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Fuel cell

A slurry and electrode technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of productivity, manufacturing time, etc., and achieve the effect of shortening the working time

Active Publication Date: 2006-10-04
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although a diffusion layer such as Patent Document 1 cited as a background art has excellent battery performance, it takes time to manufacture and has problems in productivity.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 2 As shown, the carbon paper (manufactured by Dongling Corporation: TGPH060H) as the base material of the gas diffusion layer has a weight ratio of carbon paper: FEP (tetrafluoroethylene-hexafluoropropylene copolymer) of 95:5 (for the cathode), 60 : 40 (for anode) was immersed in the FEP dispersion liquid, and then dried at 60° C. for 1 hour, and then heat-treated at 380° C. for about 15 minutes (FEP water-repellent treatment) (S10). In this way, almost uniform water repellency treatment is applied to the carbon paper.

[0031] Carbon block (manufactured by CABOT: Vulcan XC72R), terpineol (manufactured by Kishida Chemical Co., Ltd.) as a solvent, and triton (manufactured by Kishida Chemical Co., Ltd.) of a nonionic surfactant were used as carbon black in a weight ratio. : terpineol: triton = 20:150:3, mixed at room temperature for 60 minutes in a universal mixer (manufactured by DALTON) to make it uniform, and prepared a carbon slurry (S11).

[0032] A...

Embodiment 2

[0036] Such as image 3 As shown, carbon paper (manufactured by Toling Corporation: TGPH060H) as a base material of the gas diffusion layer was subjected to the same FEP water repellent treatment as in Example 1 (S20).

[0037] Same as embodiment 1, carbon black, terpineol, triton are carbon blocks in weight ratio: terpineol: triton = 20: 150: 3, mix 60 minutes at normal temperature in the universal mixer, make Carbon slurry (S21).

[0038] As in Example 1, a cathode gas diffusion layer slurry and an anode gas diffusion layer slurry were prepared.

[0039] Coat each gas diffusion layer slurry that has been cooled to room temperature on the surface of the above-mentioned carbon paper that has been subjected to FEP waterproof treatment, and make the coating state in the carbon paper surface uniform, and dry it at 60°C for 60 minutes with a hot air dryer (S27). After drying the gas diffusion layer on the cathode side with a hot air dryer, the cathode gas diffusion layer slurry...

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Abstract

PROBLEM TO BE SOLVED: To provide a fuel cell capable of shortening the working time for forming a gas diffusion layer. ŽSOLUTION: In a polymer electrolyte fuel cell 10 equipped with an electrolyte layer 12, first electrodes 14, 20, and second electrodes 22, 28, the first electrodes are equipped with a catalyst layer 14 having a catalyst function, a substrate 18 having conductivity, and a water management layer 16 having conductivity and controlling the movement of water between the catalyst layer and the substrate. Ž

Description

technical field [0001] The present invention relates to a fuel cell, in particular, to a fuel cell capable of improving the productivity of a gas diffusion layer of a solid polymer fuel cell. In addition, the present invention relates to a fuel cell capable of maintaining or improving the cell performance of a solid polymer fuel cell and improving the productivity of a gas diffusion layer. Background technique [0002] Although it is now an era when new technologies such as IT and biology are deployed on a global scale, the fact that the energy industry is the largest backbone industry has not changed in this situation. Recently, expectations for so-called new energy sources have been increasing along with the permeation of environmental awareness represented by the prevention of global warming. In addition to being environmentally friendly, new energy can also be generated in a decentralized manner close to the point of demand for electric energy, so it also has advantages...

Claims

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Application Information

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IPC IPC(8): H01M8/00
CPCY02E60/50Y02E60/521
Inventor 高见洋史门胁正天宫井惠吾坂本滋
Owner SANYO ELECTRIC CO LTD
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