Fuel cell, and a method for preparing the same

A fuel cell and dry cell technology, applied in the direction of fuel cells, fuel cell groups, fuel cell components, etc., can solve the problems of non-formation, leakage of fuel and oxidant, etc.

Inactive Publication Date: 2005-12-28
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sealing method of the above-mentioned patent document still has the problem that fuel and oxidant leak between the membrane electrode assembly and the separator in the fuel cell stack because they cannot be formed when the separator and the membrane electrode assembly are compressed. a uniform plane

Method used

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  • Fuel cell, and a method for preparing the same
  • Fuel cell, and a method for preparing the same
  • Fuel cell, and a method for preparing the same

Examples

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example 1

[0043] The membrane was prepared by forming a cathode layer and an anode layer each including a platinum catalyst on two sheets of carbon cloth, and placing the cathode layer and the anode layer in contact with both sides of a perfluorosulfonic acid membrane (Nafion® produced by DuPont) Electrode Assembly (MEA).

[0044] Subsequently, a 2-cyanoacrylate adhesive was applied to one side of each of the two prepared separators bonded to both sides of the electrolyte membrane on the outer edge of the above prepared MEA. The other side of the separator was coated with 2-cyanoacrylate adhesive, and a separator on which a liquid flow channel was formed was placed on both sides of the MEA with the separator, thereby manufacturing a dry battery. Then, a fuel cell is prepared by stacking the dry cells one on top of the other.

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PUM

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Abstract

The invention discloses a fuel cell and a preparation method thereof. The fuel cell includes dry cells each having a membrane electrode assembly, a separator disposed on either side of the membrane electrode assembly, a separator between the membrane electrode assembly and the separator and on the edges of both, wherein an adhesive Adhesives are used to bond each separator to the separator, or to the membrane electrode assembly and the separator. The use of a separator with adhesive in a fuel cell according to the present invention provides an excellent airtight seal of the fuel and oxidant gases of the fuel cell.

Description

technical field [0001] The present invention relates to a fuel cell and a preparation method thereof; more particularly, to a fuel cell sealed to prevent leakage of fuel or oxidant and a method for preparing the fuel cell. Background technique [0002] A fuel cell is an electrical energy generating system that converts energy from a chemical reaction between an oxidant (eg, oxygen) and a fuel (eg, hydrogen or hydrogen contained in a hydrocarbon-based material such as methanol, ethanol, or natural gas) directly into electricity. [0003] Fuel cells have a wide range of applications, including as energy sources such as for power distribution in residential and public buildings, as small energy sources such as for electronic equipment, and as energy sources for vehicles such as vehicles. [0004] Fuel cells are prepared by forming dry cells that include one or more membrane electrode assemblies (MEAs) and separators for supplying fuel and oxidant to the membrane electrode asse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04H01M4/86H01M4/92H01M8/00H01M8/02H01M8/10H01M8/24
CPCB82Y30/00C08L79/04H01M4/926H01M8/0273H01M8/0284H01M8/1004H01M8/242H01M2300/0082H01M2300/0094H01M8/0289Y02P70/50Y02E60/50H01M8/02H01M8/24
Inventor 卢亨坤
Owner SAMSUNG SDI CO LTD
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