Method for recycling metal from waste lithium ion battery with Ni-Co lithium manganite positive electrode materials

A technology of nickel cobalt lithium manganate and lithium ion battery, which is applied in battery recycling, waste collector recycling, recycling technology and other directions, can solve the pollution of atmospheric environment and water environment, high recycling cost, and high requirements for anti-corrosion performance of recycling equipment. High problems, to achieve the effect of easy operation, low recovery cost, and low equipment anti-corrosion requirements

Active Publication Date: 2015-04-22
LANZHOU UNIVERSITY OF TECHNOLOGY
View PDF4 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present technology provides technical benefits that include lower costs for recovering metals compared to previous methods or requiring more complicated machinery. It also allows for efficient use of resources while maintaining good quality products without causing harmful environmental impacts on their environment.

Problems solved by technology

This technical problem addressed by this patents relates to improves the recovery efficiency and quality of valuable resources such as rare earth elements (RE) contained in spent lead storage batteries containing these compounds.

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

Embodiment 1

[0025] Collect scrap lithium-ion batteries with nickel-cobalt-lithium manganese oxide cathode materials, place them in 1.0mol / L sodium hydroxide aqueous solution at room temperature for 2h discharge treatment; after discharge treatment, disassemble the scrap lithium-ion batteries, Obtain the positive electrode sheet; the ratio (g / mL) of the mass of the positive electrode sheet to the volume of the ceramic crucible is 1:15, the positive electrode sheet is packed into the ceramic crucible, and then placed in a box-type resistance furnace from room temperature to 5 ° C. Raise the furnace temperature to 550°C at a heating rate of / min and keep it warm for 20 minutes. Put the positive electrode sheet into a container filled with water according to the ratio of the mass of the positive electrode sheet to the volume of water (g / mL) of 1:50 and stir it electrically The mixer was stirred at a stirring speed of 50r / min for 20 minutes, and the temperature of the water during the stirring ...

Embodiment 2

[0027] Collect scrap lithium-ion batteries with nickel-cobalt-lithium manganese oxide cathode materials, place them in 1.0mol / L sodium hydroxide aqueous solution at room temperature for 2h discharge treatment; after discharge treatment, disassemble the scrap lithium-ion batteries, Obtain the positive electrode sheet; the ratio (g / mL) of the mass of the positive electrode sheet to the volume of the ceramic crucible is 1:15, the positive electrode sheet is packed into the ceramic crucible, and then placed in a box-type resistance furnace from room temperature to 5 ° C. Raise the furnace temperature to 550°C at a heating rate of / min and keep it warm for 20 minutes. Put the positive electrode sheet into a container filled with water according to the ratio of the mass of the positive electrode sheet to the volume of water (g / mL) of 1:50 and stir it electrically The mixer was stirred at a stirring speed of 50r / min for 20 minutes, and the temperature of the water during the stirring ...

Embodiment 3

[0029]Collect scrap lithium-ion batteries with nickel-cobalt-lithium manganese oxide cathode materials, place them in 1.0mol / L sodium hydroxide aqueous solution at room temperature for 2h discharge treatment; after discharge treatment, disassemble the scrap lithium-ion batteries, Obtain the positive electrode sheet; the ratio (g / mL) of the mass of the positive electrode sheet to the volume of the ceramic crucible is 1:15, the positive electrode sheet is packed into the ceramic crucible, and then placed in a box-type resistance furnace from room temperature to 5 ° C. Raise the furnace temperature to 550°C at a heating rate of / min and keep it warm for 20 minutes. Put the positive electrode sheet into a container filled with water according to the ratio of the mass of the positive electrode sheet to the volume of water (g / mL) of 1:50 and stir it electrically The mixer was stirred at a stirring speed of 50r / min for 20 minutes, and the temperature of the water during the stirring p...

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

A method for recycling metal from a waste lithium ion battery with Ni-Co lithium manganite positive electrode materials comprises the steps that the waste lithium ion battery is discharged and disassembled or positive electrode leftover materials and positive electrode fragments are collected to obtain a water positive plate, and roasting, water dissolution and filtration are carried out on the waste positive plate to obtain waste Ni-Co lithium manganite powder; the waste Ni-Co lithium manganite powder and sodium hydrogen sulfate are mixed according to a certain proportion and then roasted, a roasted product is obtained through leaching with water, then a sodium carbonate solution is added into the product solution for filtration, carbonate is supplemented, the proportion of Li, Ni, Co and Mn in filter residues is adjusted for conducting ball milling, compressing and roasting on the filter residues, and the Ni-Co lithium manganite positive electrode materials are obtained again; the components of the filtrate are adjusted with sulfuric acid, and sodium hydrogen sulfate obtained after crystallization treatment is carried out can be utilized again.

Description

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

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
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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