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Fuel cell

A fuel cell and liquid fuel technology, applied in the direction of fuel cells, fuel cell integration, fuel cell additives, etc., can solve problems such as instability, increase battery characteristics, and difficulty in control, and achieve easy setup, reduced defect rate, and short-circuit defects Eliminate the effect

Inactive Publication Date: 2007-10-31
KK TOSHIBA
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Problems solved by technology

Therefore, it is difficult to control the amount of fuel supplied to the anode catalyst layer at a constant rate, thereby also increasing the problem of unstable battery characteristics

Method used

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preparation example Construction

[0065]

[0066] Add a solution of perfluorocarbon sulfonic acid, water, and methoxypropanol to carbon black loaded with a catalyst for the anode (Pt:Ru=1:1), and prepare a method for dispersing the carbon black loaded with the catalyst for the anode slurry in it. The resulting slurry was coated on porous carbon paper as the anode gas diffusion layer 5, whereby an anode including an anode catalyst layer 3 having a thickness of 450 μm was produced.

[0067]

[0068] A perfluorocarbon sulfonic acid solution, water, and methoxypropanol were added to the carbon black carrying the catalyst (Pt) for the cathode to prepare a slurry in which the carbon black carrying the catalyst for the cathode was dispersed. The resulting slurry was coated on porous carbon paper as the cathode gas diffusion layer 4, thereby producing a cathode including a cathode catalyst layer 2 having a thickness of 400 μm.

[0069] Between the anode catalyst layer 3 and the cathode catalyst layer 2, a perfluo...

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Abstract

A fuel cell includes: a film electrode junction body (1) having a proton conductive film (6) between a cathode catalyst layer (2) and an anode catalyst layer (3); a cathode conductive layer (7a) arranged at the side of the cathode catalysis layer of the film electrode junction body (1); an external case (15) having an air introduction opening (14) for supplying air to the cathode catalyst layer (2); an anode conductive layer (7b) arranged at the side of the anode catalyst layer of the film electrode junction body (1); and a liquid fuel tank (9) for containing liquid fuel to be supplied to the anode catalyst layer (3).The cathode conductive layer (7a) and the anode conductive layer (7b) are arranged on an insulating film (16) to form a single body which is twice-folded. The film electrode junction body (1) is contained in a inner space obtained by the twice-folding insulating film.

Description

technical field [0001] The present invention relates to a fuel cell having a system for supplying vaporized fuel obtained by vaporizing liquid fuel to an anode catalyst layer. More particularly, the present invention relates to a fuel cell that is easily assembled and capable of efficiently forming current collectors for cathodes and anodes, each of which is composed of a conductive layer with a highly precise position. Background technique [0002] In recent years, various electronic devices such as personal computers and cellular phones have been miniaturized with the development of semiconductor technology, and attempts have been made to use fuel cells as power sources for these small electronic devices. An advantage of a fuel cell is that it can generate electricity only by supplying fuel and an oxidant, and can continuously generate electricity as long as the fuel is supplied to the cell. Due to the advantages described above, it can be said that the fuel cell is an ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M8/04H01M8/10
CPCH01M8/1009H01M8/0232H01M8/0247H01M8/04186H01M8/04216H01M8/1011H01M8/2475H01M2250/30Y02B90/18Y02E60/523Y02B90/10Y02E60/50H01M8/04H01M8/02H01M8/10
Inventor 根岸信保高桥贤一菅博史
Owner KK TOSHIBA
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