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

Process for recovering cobalt chloride from waste lithium ion battery

A lithium-ion battery and cobalt chloride technology, applied in battery recycling, waste collector recycling, cobalt halide, etc., can solve problems such as waste of resources, and achieve the effects of convenient use, simple operation process, and rational utilization of resources

Inactive Publication Date: 2015-04-29
陈静
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a process for recovering cobalt chloride from waste lithium-ion batteries, so as to solve the shortcomings of waste of resources caused by a large number of discarded lithium-ion batteries

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
  • Process for recovering cobalt chloride from waste lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0019] see figure 1 , the process flow chart of the process of recovering cobalt chloride from waste lithium-ion batteries, the waste lithium-ion batteries are disassembled by a dismantling machine, and the positive electrode sheet, diaphragm paper, copper-containing negative electrode, and aluminum shell are separated; the positive electrode sheet is in Carry out pyrolysis at a high temperature of 500-600°C; put the pyrolyzed positive electrode sheet in a ball mill for ball milling, and control the ball milling particle size to -100 mesh to account for 50%; add sodium hydroxide to the ball-milled positive electrode sheet to obtain The precipitated matter is filtered out, and press-filtered, then add 1-3mol / l hydrochloric acid solution to react ...

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 process for recovering cobalt chloride from a waste lithium ion battery. The process comprises the following steps: dismantling the waste lithium ion battery through a dismantling machine, separating a positive plate, diaphragm paper, a copper-containing negative electrode and an aluminum shell; pyrolyzing and ball-milling the positive plate, adding sodium hydroxide in the ball-milled positive plate, filtering out obtained sediment substance, carrying filter-pressing, adding 1-3mol / l of hydrochloric acid solution to react to obtain aluminum hydroxide, adding one of sulfuric acid or hydrogen peroxide in supernatant to perform leaching reaction; removing iron in leachate, and adding sodium hydroxide to secondarily remove aluminum and iron to obtain a cobalt-containing solution; extracting and removing impurity in the obtained cobalt-containing solution, extracting and separating the obtained extract liquor through P507, re-extracting the obtained cobalt-containing solution to obtain the pure cobalt solution; crystallizing and washing the obtained pure cobalt solution to obtain cobalt chloride. According to the process disclosed by the invention, the operation is simple, the use is convenient, the useful material in the lithium ion battery can be effectively recovered; and the resource is reasonably utilized.

Description

technical field [0001] The invention belongs to a method for comprehensive utilization of lithium ion batteries, in particular to a process for recovering cobalt chloride from waste lithium ion batteries. Background technique [0002] Lithium-ion batteries are widely used in electronic equipment. At present, the replacement of electronic equipment is getting faster and faster, and more and more lithium-ion batteries are being discarded, which makes the resources not be used reasonably. To develop a method to recover useful resources from lithium-ion batteries technology is very necessary. Contents of the invention [0003] The object of the present invention is to provide a process for recovering cobalt chloride from waste lithium-ion batteries, so as to solve the problem of waste of resources caused by a large number of discarded lithium-ion batteries. [0004] The present invention adopts following technical scheme to realize: [0005] The process of reclaiming cobalt ...

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): H01M10/54C01G51/08
CPCY02W30/84H01M10/54C01G51/085
Inventor 陈静
Owner 陈静
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