Liquid cathode fuel battery

A fuel cell and cathode technology, applied in fuel cells, battery electrodes, circuits, etc., can solve the problems of low energy density and achieve the effects of increasing volume energy density, good heat dissipation function, and improving kinetics

Inactive Publication Date: 2007-02-28
崔骥 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a fuel cell based on a liquid oxidant, which not only overcomes the problem of carrying and storing oxygen gas in the hydrogen-oxygen fuel cell, but also overcomes the shortcomings of the low energy density of the vanadium redox cell and the methanol-air fuel cell

Method used

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Examples

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Embodiment 1

[0052] Battery adopts the structure of Fig. 1, cathode fuel 8 is 20% ammonium perchlorate and 5% sulfuric acid mixed solution (weight ratio, hereinafter the same), and anode fuel 9 is by 10% sodium borohydride, 10% hydroxide Sodium mixture. Diaphragm 1 is made of Nafion 112, cathode plate 6 and anode plate 7 are made of highly conductive graphite material, and the apparent area of ​​the electrode plate is 25cm 2 . The cathode catalyst layer 2 is composed of a conductive carbon cloth loaded with a noble metal catalyst, and the anode catalyst layer 3 is also composed of a catalyst-loaded conductive carbon cloth. Only one side of the carbon cloth is coated with catalyst (that is, the catalytic layer, which is in direct contact with Nafion), and the other side is a diffusion layer (cathode diffusion layer 4, anode diffusion layer 5). The use of gasket 10 prevents fuel from leaking. The cathode and the anode are respectively led out by wires and connected to the variable resistan...

Embodiment 2

[0055] The catholyte consists of 10% magnesium perchlorate and 10% sulfuric acid without auxiliary agents. There is no catalyst on the graphite rod. The resulting open circuit voltage and short circuit current are 0.56V and 35mA / cm 2 .

Embodiment 3

[0057] The catholyte is composed of 10% magnesium perchlorate and 10% sulfuric acid, and contains 3% sodium molybdate as an auxiliary agent. There is no catalyst on the graphite rod. The resulting open circuit voltage and short circuit current were 0.58V and 43mA / cm 2 .

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Abstract

The invention relates to a liquid cathode fuel battery to solve the problems of present technique that low energy density and transportation. Wherein, the invention is characterized in that: the fuel battery comprises halide oxy acid at 1-100 mass% or the acid liquid with halide oxy acid as cathode fuel, to directly or indirectly discharge at cathode. The fuel battery has high volume energy density and better discharge property.

Description

technical field [0001] The invention relates to a chemical energy-electric energy conversion device and a fuel cell based on liquid oxidant and liquid reductant. Background technique [0002] At present, after half a century of development, hydrogen-oxygen fuel cells based on proton exchange membrane electrolytes have gradually begun to be used in various industrial, civil, and military fields. This type of battery uses the catalytic reduction of hydrogen and oxygen on the electrode to generate electricity, which is the most familiar fuel cell technology. In recent years, the application of non-polluting fuel cell buses and oxygen-independent propulsion systems of submarines reflects the maturity of this technology. However, its limitations in the following aspects limit its wide application. [0003] First, carrying hydrogen-oxygen fuel in gas form requires high-pressure gas cylinders or liquefaction devices, which increases the weight and danger of the system. [0004] ...

Claims

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Application Information

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IPC IPC(8): H01M8/00H01M8/22H01M4/86H01M4/90
CPCY02E60/12H01M4/86Y02E60/50H01M4/48Y02E60/10
Inventor 崔骥罗臬
Owner 崔骥
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