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Direct carbon fuel cell device with liquid metal tin serving as anode

A liquid metal and fuel cell technology, applied in solid electrolyte fuel cells, battery electrodes, circuits, etc., can solve the problems of limiting anode mass transfer efficiency and limited contact area, and achieve the effect of improving anode mass transfer performance

Active Publication Date: 2012-10-10
江苏华昌铝厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since the carbon fuel and the current collector are both solid, the contact area between them is limited, which limits the efficiency of anode mass transfer.

Method used

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  • Direct carbon fuel cell device with liquid metal tin serving as anode
  • Direct carbon fuel cell device with liquid metal tin serving as anode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Using carbon black as carbon fuel, mix it with tin powder at a mass ratio of 20:3 and add it into the fuel chamber of a straight carbon fuel cell with liquid metal tin as the anode, and seal the battery device. At normal temperature, nitrogen gas is passed into the anode to remove the air in the anode cavity. Turn on the heater, and when the temperature rises to 500°C, air is introduced into the cathode cavity with an air pressure of 0.5Mpa, and the working conditions of the battery are recorded. The discharge performance of the battery at 750°C is listed here, see attached table 1.

Embodiment 2

[0030] Example 2: Using carbon black as carbon fuel, mix it with tin powder at a mass ratio of 6:1 and add it into the fuel chamber of a direct carbon fuel cell with liquid metal tin as the anode, and seal the battery device. At normal temperature, nitrogen gas is passed into the anode to remove the air in the anode cavity. Turn on the heater, and when the temperature rises to 500°C, air is introduced into the cathode cavity with an air pressure of 0.5Mpa, and the working conditions of the battery are recorded. The discharge performance of the battery at 750°C is listed here, see attached table 1.

Embodiment 3

[0031] Example 3: Using carbon black as carbon fuel, mix it with tin powder at a mass ratio of 11:1 and add it into the fuel chamber of a straight carbon fuel cell with liquid metal tin as the anode, and seal the battery device. At normal temperature, nitrogen gas is passed into the anode to remove the air in the anode cavity. Turn on the heater, and when the temperature rises to 500°C, air is introduced into the cathode cavity with an air pressure of 0.5Mpa, and the working conditions of the battery are recorded. Now list the discharge performance of the battery at 800°C, see attached table 1.

[0032]

[0033] Table 1 is as follows:

[0034] Example Tin: carbon (mass ratio) temperature Maximum current density Maximum Power Density average power density 1 20:3 750 5.37mA / cm 2 4.75mW / cm 2 4.53mW / cm 2 2 6:1 750 9.61mA / cm 2 9.11mW / cm 2 8.64mW / cm 2 3 11:1 800 10.02mA / cm 2 9.90mW / cm 2 8.45mW / cm 2

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Abstract

The invention relates to a direct carbon fuel cell device with liquid metal tin serving as an anode. A cover is arranged at the top of a cylindrical container externally wrapped by a heating ring, a cell monomer is arranged on a heat conducting gasket which is arranged at the inner bottom of the cylindrical container, a channel for cathode gas to flow through is reserved to enable the cathode gas to contact with a cathode through pore passages on ceramic, and the cylindrical container is partitioned into a cathode area and an anode area by a sealing washer. The cathode area is arranged on the lower portion of the cylindrical container, the cathode gas is led in by a gas pump via a cathode gas inlet guide tube, and cathode tail gas is led out through a cathode gas outlet guide tube. The anode area is arranged on the upper portion of the cylindrical container, and anode carrier gas is led in through an anode gas inlet tube and led out through an anode gas outlet tube. The direct carbon fuel cell device has the advantages that anode mass transfer performance is improved by using the liquid metal tin as the anode instead of an existing anode structure consisting of carbon-containing fuel mixture and a current collector; and further, study and development on high-power direct carbon fuel cell stacks can be conducted on basis of the novel structure.

Description

technical field [0001] The invention relates to the field of straight carbon fuel cells, in particular to a straight carbon fuel cell device using liquid metal tin as an anode. Background technique [0002] In recent years, due to the continuous increase in the price of fossil energy raw materials represented by petroleum, governments of various countries have deeply realized that the high dependence on fossil energy is an unsustainable strategy. These resources will not only be exploited, but also used as fuel produced CO 2 It is further exacerbating the greenhouse effect of the global climate. To this end, many countries invest a lot of research funding to study new types of renewable energy sources or to develop methods for more efficient use of existing energy resources. As far as China's basic national conditions are concerned, my country's coal reserves rank third in the world, and as a primary energy source, it is mainly used for thermal power generation. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/10H01M4/86
CPCY02E60/521Y02E60/50
Inventor 弭永利郝文斌何晓瑾
Owner 江苏华昌铝厂有限公司
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