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One-end self-sealing bamboo joint pipe type solid oxide fuel cell/electrolytic cell and preparation method of cell/electrolytic cell stack thereof

A solid oxide and fuel cell technology, applied in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve the problems of high cost, low volume power density and low voltage of self-supporting solid oxide fuel cells, and achieve economical preparation. cost, increased film formation speed, and the effect of reducing cost and time

Pending Publication Date: 2022-07-29
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Functional layer self-supporting structures include anode-supported SOFC, cathode-supported SOFC, and electrolyte-supported tubular SOFC, each of which is supported by thickening one of the components (about 1mm). Due to the extensive use of expensive electrode and electrolyte materials as supports , so the cost of self-supporting solid oxide fuel cells is very high
In addition, self-supporting tubular SOFCs can usually only accommodate one cell in a single tube, thus, the volumetric power density and voltage are lower

Method used

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  • One-end self-sealing bamboo joint pipe type solid oxide fuel cell/electrolytic cell and preparation method of cell/electrolytic cell stack thereof
  • One-end self-sealing bamboo joint pipe type solid oxide fuel cell/electrolytic cell and preparation method of cell/electrolytic cell stack thereof
  • One-end self-sealing bamboo joint pipe type solid oxide fuel cell/electrolytic cell and preparation method of cell/electrolytic cell stack thereof

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preparation example Construction

[0054] In a first aspect, the present invention provides a method for preparing a self-sealing bamboo tube type solid oxide fuel cell / electrolyzer at one end, figure 1 The flow chart of the preparation method of the self-sealing bamboo tube type solid oxide fuel cell / electrolyte at one end prepared in the embodiment of the present invention is shown, as shown in the figure. figure 1 As shown, the preparation method comprises the following steps:

[0055] S1. Use the support powder to prepare a tubular support body with one end closed and one end open through an extrusion molding device; wherein, the tubular support body is divided into A region, B region and C region, and the A region corresponds to the The closed end of the tubular support body, the B region corresponds to the middle region of the tubular support body, the C region corresponds to the open end of the tubular support body, and the support powder is composed of different kinds of It is composed of ceramic powde...

Embodiment 1

[0089] EXAMPLES OF THE INVENTION Hereinafter, the present invention will be described in more detail by way of examples. The following description is not intended to limit the invention. The support body for the solid oxide fuel cell of the present invention is a tubular structure with one end closed, as shown in the schematic diagram. image 3 shown.

[0090] The manufacturing process of a solid oxide fuel cell support is described in accordance with the present invention. The material constituting the tube contains 3YSZ and NiO mixed powder with a mass ratio of 1:1 and 10wt% starch as a pore-forming agent, and the particle sizes are respectively 3-5 μm, 0.5-1 μm, 10-30 μm, and the mixed powder and the pore-forming agent are in Mixing in a ball mill for 6 hours, rotating speed of 360 r / min, drying and grinding at 140°C, sieving for later use, adding methyl cellulose 4wt%, glycerol 5wt%, water 14wt%, etc. as a solvent for extrusion, and mixing in a kneader After 3 hours, th...

Embodiment 2

[0102] EXAMPLES OF THE INVENTION Hereinafter, the present invention will be described in more detail by way of examples. The following description is not intended to limit the invention. The support body for the solid oxide fuel cell of the present invention is a tubular structure with one end closed, as shown in the schematic diagram. image 3 shown.

[0103] The manufacturing process of a solid oxide fuel cell support is described in accordance with the present invention. The material constituting the tube includes CSZ and NiO mixed powder with a mass ratio of 6:4 and 15wt% ammonium bicarbonate as a pore-forming agent, with particle sizes of 3-5 μm, 0.5-1 μm, and 10-30 μm, respectively. The powder was mixed in a ball mill for 6 hours, the rotating speed was 360 r / min, dried and ground at 140°C, sieved for use, and added 4wt% methylcellulose, 5wt% glycerol, 14wt% water, etc. as a solvent for extrusion molding, and placed it in a kneader. After mixing for 3 hours to obtain ...

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Abstract

The invention provides a bamboo joint tube type solid oxide fuel cell / electrolytic cell with one self-sealed end and a preparation method of a cell / electrolytic cell stack thereof, and the preparation method comprises the following steps: taking ceramic powder with different properties in a hydrogen environment as a raw material for preparing a support body to obtain a tubular metal ceramic support body blank with a closed end; and then preparing an insulating layer on the surface of the annular tube wall of the support body blank, and preparing a plurality of single batteries connected in series on the surface of the insulating layer, so that a plurality of single battery structures are prepared on the surface of the metal ceramic circular tube-shaped support body. By adopting the screen printing technology, the film forming speed of a plurality of single cell series structures on the support body is effectively improved, the preparation efficiency is effectively improved, the preparation method is simplified, the preparation cost is saved, and commercialized popularization of the solid oxide fuel cell is facilitated.

Description

technical field [0001] The invention relates to the field of energy structure optimization and solid oxide fuel cells, in particular to a method for preparing a self-sealing bamboo tube type solid oxide fuel cell / electrolyte at one end and a cell / electrolyte stack thereof. Background technique [0002] Solid oxide fuel cell (SOFC) has great potential in energy saving and emission reduction. It can directly convert chemical energy stored in fuel and oxygen into electrical energy in an efficient and environmentally friendly manner, without the limitation of the Carnot cycle, and its power generation efficiency can be more than 55%. If the SOFC is combined with other systems, the power generation efficiency can be increased to 90%. Therefore, the development of SOFC technology has a huge potential for energy saving and emission reduction. [0003] A traditional SOFC single cell consists of an anode, an electrolyte, and a cathode. According to the supporting part, the tubular ...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/2465
CPCH01M8/10H01M8/2465
Inventor 李成新陈汝妍高圆李长久
Owner XI AN JIAOTONG UNIV
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