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Self-sealing metal flat tube supported solid oxide fuel cell/electrolytic tank structure

A solid oxide and fuel cell technology, applied in the shape/form of fuel cells, fuel cells, fuel cell additives, etc., can solve problems such as excessive internal loss, reduced battery efficiency, and low start-up rate of solid oxide cells , to achieve the effect of improving output performance, increasing the number of cycle starts, and improving the battery start-up rate

Pending Publication Date: 2022-01-18
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a self-sealing metal flat tube supporting solid oxide fuel cell / electrolytic cell structure, which solves the problems of low start-up rate of the solid oxide battery, excessive internal loss during operation, and reduced battery efficiency. It also provides A facile preparation process realizes the easy forming of complex gas channels and the rapid production of flat tube fuel cells

Method used

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  • Self-sealing metal flat tube supported solid oxide fuel cell/electrolytic tank structure
  • Self-sealing metal flat tube supported solid oxide fuel cell/electrolytic tank structure
  • Self-sealing metal flat tube supported solid oxide fuel cell/electrolytic tank structure

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Embodiment 1

[0083] see figure 1 , figure 2 , image 3 , Figure 4 As shown, the self-sealing metal flat tube support is prepared by sintering. The material of the flat tube support is iron-chromium alloy. The distance between the two planes of the flat tube support is 8mm. 4%, and the porosity of the porous area is 45%. The insulating layer and 108 single cells were prepared by screen printing process on the upper and lower planes respectively, and the length and width of the single cells were 22mm and 15mm, respectively. The insulating layer uses CaO to stabilize ZrO 2 For ceramic materials, the porosity of the surface of the insulating layer covering the battery area is 40%, and the rest is a dense area; the preparation sequence of each functional layer of the single cell is porous anode layer (NiO-GDC), dense electrolyte layer (GDC / YSZ / GDC) , a porous cathode layer (GDC-LSCF) and a dense interconnect layer. Among them, one of the single cells located at the closed end is extende...

Embodiment 2

[0086] see figure 1 , figure 2 , image 3 , Figure 4 As shown, the self-sealing metal flat tube support is prepared by sintering. The material of the flat tube support is iron-chromium alloy. The distance between the two planes of the flat tube support is 10mm. The porosity of the porous area is 5%, and the porosity of the porous area is 45%. The insulating layer and 64 single cells were respectively prepared by screen printing process on the upper and lower planes, and the length and width of the single cells were 20mm and 12mm, respectively. The insulating layer is ZrSiO 4 For ceramic materials, the porosity of the surface of the insulating layer covering the battery area is 45%, and the rest is a dense area; the preparation sequence of each functional layer of the single cell is a porous anode layer (NiO-ScSZ), a dense electrolyte layer (ScSZ prepared by spraying method, silk YSZ), porous cathode layer (YSZ-LSM) and dense interconnect layer were prepared by screen pr...

Embodiment 3

[0089] On the basis of the conception of the above-mentioned technical solution, the present invention also provides another metal flat tube supporting solid oxide fuel cell / electrolyzer and its cell stack structure. Except for the open end (low temperature end), the structure and implementation Example 1 and 2 are the same. details as follows:

[0090] The self-sealing metal flat tube support is prepared by sintering. The material of the flat tube support is pure chromium. The distance between the two planes of the flat tube support is 8mm. The length and width of the flat tube support are 300mm and 40mm respectively, and the apparent porosity in the dense area is 5%. , The porosity of the porous area is 35%. The insulating layer and 32 single cells were prepared by screen printing process in turn on the upper and lower planes, and the length and width of the single cells were 17mm and 15mm, respectively. The insulating layer is made of MgO and MgAl 2 o 4 For the spinel c...

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Abstract

The invention provides a self-sealing metal flat tube supported solid oxide fuel cell / electrolytic cell and a cell stack structure thereof. The structure comprises an insulating layer and a flat tube supporting body prepared from a metal material; the insulating layer covers the two planes of the flat tube supporting body; a battery pack is distributed on the insulating layer and is formed by connecting a plurality of single batteries in series through connectors to form a U shape; and the current collecting layer of the first single battery and the current collecting layer of the last single battery in the battery pack are both positioned at the opening end and are respectively used for leading in and leading out current. According to the design of the metal flat tube supporting body and the insulating layer provided by the invention, the flat tube supporting body is made of metal with high thermal conductivity, low cost and high strength, so that the starting rate of the cell can be remarkably improved, the cycle starting times can be increased, and a feasible scheme is provided for a high-efficiency, high-stability and quick-starting strategy of the fuel cell.

Description

technical field [0001] The invention relates to the field of energy structure optimization and solid oxide fuel cell technology, in particular to a self-sealing metal flat tube supported solid oxide fuel cell / electrolytic cell structure. Background technique [0002] With the increasingly serious problems of energy shortage and environmental pollution, energy conversion technologies with high energy conversion efficiency and environmental friendliness are expected to replace traditional fossil fuel combustion power generation equipment with high energy consumption and low output. Among them, the solid oxide fuel cell is an environmentally friendly solid-state energy conversion device, which can realize the conversion process of hydrogen, natural gas and other hydrocarbon fuel chemical energy into electrical energy. At the same time, it also has high energy conversion efficiency and excellent fuel adaptability. [0003] At present, the structural design methods of solid oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M8/2465H01M8/00H01M8/0206H01M8/04007
CPCH01M8/02H01M8/2465H01M8/04007H01M8/0206H01M8/004H01M2008/1293Y02E60/50Y02P70/50
Inventor 李成新曹议元李延安
Owner XI AN JIAOTONG UNIV
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