Method of recovering cobalt from lithium ion battery and cobalt recovering system

A lithium-ion battery and recovery method technology, which is applied in the field of recovery of valuable metals in rechargeable batteries, can solve problems such as increased operating costs, difficulty in stabilizing high cobalt recovery rates, and increased risk of cobalt recovery operations, so as to improve safety Sexuality and the effect of reducing operating costs

Inactive Publication Date: 2006-02-08
MITSUI MINING & SMELTING CO LTD
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in an acidic solvent, in order to make hydrogen peroxide have the function of a reducing agent, it needs to coexist with an acidic agent with strong oxidizing ability such as nitric acid or hot concentrated sulfuric acid, so it is dangerous to operate, and there is a risk of increasing the cobalt recovery operation. question of risk
[0017] Furthermore, hydrogen peroxide is likely to self-decompose depending on the state of the processing solvent and the state of contact with the object to be processed, and the desired reducing age

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 of recovering cobalt from lithium ion battery and cobalt recovering system
  • Method of recovering cobalt from lithium ion battery and cobalt recovering system
  • Method of recovering cobalt from lithium ion battery and cobalt recovering system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Hereinafter, embodiments of the cobalt recovery method and cobalt recovery system in a lithium ion battery according to the present invention will be described in detail based on the drawings. Moreover, the present embodiment cannot be used to limit the present invention.

[0045] First, the method for recovering cobalt in a lithium ion battery in an embodiment of the present invention will be described in detail.

[0046] figure 1 In order to show a flow chart of the process of recovering metal cobalt from waste lithium ion batteries and defective cathodes according to the method for recovering cobalt in a lithium ion battery according to an embodiment of the present invention. And in figure 1 In the figure, the thick arrow indicates the process of recovering metallic cobalt after separating cobalt from the cobalt recovery object according to each process; the thin arrow indicates the process of re-extracting cobalt from the residue of each process.

[0047] in figure 1...

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

Method or system comprising the step of not only extracting cobalt from defective positive electrodes with a solvent but also extracting cobalt from extraction residue obtained from defective positive electrodes and magnetized matter obtained from waste lithium ion batteries and runoff batteries (step S100); the step of removing impurities contained in the cobalt extract, thereby obtaining a clean cobalt solution (step S200); the step of forming a cobalt hydroxide cake from the clean cobalt solution (step S300); and the step of electrolyzing an electrolytic solution of cobalt containing the cobalt hydroxide cake as an electrolyte to thereby precipitate metallic cobalt (step S400).

Description

technical field [0001] The invention relates to a method for recovering valuable metals in rechargeable batteries, in particular to a cobalt recovery method and a cobalt recovery system in lithium ion batteries for recovering cobalt contained in waste lithium ion batteries and defective lithium ion batteries. Background technique [0002] Hereinafter, a cobalt recovery method and a cobalt recovery system in a lithium ion battery will be described. [0003] At present, it is well known that a lithium-ion battery is a rechargeable battery with a high electric capacity per unit weight or unit volume. In recent years, such a lithium ion battery has attracted attention as a battery for electronic equipment such as a notebook computer, a mobile phone, and the like that are miniaturized or lightened, and the demand and consumption thereof are rapidly increasing. Therefore, from the viewpoint of effective resource utilization, valuable metals are recovered from used lithium ion bat...

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): H01M10/54
CPCH01M10/54Y02W30/84B09B3/00
Inventor 田边修孝馆田佐由理
Owner MITSUI MINING & SMELTING CO LTD
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