Supercharge Your Innovation With Domain-Expert AI Agents!

Method for recycling lithium from waste lithium battery positive electrode material, recycled material and recycling system

A technology for waste lithium batteries and positive electrode materials, which is applied in the field of materials and recycling systems, can solve the problems of low recovery rate, achieve simple process flow, easy control of process conditions, and reduce recycling costs

Pending Publication Date: 2022-08-02
HUNAN LEAGUER HOPE TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, an object of the present application is to provide a method for reclaiming lithium from waste lithium battery positive electrode materials, to solve the low technology of recovering lithium from waste lithium battery positive electrode materials existing in the prior art question

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 recycling lithium from waste lithium battery positive electrode material, recycled material and recycling system
  • Method for recycling lithium from waste lithium battery positive electrode material, recycled material and recycling system
  • Method for recycling lithium from waste lithium battery positive electrode material, recycled material and recycling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] The method for recovering lithium from the positive electrode material of waste lithium batteries in this embodiment includes the following steps:

[0115] S201: Take 1 t of waste lithium battery positive electrode material, and the lithium content in the waste lithium battery positive electrode material is 12.6 wt %.

[0116] S202: splitting and crushing the positive electrode material of the waste lithium battery, and then sieving through a 55-mesh sieve to obtain a mixed material.

[0117] S203: The mixed material is transported to a reduction furnace with a temperature of 650° C. to the reduction furnace by 100 m 3 The natural gas is input at a flow rate of / h, and the mixed material is reduced in a reduction furnace at a conveying speed of 1.1t / h to obtain an intermediate material, which includes lithium oxide and oxides of nickel, cobalt, and manganese.

[0118] S204 : adding the intermediate material into a ball mill equipped with water, and performing ball mill...

Embodiment 2

[0125] The method for recovering lithium from the positive electrode material of waste lithium batteries in this embodiment includes the following steps:

[0126] S301: Take 1 t of waste lithium battery positive electrode material, and the lithium content in the waste lithium battery positive electrode material is 12.2 wt %.

[0127] S302: Splitting and crushing the positive electrode material of the waste lithium battery, and then sieving through a 75-mesh sieve to obtain a mixed material.

[0128] S303: Transport the mixed material to a reduction furnace with a temperature of 500° C. 3 The natural gas is input at a flow rate of / h, and the mixed material is reduced in a reduction furnace at a conveying speed of 1.0t / h to obtain an intermediate material, which includes lithium oxide and oxides of nickel, cobalt, and manganese.

[0129] S304 : adding the intermediate material into a ball mill equipped with water, and performing ball milling and leaching to obtain an intermedi...

Embodiment 3

[0136] The method for recovering lithium from the positive electrode material of waste lithium batteries in this embodiment includes the following steps:

[0137] S401: Take 1 t of waste lithium battery positive electrode material, and the lithium content in the waste lithium battery positive electrode material is 11.5 wt %.

[0138] S402: Splitting and crushing the positive electrode material of the waste lithium battery, and then sieving through a 60-mesh sieve to obtain a mixed material.

[0139] S403: The mixed material is transported to a reduction furnace with a temperature of 800° C. to the reduction furnace at 130 m 3 The natural gas is input at a flow rate of / h, and the mixed material is reduced in a reduction furnace at a conveying speed of 0.9t / h to obtain an intermediate material, which includes lithium oxide and oxides of nickel, cobalt, and manganese.

[0140] S404 : adding the intermediate material into a ball mill equipped with water, and performing ball mill...

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 provides a method for recycling lithium from a waste lithium battery positive electrode material, a recycled material and a recycling system.The method for recycling lithium from the waste lithium battery positive electrode material comprises the following steps that the waste lithium battery positive electrode material is pretreated to obtain a mixed material, and the mixed material comprises nickel cobalt lithium manganate; reducing gas is adopted for reducing the mixed material, and an intermediate material is obtained; carrying out leaching treatment on the intermediate material to obtain intermediate slurry; filtering the intermediate slurry to obtain a first filtrate; carrying out carbonization treatment on the first filtrate to obtain a mixed solution which comprises lithium bicarbonate; carrying out concentration treatment on the mixed solution to obtain a concentrated solution; the concentrated solution is subjected to decarburization treatment, decarburized slurry is obtained, and the decarburized slurry comprises lithium hydroxide; and filtering the decarbonized slurry to obtain a lithium hydroxide solution. The process flow is simple, process conditions are easy to control, requirements on equipment are not high, harmful substances are not generated in the process, and the method is green and environment-friendly.

Description

technical field [0001] The present application belongs to the technical field of ternary lithium battery recycling, and more specifically, relates to a method for recycling lithium from a positive electrode material of a waste lithium battery, a recovered material and a recycling system. Background technique [0002] Due to the advantages of high operating voltage, high specific energy, long cycle life and small self-discharge, lithium-ion batteries are favored by people and are widely used in mobile communications, electric vehicles and other fields. [0003] At present, the lithium-ion batteries on the market are mainly ternary lithium batteries. The positive electrode material used in the ternary lithium battery is nickel cobalt lithium manganate. These positive electrode materials contain precious metal lithium resources. Due to the large amount of cathode materials used in lithium-ion batteries, the consumption of non-renewable metal resources is very large. Therefore, ...

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): H01M10/54
CPCH01M10/54Y02W30/84
Inventor 刘会基任崇
Owner HUNAN LEAGUER HOPE TECH CO LTD
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