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Fuel cell

A fuel cell and electrode technology, used in fuel cells, fuel cell components, solid electrolyte fuel cells, etc., can solve the problem of insufficient CO resistance and become clear, and achieve improved voltage characteristics and improved CO resistance. Effect

Inactive Publication Date: 2009-05-27
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, although it is in the research stage, the technology of mixing gold nanoparticles in the catalyst of Pt and Ru, or Pt and molybdenum (Mo) to improve the CO resistance has also been announced. However, in the face of the full-scale popularization of fuel cells, It is not clear that the so-called CO resistance is sufficient

Method used

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Embodiment approach 1

[0073] In this embodiment, using figure 2 The fuel cell 110 used in the domestic fuel cell combined heat and power system 100 will be described. Household fuel cell combined heat and power system 100 is a system with both power generation function and hot water supply function, which includes: reforming raw fuel (hydrocarbon fuel) such as LPG and city gas, and generating hydrogen (fuel) A reformer that uses about 80% of the reformed gas; a fuel cell 110 that generates electricity using the reformed gas supplied from the reformer and oxygen (oxidant) in the air; heat generated from the reformer and the fuel cell 110, etc. , A hot water storage device that recovers heat in the form of hot water (water above 40°C) and stores hot water.

[0074] Raw fuels such as LPG and city gas installed in households are generally odorized with sulfides as a safety measure against gas leakage. , the sulfide in the raw fuel is removed by the desulfurizer 152 at the beginning. The raw fuel de...

Embodiment approach 2

[0097] In this embodiment, using Figure 6 The fuel cell 210 used in the portable fuel cell system 200 will be described. The fuel cell 210 is a direct methanol supply type fuel cell (Direct Methanol Fuel Cell: DMFC) that supplies methanol aqueous solution or pure methanol (hereinafter referred to as "methanol fuel") to the anode 222 (222a, 222b, 222c). In the power generation part, no diffusion layer is used, and the solid polymer membrane 212 is a catalyst coated membrane (Catalyst Coated Membrane: CCM) 230 sandwiched between the cathode 214 ( 214 a , 214 b , 214 c ) and the anode 222 .

[0098] The methanol fuel supplied to the anode 222 is supplied to the fuel chamber 254 from the outside of the fuel cell 210 through a methanol fuel supply hole not shown, and the methanol fuel stored in the fuel chamber 254 is supplied to each anode 222 . At the anode 222, the reaction of methanol as shown in formula (3) takes place, H + It moves to the cathode 214 through the solid poly...

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Abstract

A fuel cell is provided which can enhance the CO resistance to thereby improve the voltage characteristics thereof. A fuel cell includes an electrolyte layer, a first electrode provided on one surface of the electrolyte layer, and a second electrode provided on the other surface of the electrolyte layer. In this fuel cell, a reaction fluid to be supplied to the first electrode contains carbon monoxide or carbon monoxide is generated from a reaction fluid having been supplied to the first electrode. The first electrode of the fuel cell includes a first catalyst material (Pt) having a function of extracting an electron from the reaction fluid, a second catalyst material (WAu) having a function of reducing the activation energy for conversion of carbon monoxide to carbon dioxide, and an oxygen-supplying material (Ru) supplying oxygen.

Description

technical field [0001] The present invention relates to a fuel cell, and more specifically, to a fuel cell with high CO resistance. Background technique [0002] New technologies such as IT and biology will enter the era of global expansion, but even in this situation, the energy industry is still the primary basic industry. Recently, expectations for so-called new energy are rising along with the infiltration of environmental awareness including prevention of global warming. In addition to being environmentally friendly, new energy also has advantages in terms of power transmission loss and safety of power supply because it can be produced in a decentralized manner close to power users. In addition, the development of new energy can also expect the side effect of creating a new marginal industry. New energy activities started with the oil crisis about 30 years ago, and now, renewable energy such as solar power generation, renewable energy such as waste-to-energy, high-eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/00H01M8/02H01M4/86H01M8/10
CPCY02E60/521Y02E60/50
Inventor 松冈孝司生驹吉弘
Owner SANYO ELECTRIC CO LTD
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