to the cathode. On this cathode t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/10
CPCH01M2008/1095H01M8/04679H01M8/04007Y02E60/521H01M8/04701H01M8/04089H01M8/0675H01M8/04559H01M8/04589H01M8/04455H01M8/1002H01M8/1007Y02E60/50
Inventor O.莱梅尔N.巴蒂B.巴特A.弗兰科
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES