Fuel cell management method

A management method and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, circuits, etc., can solve the problems of reducing the durability of fuel cell stacks and accelerating irreversible deterioration

Active Publication Date: 2015-06-24
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the vehicle is operated in a state where the oxide formed during the storage of the fuel cell stack remains on the platinum surface, irreversible deterioration is accelerated, for example, platinum is eluted from the oxide, thereby reducing the performance of the fuel cell stack of the fuel cell vehicle. Durability

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Embodiment Construction

[0025] The present invention may be embodied in many different forms without departing from the spirit and essential characteristics of the invention. Therefore, the disclosure of the embodiments of the present invention is for the purpose of illustration only and should not be construed as limiting the present invention.

[0026] Accordingly, any and all modifications, variations or equivalent arrangements should be considered to be within the scope of the invention, and the specific scope of the invention will be disclosed by the appended claims.

[0027] The terms "first and / or second" and the like are used to distinguish a specific member from other members, but the configuration of these members should not be construed as being limited by the terms.

[0028] It will be understood that when an element is referred to as being "coupled" or "connected" to another element, it can be directly coupled or connected to the other element or intervening elements may be present there...

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Abstract

A fuel cell management method includes removing droplets remaining in a fuel cell stack using air supplied to a cathode and hydrogen supplied to an anode. Hydrogen and oxygen remaining are removed in the fuel cell stack by stopping the supply of the hydrogen and the air, and the hydrogen and the oxygen in the fuel cell stack are chemically reacted to remove residual hydrogen and oxygen. Hydrogen is generated in the cathode of the fuel cell stack after removing the residual hydrogen and oxygen. The residual oxygen is additionally removed using the generated hydrogen, the generated hydrogen is absorbed on a surface of a catalyst layer formed on the anode and cathode and accelerating the chemical reaction of hydrogen and air.

Description

technical field [0001] The present invention relates to a fuel cell management method for preventing performance degradation during long-term storage of a fuel cell stack. Background technique [0002] A fuel cell is a power generation system for directly converting the chemical reaction energy of hydrogen and oxygen contained in hydrocarbon-based substances such as methanol, ethanol, natural gas, etc. into electrical energy. [0003] Fuel cells can be divided into phosphoric acid fuel cells, molten carbonate fuel cells, solid oxide fuel cells, polymer electrolyte membrane fuel cells, etc. according to the type of electrolyte. The basic principles of these fuel cells are the same as each other, but they are different from each other in terms of the type of fuel, operating temperature, catalyst, electrolyte, etc. [0004] Compared with other fuel cells, polymer electrolyte membrane fuel cells (PEMFC: polymer electrolyte membrane fuel cell) have very high output performance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04
CPCH01M8/04037H01M8/04179H01M8/04231H01M8/04746H01M8/04753H01M8/04828H01M8/0488H01M8/0491H01M8/04917H01M8/04947Y02E60/50H01M8/04223H01M8/0606
Inventor 全大槿申焕秀秋炫硕李盛根李在爀
Owner HYUNDAI MOTOR CO LTD
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