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Fuel cell and electrode used therein and electronic device

A fuel cell and fuel electrode technology, which is applied to fuel cell components, fuel cells, fuel cell additives, etc., can solve the problems of large current, insufficient extraction, and low voltage of a single fuel cell, so as to promote connection and shorten distance , the effect of shortened distance

Inactive Publication Date: 2011-09-21
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a common disadvantage in fuel cells using both liquid and solid electrolytes is that the voltage of a single fuel cell is extremely low and clearly not sufficient for drawing large amounts of current

Method used

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  • Fuel cell and electrode used therein and electronic device
  • Fuel cell and electrode used therein and electronic device
  • Fuel cell and electrode used therein and electronic device

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Experimental program
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Embodiment

[0084] In the aforementioned production method, an alloy containing platinum (Pt) and ruthenium (Ru) at a given ratio as a catalyst was mixed with polyperfluoroalkylsulfonic acid resin (Nafion (registered trademark), manufactured by DuPont) at a given ratio. The dispersion solutions are mixed, thereby forming the catalyst layer 13 of the fuel electrode 10 . The catalyst layer 13 was thermocompression-bonded to the diffusion layer 12 (HT-2500; manufactured by E-TEK) composed of the aforementioned material under conditions of a temperature of 150° C. and a pressure of 249 kPa for 10 minutes. In addition, the current collector 11 composed of the aforementioned materials is bonded by thermocompression with a hot-melt adhesive or an adhesive resin sheet, whereby the fuel electrode 10 is formed. The current collector 11 used herein has, for example, figure 2 The shape shown in , and has two current collector terminals, each disposed in opposite corners.

[0085] Further, platinum...

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PUM

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Abstract

Disclosed are a fuel cell that makes it possible to reduce the overall thickness of the fuel cell while lowering the electrical resistance thereof, and an electronic device employing the same. A conduit is provided for circulating electrolyte between the fuel electrode and the oxygen electrode. A collector (11) on the side of the fuel electrode is provided with a pair of collection terminals (11A) and (11B) in diagonally opposite positions. Likewise, a collector (21) on the oxygen electrode side is provided with a pair of collector terminals (21A) and (21B) in diagonally opposite positions. These collector terminals (11A), (11B), (21A) and (21B) project outside the fuel cell. In this way, coupling of unit cells within the cell is facilitated, a mono-polar plate construction can easily be adopted for the collectors, and the distance that the current has to flow is reduced.

Description

technical field [0001] The present invention relates to a fuel cell such as a DMFC (Direct Methanol Fuel Cell) that supplies methanol to a fuel electrode and initiates a reaction, an electrode for the fuel cell, and an electronic device including the fuel cell. Background technique [0002] In recent years, as the performance of mobile devices has become higher, energy consumption has also increased. Fuel cells are considered to be the batteries most likely to replace lithium-ion secondary batteries. Fuel cells are classified into AFC (Alkaline Fuel Cell), PAFC (Phosphoric Acid Fuel Cell), MCFC (Molten Carbonate Fuel Cell), SOFC (Solid Electrolyte Fuel Cell), PEFC (Polymer Electrolyte Fuel Cell), etc. according to the electrolyte. [0003] As the fuel of the fuel cell, various combustible substances such as hydrogen and methanol can be used. However, gaseous fuels such as hydrogen are not suitable for miniaturization because tanks and the like are required for storage. Me...

Claims

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Application Information

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IPC IPC(8): H01M8/02H01M8/00H01M8/08
CPCH01M8/0213H01M8/0206H01M8/04276H01M8/0247Y02E60/50H01M8/241H01M8/2459
Inventor 槙田健吾
Owner SONY CORP