Compact flat-plate solid oxide direct carbon fuel cell stack

A solid oxide, fuel cell stack technology, used in solid electrolyte fuel cells, fuel cells, fuel cell additives, etc.

Active Publication Date: 2011-09-14
HUANENG CLEAN ENERGY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the defects of the above-mentioned prior art, the object of the present invention is to provide a compact flat solid oxide direct carbon fuel cell stack, through reasonable structural design, combined with bubbling bed technology, to establish a compact flat solid The oxide direct carbon fuel cell stack solves the difficulty of using a flat single cell stack for direct carbon fuel cells and the continuous feedin...

Method used

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Examples

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Embodiment 1

[0037] A compact planar solid oxide direct carbon fuel cell stack consisting of 128 anode-supported solid oxide fuel cell cells with a cell size of 10cm×10cm; graphite with a particle size of 5mm to 50μm is used as solid carbon fuel ; The anode carrier gas component is pure CO 2 After the reaction, 70% of the anode carrier gas is exported for recycling; the working temperature of the battery stack is 800°C.

[0038] Both sides of the middle and upper part of the bubbling bed are composed of 4 plate fins, which provide a larger installation area of ​​flat fuel cell cells on the basis of ensuring the sealing of the bubbling bed. There are 2×4 (horizontal×vertical) rectangular holes of about 10cm×10cm on both side walls of each plate fin, and the anode-supporting fuel cell monomers are respectively installed at the openings on the wall surface of the plate fin. Anode-supported planar fuel cells such as Figure 6 As shown, the battery cell is composed of an anode 15 , an electro...

Embodiment 2

[0041] A compact planar solid oxide direct carbon fuel cell stack consisting of 144 electrolyte-supported solid oxide fuel cell cells with a cell size of 8cm×8cm; carbon black with a particle size of 5mm to 100μm is used as solid carbon Fuel; anode carrier gas composition is 70% CO 2 +30%H 2 O, 50% of the anode carrier gas exported after the reaction is used for recycling; the working temperature of the battery stack is 900°C.

[0042] Both sides of the upper and middle parts of the bubbling bed are composed of 6 plate fins, which provide a larger installation area for flat fuel cell cells on the basis of ensuring the sealing of the bubbling bed. There are 2×3 (horizontal×vertical) rectangular holes of about 8cm×8cm on both side walls of each plate fin, and the electrolyte-supported fuel cell monomers are respectively installed at the openings on the wall surface of the plate fin. Electrolyte-supported planar fuel cells such as Figure 7 As shown, the battery cell is compos...

Embodiment 3

[0045] A compact planar solid oxide direct carbon fuel cell stack consisting of 384 cathode-supported solid oxide fuel cell cells with a cell size of 9cm×9cm; coal with a particle size of 5mm to 200μm is used as solid carbon fuel ; Anode carrier gas composition is 50% CO 2 +30%H 2 O+20%N 2 , after the reaction, the outlet anode carrier gas is directly evacuated; the working temperature of the cell stack is 1000°C.

[0046] Both sides of the middle and upper part of the bubbling bed are composed of 8 plate fins, which provide a larger installation area of ​​flat fuel cell cells on the basis of ensuring the sealing of the bubbling bed. There are 3×4 (horizontal×vertical) rectangular holes of about 9cm×9cm on both side walls of each plate fin, and the cathode-supported fuel cell monomers are respectively installed at the openings on the wall surface of the plate fin. A cathode-supported planar fuel cell such as Figure 8As shown, the battery cell is composed of an anode 15 , ...

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Abstract

The invention discloses a compact flat-plate solid oxide direct carbon fuel cell stack, which comprises a bubble column, a bubble column plate-fin, flat-plate fuel cell monomers, a grid plate, a solid carbon fuel and the like, wherein the bubble column has a rectangular structure; both sides of the middle upper part of the bubble column are plate-fin-shaped; the flat-plate fuel cell monomers are arranged on an opening on a plate-fin wall surface; an anode faces inward; a cathode faces outward; the fuel cell monomers are connected in series or in parallel through a current collecting lead to ensure the working voltage and current needed by the cell stack; the grid plate is arranged at the bottom of the bubble column; the solid carbon fuel is laid on the grid plate; an inlet anode carrier gas is fed into the bubble column through the grid plate to blow solid carbon fuel particles and keep the solid carbon fuel particles in a bubble fluidization state; an anode support, electrolyte support or cathode support type flat-plate fuel cell monomers can be adopted by the cell stack; and the working temperature of the cell stack is between 600 DEG C and 1,000 DEG C. The cell stack has a compact and reasonable structure, a larger area for the installation of a fuel cell is provided, and the volume power density of the cell stack is increased.

Description

technical field [0001] The invention relates to the technical field of direct carbon fuel cells, in particular to a compact flat solid oxide direct carbon fuel cell stack. Background technique [0002] Energy is the pillar of the national economy and the driving force necessary for the development of human society. my country is one of the few countries in the world that uses coal as the main energy source, accounting for more than 70% of the total primary energy, and for a long period of time in the future, it is difficult to change the status quo of my country's coal-based energy. Compared with developed countries, the utilization efficiency of coal-fired power generation in my country is relatively low, and the situation of energy waste and environmental pollution is serious. Therefore, it is imperative to explore clean and efficient coal utilization methods. [0003] Fuel cells can directly convert chemical energy in fuel into electrical energy, and have the advantages...

Claims

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Application Information

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IPC IPC(8): H01M8/24H01M8/04H01M8/10H01M8/241
CPCY02E60/521Y02E60/50
Inventor 许世森李晨程健徐越王保民
Owner HUANENG CLEAN ENERGY RES INST
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