Method for improving metal lithium electrolysis current efficiency

A technology of electrolysis current and metal lithium, applied in the direction of electrolysis process and electrolysis components, can solve the problem of low current efficiency in summer, and achieve the effect of convenient and simple process operation.

Pending Publication Date: 2020-12-11
EAST CHINA UNIV OF SCI & TECH +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the object of the present invention is to solve the problem of low summer current efficiency in high temperature and high h

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] Step 1: Provide 25 ° C using the modular air-cooling sector, absolute humidity is 1.0g / m 3 Low humidity air;

[0024] Step 2: In the external arrangement operation, the temperature and humidity is placed inside and outside the workshop, and the temperature and humidity data in the working environment of the recording cell can be monitored at any time.

[0025] Step 3: To the working workshop, the low humidity air acquired in the steps, read by the temperature and humidity, and record the water vapor volume ratio of 1.5 vol.%;

[0026] Step 4: A metal lithium product is collected every 2 hours, sampling calculates current efficiency while recording temperature and humidity data in the environment of the electrolysis process.

[0027] The current efficiency is 90%.

[0028] Current efficiency calculation: Electrolytic production in 25 kA, the theoretical yield of electrolytic metallic lithium is (0.26 is a lithium electrochemical equivalent constant, with...

Example Embodiment

[0036] Example 2

[0037] Step 1: Using the modular air-cooling water unit to provide 20 ° C, absolute humidity is 0.2g / m 3 Low humidity air;

[0038] Step 2: Place the temperature and humidity meter inside and outside the operation workshop, monitor the temperature and humidity data in the working environment of the electrolytic cell at any time.

[0039] Step 3: Directly access the low humidity air acquisition in the surface of the electrolytic slot, read the number of temperature and humidity, and record the water vapor volume ratio of 0.8 vol.%;

[0040] Step 4: A metal lithium product is collected every 2 hours, sampling calculates current efficiency while recording temperature and humidity data in the environment of the electrolysis process.

[0041] The current efficiency is 90%.

[0042] Current efficiency calculation process is the same.

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 fused salt electrolysis, and particularly relates to a method for improving metal lithium electrolysis current efficiency. The method is achieved through the following steps that air humidity control is conducted on a relatively-closed electrolysis workshop, or relatively-dry air with a certain water content is directly introduced into an electrolytic cell, and electrolysis is conducted under the condition that the water content in the atmosphere in the electrolytic cell is controlled to range from 0.5 vol.% to 2 vol.%. The method is convenient and easy to operate, suitable for rapidly and efficiently improving the current efficiency in summer in high-temperature and high-humidity areas and capable of improving the current efficiency in summer by 15% or above.

Description

technical field [0001] The invention belongs to the technical field of molten salt electrolysis, in particular to a method for improving the current efficiency of metal lithium electrolysis in high-temperature and high-humidity areas in summer. Background technique [0002] Molten salt electrolysis of lithium metal is currently the main means of industrial production of lithium metal. The current efficiency of metal lithium electrolysis is low in summer in high-temperature and high-humidity areas. Generally, the average ambient temperature in summer is generally in the range of 26°C-36°C, the maximum temperature in the workshop can reach 50°C, the relative humidity is 20%-30%, and the absolute air humidity is 15g / m 3 -25g / m 3 , the water vapor volume ratio in the air is 2vol.%-3vol.%, the current efficiency is 50%-60%; the ambient temperature in winter is 5°C-25°C, the maximum temperature in the workshop can reach 30°C, and the relative humidity is 7%-20%. , the absolute ...

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): C25C3/02C25C7/06
CPCC25C3/02C25C7/06
Inventor 路贵民张松岩朱实贵孙泽李良彬于建国
Owner EAST CHINA UNIV OF SCI & 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