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Method for adjusting water content of fuel cell and method for determining humidification parameter map

A fuel cell, water content technology, applied in fuel cells, fuel cell control, fuel cell additives, etc., can solve problems such as inaccurate control

Active Publication Date: 2020-02-14
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a method for adjusting the water content of the fuel cell and a method for determining the humidification parameter map in view of the blindness and inaccurate control of the traditional humidification technology.

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  • Method for adjusting water content of fuel cell and method for determining humidification parameter map
  • Method for adjusting water content of fuel cell and method for determining humidification parameter map
  • Method for adjusting water content of fuel cell and method for determining humidification parameter map

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Embodiment Construction

[0091] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0092] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to"...

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Abstract

Provided are a method for adjusting the water content of a fuel cell and a method for determining a humidification parameter map. The method for adjusting the water content of a fuel cell comprises: firstly establishing a monolithic cell output voltage model; secondly, under a determined working condition, according to the monolithic cell output voltage model, determining an anode excess humidification boundary line and a cathode excess humidification boundary line; and finally, determining a fuel cell humidification parameter map jointly according to the anode excess humidification boundary line and the cathode excess humidification boundary line. The fuel cell humidification parameter map obtained by means of the method can help an operator prevent poor humidification, and also indicates the optimization direction of the current humidification parameter to the operator.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a method for adjusting the water content of a fuel cell and a method for determining a humidification parameter map. Background technique [0002] The essence of water management in proton exchange membrane fuel cells requires, on the one hand, to provide a sufficient humidity environment to ensure the smooth and efficient proton conduction process in the membrane, and on the other hand, to curb the reduction of the effective area of ​​the chemical reaction caused by excessive accumulation of liquid water. On the one hand, the research on the water management of fuel cells is to maximize the working efficiency of fuel cells (the single-chip output voltage of fuel cells) in the short term; life. [0003] In practical engineering or experimental applications, too much or too little water inside the fuel cell will have an adverse effect on the performance of the fuel ce...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04992H01M8/04291H01M8/04298H01M8/04828
CPCH01M8/04291H01M8/04305H01M8/04828H01M8/0485H01M8/04992Y02E60/50
Inventor 徐梁飞张健珲李建秋胡骏明欧阳明高胡尊严
Owner TSINGHUA UNIV
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