Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of solid oxide electrolysis cell supported by oxygen electrode and preparation method thereof

A solid oxide, electrolytic cell technology, applied in electrodes, electrolytic components, electrolytic processes, etc., can solve the problems of slow oxygen release and low electrode porosity, and achieve the effect of improving stability and good application prospects.

Active Publication Date: 2022-08-05
UNIV OF JINAN
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oxygen electrode materials are easy to sinter at high co-firing temperatures, resulting in low electrode porosity and slow oxygen release, so it is not suitable for SOECs to operate at high currents

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
  • A kind of solid oxide electrolysis cell supported by oxygen electrode and preparation method thereof
  • A kind of solid oxide electrolysis cell supported by oxygen electrode and preparation method thereof
  • A kind of solid oxide electrolysis cell supported by oxygen electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 43.1 g La 0.7 Sr 0.3 FeO 3 Powder, 18.5 g Gd0.1 Ce 0.9 O 2 The powder, 4.3 g of polyethersulfone, 24 g of N-methylpyrrolidone and 0.43 g of polyvinylpyrrolidone were placed in a ball-milling jar, and ball-milled for 60 hours to form a uniform slurry. A screen with a mesh opening of 70 μm was placed between the two molds. The slurry was poured into the assembled mold, and the upper surface of the slurry was 1.0 mm above the screen, and water was poured on top of the slurry to induce phase transition. Demould after 0.3h of phase inversion, and removed the screen. The film body was immersed in water for 2 hours to replace the solvent. Then, the film body was dried in an oven at 80°C for 10h. Finally, the film body was pre-fired, raised to 400 °C at 1 °C / min, kept for 1 h, the polymer was removed, and then raised to 1000 °C at 2 °C / min, kept for 2 h, to obtain a pre-fired film body. Separate the electrolyte powder 6g Gd 0.1 Ce 0.9 O 2 (GDC) powder and 6g (Y 2 O...

Embodiment 2

[0032] 58.7g La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 Powder, 19.2g Gd 0.1 Ce 0.9 O 2 The powder, 5.6 g of polysulfone, 22.3 g of N-methylpyrrolidone and 0.52 g of polyvinylpyrrolidone were placed in a ball-milling jar, and ball-milled for 7 hours to form a uniform slurry. A screen with a mesh opening of 150 μm was placed between the two molds. The slurry was poured into the assembled mold, and the upper surface of the slurry was 3 mm above the screen, and water was poured on top of the slurry to induce a phase transition. The mold was demolded after 3 h of phase inversion, and the screen was removed. The film body was soaked in water for 20h to replace the solvent. Then, the film body was dried in an oven at 80°C for 10h. Finally, the film body was pre-fired, raised to 400 °C at 1 °C / min, kept for 1 h, the polymer was removed, and then raised to 1000 °C at 2 °C / min, kept for 2 h to obtain a pre-fired oxygen electrode support body. A cell was prepared on an oxygen electrod...

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 belongs to the technical field of solid oxide electrolysis cells, in particular to a solid oxide electrolysis cell supported by an oxygen electrode. The preparation method is as follows: mixing oxygen electrode powder, polymer, solvent and dispersant to form a uniform slurry; placing a screen between upper and lower molds, pouring the slurry into the mold, adding a flocculant for phase transformation to obtain a film blank Remove the screen, soak, dry, and then sinter to obtain a pre-fired membrane body; add the electrolyte powder to ethanol containing a dispersant, ball mill to obtain an electrolyte slurry, and immerse the pre-fired membrane body successively The ball-milled electrolyte slurry is co-fired to form an electrolyte layer; the cathode powder is added to ethanol containing dispersant, ball-milled, and the ball-milled cathode slurry is sprayed on the electrolyte layer, fired, and adhered to the silver wire , a solid oxide electrolysis cell supported by an oxygen electrode was obtained. The present invention realizes the solid oxide electrolysis cell supported by oxygen electrode for the first time.

Description

technical field [0001] The invention belongs to the technical field of solid oxide electrolysis cells, in particular to a solid oxide electrolysis cell supported by an oxygen electrode. Background technique [0002] Replacing fossil fuels with renewable energy is an urgent problem in modern society. Among them, wind energy and solar energy are emerging clean and renewable energy sources, but both are affected by natural conditions and cannot provide energy continuously, so energy storage devices are needed. Renewable energy storage devices include energy storage batteries and electrolytic batteries. Lithium-ion and sodium-ion batteries have limited storage capacity and are difficult to apply on a large scale. Electrolytic cells can achieve continuous storage by electrolyzing CO 2 and / or H 2 O converts electricity into chemical energy. Compared with low-temperature electrolysis, high-temperature solid oxide electrolysis cells (SOEC) can utilize natural thermal energy or ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/26C04B35/622C25B11/091
CPCC04B35/2675C04B35/622C04B2235/3213C04B2235/3275C04B2235/6562C04B2235/6567
Inventor 董德华李天培
Owner UNIV OF JINAN
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com