Method for controlling SPE water electrolysis efficiency

A technology for electrolysis of water and efficiency, applied in the electrolysis process, electrolysis components, cells, etc., can solve the problems of high cost, cumbersome process and complex technology.

Inactive Publication Date: 2015-06-17
NANJING UNIV OF TECH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is that, aiming at the defects of complex technology, cumbersome process and high cost in the existing research field, from another perspective, a set of membrane stretching operation method is designed based on the parallel pipe water channel model, and the design of SPE electrolyzed water Additional device - stretching device

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
  • Method for controlling SPE water electrolysis efficiency
  • Method for controlling SPE water electrolysis efficiency
  • Method for controlling SPE water electrolysis efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) The titanium mesh is selected as the diffusion layer, and the catalyst-free membrane is selected for the membrane electrode, and the electrolysis device and the stretching device are assembled in turn according to the requirements, and the two are combined for use, (such as attached figure 1 ), in the figure: 1, the rotating shaft, 2, the supporting frame of the stretching device, 3, the membrane electrode, 4, the SPE water electrolysis device (remove the membrane electrode part), 5, the water injection hole, 6, the escape hole, 7, the connecting wire, 8. Measuring ruler, 9. Round hole.

[0029] (2) Fill the above assembled device with water to test the electrolytic water in the natural state of the membrane, and use the potentiodynamic scanning method to test the scanning potential. Current density-potential diagram.

[0030] (3) Disassemble the electrolysis device, separate the membrane electrode from the titanium mesh that is in contact with both sides, and then...

Embodiment 2

[0034] (1) Titanium mesh is selected as the diffusion layer, and the membrane electrode is selectively applied with a Pt catalytic dosage of 2mg / cm 2 coating, assemble the electrolyzed water device and the stretching device in turn according to the requirements, and combine the two for use, (as attached figure 2 ), in the figure: 1, the rotating shaft, 2, the supporting frame of the stretching device, 3, the membrane electrode, 4, the SPE water electrolysis device (remove the membrane electrode part), 5, the water injection hole, 6, the escape hole, 7, the connecting wire, 8. Measuring ruler, 9. Round hole.

[0035] (2) Fill the above assembled device with water to test the electrolyzed water in the natural state of the coating, and use the potentiodynamic scanning method to test. The scanning potential is selected from 1.5v to 3.6v to obtain the natural state, that is, when the elongation rate is zero. Current density-potential diagram.

[0036] (3) Disassemble the electro...

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 relates to a method for controlling electrolytic efficiency of a solid electrolyte (SPE) water-electrolysis hydrogen production plant. A solid electrolyte membrane stretching device is added on the basis of the original SPE water electrolysis device to implement the controllable water electrolysis efficiency. The traditional SPE water electrolysis device comprises a frame, pole plates, a seal ring, a membrane-electrode (MEA) component and the like. The membrane stretching device mainly comprises a bracket, a rotating shaft set and a stretching quantity measuring part. The method can change the electrolytic efficiency according to needs: after one SPE electrolysis process is completed, the SPE electrolysis bath is taken down, the membrane electrode is quantitatively stretched, and the electrolysis bath is fastened again to perform the water electrolysis at a certain stretching rate. The method is simple to operate, and is convenient and feasible.

Description

1. Technical field [0001] The invention belongs to the field of hydrogen energy development, and in particular relates to a method for producing hydrogen by SPE electrolysis of water with artificially controllable efficiency. 2. Technical Background [0002] The development of society and economy has made people more and more dependent on energy, and the traditional energy storage capacity is shrinking day by day, and the consumption of a large amount of traditional energy has brought huge environmental problems at the same time. From the perspective of energy development strategy, it is urgent to find a new clean energy to replace traditional energy such as coal and oil. At present, hydrogen is regarded as the most ideal energy source in the future because of its high efficiency, cleanliness, and pollution-free characteristics. There are many sources of hydrogen, among which hydrogen production by electrolysis of water has a wide range of applications. SPE electrolysis of ...

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 Applications(China)
IPC IPC(8): C25B1/04C25B15/02
CPCC25B1/04C25B15/02C25B9/73Y02E60/36
Inventor 赵志刚郁朋辉
Owner NANJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap