Seal structure for modularized proton exchange film fuel cell

A proton exchange membrane and fuel cell technology, which is applied to fuel cell components, solid electrolyte fuel cells, fuel cells, etc., can solve problems such as uneven aging speed, oxygen leakage, and uneven pressure, and achieve increased performance Safety and safety, production and construction simplification, production cost reduction effect

Active Publication Date: 2005-07-06
ASIA PACIFIC FUEL CELL TECH
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Problems solved by technology

[0010] (1) The hydrogen gas supplied by the channel 101a of the anode plate 101 is easily lost due to the gap between the gaskets 106, 107 and the anode plate 101 when passing through the anode gas diffusion layer 104
And the oxygen supplied by the channel 102a of the cathode plate 102 is also very easy to leak due to the gap between the gaskets 106, 107 and the cathode plate 102, which seriously affects the progress of the reaction.
This deficiency is especially obvious after the gaskets 106, 107 have been used for a period of time to cause aging. Even if the gaskets 106, 107 are integrally formed into a single gasket, this problem cannot be effectively solved
[0011] (2) Due to the limitations of the materials of the gaskets 106 and 107, it is very easy to cause uneven contact pressure of the whole battery cell due to uneven pressure nearby or uneven aging speed. This is because the gas diffusion reaction cannot b

Method used

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  • Seal structure for modularized proton exchange film fuel cell
  • Seal structure for modularized proton exchange film fuel cell
  • Seal structure for modularized proton exchange film fuel cell

Examples

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[0107] see first image 3 , which shows a perspective view of the modular fuel cell unit of the proton exchange membrane fuel cell according to the first embodiment of the present invention, Figure 4 for display image 3 The three-dimensional exploded view of each component in separation. Figure 5A for display image 3 A cross-sectional side view of each component in isolation.

[0108] The modularized fuel cell unit 10 shown in the drawings includes an anode plate 1 (Anode Plate) and a cathode plate 2 (Cathode Plate), wherein the anode plate 1 has a first surface 11, a second surface 12, a central The area 13 and a peripheral area 14, the central area 13 of the first surface 11 is provided with a plurality of anode gas channels 15 for the flow of hydrogen gas. The peripheral region 14 of the anode plate 1 is provided with a hydrogen gas inlet through hole 16a, a hydrogen gas outlet through hole 16b, an air inlet through hole 16c, an air outlet through hole 16d, a coolan...

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Abstract

A sealed structure of modularized proton exchange membrane fuel battery, which contains a round concave part and an extended round part in positive plate of said fuel battery, a round concave part and interconnected extended concave part in negative plate, silica gel pre-coated in circumference area corresponded round concave part and extended round concave part in positive and negative plate, before the gel solidified the positive plate, membrane assembly and negative plate are align laminated and pressed to form enclosed round surface and the proton exchange membrane is tightly pressed and located at the intermediate position to make the through holes between positive plate and negative plate respectively form enclosed round surface.

Description

technical field [0001] The invention relates to a structural design of a proton exchange membrane fuel cell, in particular to a sealing structure of a modular proton exchange membrane fuel cell. Background technique [0002] In the technical field of fuel cells, the types of fuel cells currently developed are roughly divided into alkaline fuel cells, phosphoric acid fuel cells, solid oxide fuel cells, molten carbonate fuel cells, and proton exchange membrane fuel cells. type. Various fuel cells have their own advantages and disadvantages and application ranges, among which the proton exchange membrane fuel cell (PEMFC) has the most commercial value. [0003] The working principle of the fuel cell is mainly to use hydrogen and oxygen to generate water through an electrochemical reaction and release electric energy, which can basically be regarded as an inverse device for water electrolysis. [0004] Since the performance of the fuel cell efficiency depends on the completene...

Claims

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Application Information

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IPC IPC(8): H01M8/02H01M8/24
CPCH01M8/0247H01M8/0267H01M8/0273H01M8/0276H01M8/028H01M8/0297H01M8/241Y02E60/50H01M8/2483
Inventor 杨源生
Owner ASIA PACIFIC FUEL CELL TECH
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