Check patentability & draft patents in minutes with Patsnap Eureka AI!

Crushing method and system for waste lithium ion battery

A technology of lithium-ion batteries and crushing methods, which is applied in the field of waste lithium-ion battery recycling, can solve problems such as environmental threats, waste of resources, increased processing costs and difficulties, etc., to improve recycling and processing efficiency, reduce waste water and liquid generation, and save discharge The effect of the treatment process

Pending Publication Date: 2022-06-03
顺尔茨环保(北京)有限公司
View PDF19 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In 2020, the cumulative amount of scrapped power lithium-ion batteries in my country will reach 120,000-170,000 tons, and the theoretical scrapped amount of power lithium batteries will increase from 18.91Gwh in 2020 to 105.3Gwh in 2025. The content of cobalt, nickel and manganese in waste lithium batteries , Lithium, iron and aluminum and other metals and organic substances, if not recycled, will cause a huge threat and pollution to the environment, and it is also a waste of resources
Among them, the discharge treatment mainly includes physical discharge method and chemical discharge method. Physical discharge mainly uses a discharge cabinet for discharge. The advantage is that the discharge is convenient and the speed is adjustable. It depends on the discharge rate used. The rate of 0.1C-1C takes 1-10h. , but the disadvantage is that it is difficult to discharge cleanly. Even after discharging, it is easy to cause voltage rebound due to battery polarization, resulting in safety hazards in the subsequent crushing process; chemical discharge is generally performed in 5wt.% NaCl or NaSO 4 The advantage is that compared with physical discharge, there is no voltage rebound phenomenon in chemical discharge, which can realize subsequent safe crushing, but the discharge time is longer, and wastewater treatment is required after the salt water is used for a long time, which increases the cost and difficulty of treatment

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
  • Crushing method and system for waste lithium ion battery
  • Crushing method and system for waste lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 3

[0056] Embodiment 1 The crushing method of ternary lithium ion battery

[0057] In step 1, the ternary lithium ion battery is sent to a crushing device equipped with an aqueous solution of cobalt sulfate and manganese sulfate, and charged and crushed. The crushing and discharge are carried out simultaneously, wherein the total mass of cobalt sulfate and manganese sulfate is 20% of the mass of its aqueous solution. , the crushing device is filled with argon gas.

[0058] In step 2, the mixed material after crushing and discharging is dried, the drying temperature is 120°C, and the drying time is 0.5h, and the gas generated during the drying process is collected by condensation, the condensation temperature is 45°C, and the condensation time is 40h. Filled with nitrogen.

[0059] In step 3, the liquid obtained by condensation and collection is supplemented with cobalt sulfate and manganese sulfate solute, and sent back to the crushing device for reuse.

Embodiment 2

[0060] Embodiment 2 The crushing method of lithium iron phosphate battery

[0061] Step 1, the lithium iron phosphate battery is sent into the crushing device equipped with ferric chloride and ferric nitrate aqueous solution, and the charged crushing is carried out, and crushing and discharging are carried out simultaneously, wherein the total mass of ferric chloride and ferric nitrate is 13% of the quality of its aqueous solution. %, the crusher is filled with carbon dioxide

[0062] Step 2: Dry the mixed material after crushing and discharging. The drying temperature is 150°C and the drying time is 0.4h. The gas generated during the drying process is collected by condensation. The condensation temperature is 30°C and the condensation time is 25h. filled with argon

[0063] In step 3, the liquid obtained by condensation and collection is supplemented with ferric chloride and ferric nitrate solute, and sent back to the crushing device for reuse.

Embodiment 3

[0064] Embodiment 3 The crushing method of lithium iron manganese phosphate battery

[0065] Step 1, the lithium iron phosphate battery is sent into the crushing device equipped with ferrous sulfate, ferric chloride, and manganese sulfate aqueous solution, and charged to crush, crushing and discharging are carried out simultaneously, wherein the ferrous sulfate, ferric chloride and manganese sulfate are broken. The total mass is 1% of the mass of its aqueous solution, and the interior of the crushing device is filled with nitrogen.

[0066] Step 2: Dry the mixed material after crushing and discharging. The drying temperature is 100°C and the drying time is 1h. The gas generated during the drying process is collected by condensation. The condensation temperature is 50°C and the condensation time is 15h. The inside of the drying device is: vacuum.

[0067] Step 3, the liquid obtained by condensation and collection is supplemented with ferrous sulfate, ferric chloride, and manga...

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 relates to a waste lithium ion battery crushing method and system. The invention provides a method for crushing a waste lithium ion battery, and particularly relates to a method for crushing the battery in a metal salt aqueous solution. The type of metal salt in the metal salt aqueous solution is one or a combination of more than two, and the type of metal elements in the metal salt is selected from metal elements contained in the treated lithium ion battery. When the lithium ion battery is crushed in the salt solution, discharging and crushing are carried out at the same time.

Description

technical field [0001] The invention relates to the technical field of recycling waste lithium ion batteries, in particular to a method and system for crushing waste lithium ion batteries. Background technique [0002] In 2020, the cumulative scrap of power lithium-ion batteries in my country can reach 120,000-170,000 tons. The theoretical scrap of power lithium batteries will increase from 18.91Gwh in 2020 to 105.3Gwh in 2025. The content of cobalt, nickel and manganese in waste lithium batteries , lithium, iron and aluminum and other metals and organics, if not recycled, it will cause huge threats and pollution to the environment, and it is also a waste of resources. [0003] At present, the recovery and reuse of waste lithium-ion batteries mainly include key steps such as discharge, crushing, heat treatment, sorting, and hydrometallurgy. Among them, the discharge treatment mainly includes physical discharge method and chemical discharge method. Physical discharge is mainl...

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 池子翔辛国伟王向辉刘威蔡振宇
Owner 顺尔茨环保(北京)有限公司
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