Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Substrate type SOFC anode support body and preparation method and equipment thereof

A technology for anode support and manufacturing equipment, which is applied in the direction of battery electrodes, final product manufacturing, sustainable manufacturing/processing, etc. It can solve the problems of SOFC easy fracture failure, deterioration of high-temperature mechanical properties, and increased pressurization pressure, etc., to achieve increased Three-phase reaction interface, improved electrical conductivity, and increased strength

Active Publication Date: 2021-09-07
SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nickel oxide-yttria stabilized zirconia (abbreviated as NiO-YSZ in this application) anode-supported SOFC has good electrochemical performance and stability, but during operation, in order to increase the contact area between sheets, It is necessary to increase the pressure. However, the phase change toughening mechanism of zirconia ceramics fails at high temperature, which seriously deteriorates its high-temperature mechanical properties. SOFC is easy to break and fail during the pressure process, posing a safety hazard.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Substrate type SOFC anode support body and preparation method and equipment thereof
  • Substrate type SOFC anode support body and preparation method and equipment thereof
  • Substrate type SOFC anode support body and preparation method and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The invention provides a method for preparing a substrate-type SOFC anode support, comprising the steps of:

[0029] 1) Preparation of pouring slurry

[0030] In terms of parts by mass, 600-1000 parts of NiO-YSZ powder, 20-100 parts of pore-forming agent, 10-30 parts of polyacrylic acid, 150-250 parts of acrylamide monomer, 1-2.5 parts of cross-linking agent and 100 parts ~150 parts of deionized water, mix well, adjust the pH value to 9~10 with alkaline solution, then add 5~30 parts of plasticizer, mix well to obtain the mixed slurry;

[0031] The NiO content in the NiO-YSZ powder can be 40% to 70%, and the YSZ content can be 60% to 30%.

[0032] After the mixed slurry is ground, it passes through a 100-200 mesh screen, and can be mixed with a ball mill, and the discharge port of the ball mill is blocked with a 100-200 mesh screen or screen cloth, and it is first filtered through a screen during the discharge process. Degassing, and at the same time filter out the coa...

Embodiment 1

[0057] 1) In terms of parts by mass, 600 parts of NiO-YSZ powder, 50 parts of polymethyl methacrylate, 10 parts of polyacrylic acid, 150 parts of acrylamide monomer, 2 parts of methylenebisacrylamide and 150 parts of Ionized water, mixed evenly, adjusted the pH value to between 9 and 10 with ammonia water, then added 10 parts of glycerin, mixed evenly, to obtain a mixed slurry;

[0058] Transfer the mixed slurry to a ball mill, feed in batches at a ball-to-material ratio of 2:1, mix and mill for 10 hours, set a 200-mesh screen at the outlet of the ball mill, and transfer the sieved slurry to a vacuum In the stirring and degassing device, stir for 1 hour under the vacuum degree of -0.06Pa, then add 5 parts of 50% tetramethylethylenediamine aqueous solution and 2 parts of 6% ammonium persulfate aqueous solution, and mix well to obtain the pouring slurry;

[0059] 2) Pouring and molding

[0060] Lay nickel wire between two parallel glass plates to form a grid, then pour the pour...

Embodiment 2

[0063] 1) In terms of parts by mass, mix 700 parts of NiO-YSZ powder, 20 parts of starch, 20 parts of polyacrylic acid, 250 parts of acrylamide monomer, 1 part of methylenebisacrylamide and 150 parts of deionized water , using tetramethylammonium hydroxide to adjust the pH value to between 9 and 10, then add 5 parts of glycerin, and mix to obtain a mixed slurry;

[0064] Transfer the mixed slurry to a ball mill, feed in batches at a ball-to-material ratio of 2:1, mix and mill for 18 hours, set a 200-mesh screen at the outlet of the ball mill, and transfer the sieved slurry to a vacuum In the stirring and degassing device, stir for 2 hours under a vacuum of -0.06Pa, then add 2 parts of 50% tetramethylethylenediamine aqueous solution and 10 parts of 6% ammonium persulfate aqueous solution, and mix well to obtain a pouring slurry;

[0065] 2) Pouring and molding

[0066] Lay nickel wire between two parallel glass plates to form a grid, then pour the pouring slurry between the gl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a substrate type SOFC (solid oxide fuel cell) anode support, which comprises the following steps: (1) well mixing 600-1000 parts by mass of NiO-YSZ powder, 20-100 parts by mass of a pore forming agent, 10-30 parts by mass of polyacrylic acid, 150-250 parts by mass of an acrylamide monomer, 1-2.5 parts by mass of a cross-linking agent and 100-150 parts by mass of deionized water, adjusting the pH value to 9-10, adding 5-30 parts by mass of a plasticizer, and well mixing to obtain mixed slurry; and grinding the mixed slurry, sieving, stirring and degassing, adding 2-10 parts by mass of a tetramethylethylenediamine aqueous solution and 2-10 parts by mass of an ammonium persulfate aqueous solution, and well mixing to obtain castable slurry; and (2) laying nickel wires in a mold to form a grid shape, then pouring the castable slurry in the mold, carrying out drying and demolding after gelatinization to obtain a blank with a nickel net framework, and sintering the blank to obtain the substrate type SOFC anode support body. The substrate type SOFC anode support body prepared by the preparation method disclosed by the invention is relatively high in strength, good in stability and not easy to break. Meanwhile, the invention also discloses a substrate type SOFC support body and manufacturing equipment thereof.

Description

technical field [0001] The invention belongs to the technical field of solid oxide fuel cells, and in particular relates to a substrate-type SOFC anode support body and a preparation method and equipment thereof. Background technique [0002] Solid oxide fuel cell (abbreviated as SOFC in this application) is a power generation device that directly converts chemical energy stored in fuel and oxidant into electrical energy. Since solid oxide fuel cell is not limited by the Carnot cycle, it has working With the advantages of high efficiency and reliable operation, it has huge inherent advantages in resource saving, environmental protection emission, energy density, etc., and has broad application prospects. At present, the current solidified oxide fuel cells mainly have structures such as tube type, flat plate type and substrate type. Nickel oxide-yttria stabilized zirconia (abbreviated as NiO-YSZ in this application) anode-supported SOFC has good electrochemical performance a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M4/88H01M8/12
CPCH01M4/8875H01M8/12H01M2004/8684Y02P70/50
Inventor 陈大明赵世凯王重海徐传伟马腾飞李小勇李洪达张晓娇李杰
Owner SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com