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Fuel cell

A fuel cell and fuel technology, which is applied to fuel cells, circuits, electrical components, etc., can solve the problems of reducing electrical characteristics, fuel difference, and large fuel amount, and achieve the effect of improving electrical characteristics

Inactive Publication Date: 2008-12-31
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in portable electrical equipment that needs to be operated for a long time, a fuel cell including a large liquid storage sheet is provided, and in which the concentration of the fuel will vary greatly from one part to another
Therefore, it is often the case that the amount of fuel supplied to each electromotive unit is too large or too small, thereby significantly degrading the electrical characteristics

Method used

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Experimental program
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Effect test

no. 1 example

[0044] refer to Figures 1 to 3 12A to 12D describe the first embodiment of the present invention.

[0045] figure 1 is a schematic diagram of a fuel cell according to a first embodiment of the present invention.

[0046] Such as figure 1 As shown, the fuel cell A includes a charging layer 10 , a fuel supply layer 20 and an air supply layer 30 . A charge layer is provided to generate electrical energy. The fuel supply layer 20 is disposed on the surface of the electrification layer 10 to supply fuel to the electrification layer 10 . The air supply layer 30 is placed on the other surface of the electrification layer 10 to supply air (oxygen) to the electrification layer 10 . As the above-mentioned fuel, a volatile liquid such as methanol can be used.

[0047] The electrification layer 10 includes an electrolyte membrane 10a, a plurality of fuel tubes 10b, and a plurality of oxidizer tubes 10c. In the electrolyte membrane 10, fuel and air undergo mutual chemical reactio...

no. 2 example

[0075] Second, will refer to Figure 4 A second embodiment of the present invention is explained. In the second embodiment, descriptions of the same structural characteristics and operations as those of the first embodiment are omitted.

[0076] Figure 4 is a vertical sectional view of the fuel cell A according to the second embodiment.

[0077] Such as Figure 4 As shown, the fuel cell A according to the second embodiment includes a fuel regulating membrane 50 made of a porous material instead of the fuel regulating membrane 20c (impermeable membrane) according to the first embodiment. The fuel regulating film 50 is disposed in the liquid storage sheet 20a substantially parallel to the electromotive layer 10, and the porosity of the fuel regulating film 50 gradually increases in a direction away from the supply part 20b.

[0078] Also in the above structure, the farther the fuel supplied to the liquid storage sheet 20a is from the supply portion 20b, the easier it is to ...

no. 3 example

[0080] Second, will refer to Figure 5 A third embodiment of the present invention will be described. For the third embodiment, descriptions of the same structural characteristics and operations as those of the first and second embodiments are omitted.

[0081] Figure 5 is a vertical sectional view of the fuel cell A according to the third embodiment.

[0082] Such as Figure 5 As shown, the fuel cell A according to the third embodiment includes a fuel regulating membrane 60 made of the porous material as in the second embodiment. However, unlike the second embodiment, the porosity of the fuel regulating film 60 is uniform from one end to the other, that is, it does not change, and the thickness of the fuel regulating film 60 gradually increases in the direction away from the supply part 20b. decrease.

[0083] Also in this structure, the farther the fuel supplied to the liquid storage sheet 20a is from the supply portion 20b, the easier it is to be transported toward th...

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PUM

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Abstract

A fuel cell includes electromotive portions, a first sheet, a second sheet, a replenishing portion and a fuel adjusting film. The electromotive portions cause fuel and oxygen to react chemically with each other to produce electrical energy. The first sheet is provided to supply the fuel to the electromotive portions. The second sheet is provided to supply the oxygen to the electromotive portions. The replenishing portion is provided at a predetermined portion of the first sheet to replenish the first sheet with the fuel. The fuel adjusting film is inserted in the first sheet to adjust the amounts of the fuel to be supplied from the first sheet to the electromotive portions.

Description

[0001] related application [0002] This application is based on and claims priority from Japanese Patent Application No. 2004-360206 filed on December 13, 2004, and No. 2005-185092 filed on June 24, 2005. The entire content is hereby incorporated by reference. technical field [0003] The present invention relates to a direct type fuel cell in which fuel and air undergo a mutual chemical reaction to generate electrical energy. Background technique [0004] It is known to provide a fuel cell in which fuel and air are allowed to chemically react with each other to generate electrical energy. Among these fuel cells, direct type fuel cells can be made smaller and are expected to be used as power sources for portable electronic devices such as mobile phones or notebook computers. [0005] Figure 13 is a vertical sectional view of a conventional fuel cell B. FIG. [0006] Such as Figure 13 As shown, a conventional fuel cell B includes an electromotive layer 100 , a fuel supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/00H01M8/1009H01M8/1011
CPCY02E60/50
Inventor 寺田贵洋中川泰忠中田慎二吉田勇一
Owner KK TOSHIBA