A method for safe handling of charged lithium-ion batteries

A technology for safe disposal of lithium-ion batteries, applied in battery recycling, secondary batteries, circuits, etc., can solve problems such as increased cost of recycling waste batteries, achieve centralized collection and treatment, enhance anti-corrosion performance, and reduce pollution.

Active Publication Date: 2020-01-21
安徽南都华铂新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the conventional treatment process includes pyrolysis and physical separation, which need to be discharged before subsequent treatment, resulting in a significant increase in the cost of recycling waste batteries

Method used

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  • A method for safe handling of charged lithium-ion batteries
  • A method for safe handling of charged lithium-ion batteries

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Experimental program
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Effect test

Embodiment 1

[0027] A safe treatment method for charged lithium-ion batteries, including six processes of rapid crushing, rapid dispersal, negative pressure sorting plastic diaphragm, eddy current sorting shell, grinding powder, and specific gravity separation to separate the shell of the charged lithium-ion battery Body fragments, plastic diaphragm fragments, copper particles, aluminum particles and battery powder are separated individually, and the waste gas generated in the process is collected and processed in a centralized manner, and zero waste water discharge is realized.

[0028] Among them, the single crushing process of the charged lithium-ion battery shall not exceed 0.5s, and directly fall into the dispersing machine after being broken up, the dispersing time shall not exceed 0.5s, and the total crushing and dispersing process shall not exceed 1s. Negative pressure sorting requires air humidity to be kept below 20%. To reduce the generation of hydrofluoric acid and slow down the c...

Embodiment 2

[0030] A safe treatment method for charged lithium-ion batteries, including six processes of rapid crushing, rapid dispersal, negative pressure sorting plastic diaphragm, eddy current sorting shell, grinding powder, and specific gravity separation to separate the shell of the charged lithium-ion battery Body fragments, plastic diaphragm fragments, copper particles, aluminum particles and battery powder are separated individually, and the waste gas generated in the process is collected and processed in a centralized manner, and zero waste water discharge is realized.

[0031] Among them, the single crushing process of the charged lithium-ion battery shall not exceed 0.5s, and directly fall into the dispersing machine after being broken up, the dispersing time shall not exceed 0.5s, and the total crushing and dispersing process shall not exceed 1s. Negative pressure sorting requires air humidity to be kept below 20%. To reduce the generation of hydrofluoric acid and slow down the c...

Embodiment 3

[0034] A safe treatment method for charged lithium-ion batteries, including six processes of rapid crushing, rapid dispersal, negative pressure sorting plastic diaphragm, eddy current sorting shell, grinding powder, and specific gravity separation to separate the shell of the charged lithium-ion battery Body fragments, plastic diaphragm fragments, copper particles, aluminum particles and battery powder are separated individually, and the waste gas generated in the process is collected and processed in a centralized manner, and zero waste water discharge is realized.

[0035] Among them, the single crushing process of the charged lithium-ion battery shall not exceed 0.5s, and directly fall into the dispersing machine after being broken up, the dispersing time shall not exceed 0.5s, and the total crushing and dispersing process shall not exceed 1s. Negative pressure sorting requires air humidity to be kept below 20%. To reduce the generation of hydrofluoric acid and slow down the c...

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Abstract

Relating to the technical field of lithium ion battery recovery, the invention discloses a safe disposal method for charged lithium ion batteries. The method includes the following 6 processes: rapidcrushing, rapid scattering, negative pressure sorting of plastic diaphragm, eddy current sorting of shell, milling, and specific gravity separation, can achieve individual separation of shell fragments, plastic diaphragm fragments, copper particles, aluminum particles and battery powder, conducts concentrated collection disposal on the waste gas generated in the process, and realizes zero discharge of wastewater. The safe disposal method for charged lithium ion batteries provided by the invention can carried out without discharging, avoids the problem of substantially increased cost of waste battery recycling caused by the essential discharging before subsequent disposal in conventional pyrolysis and physical sorting methods.

Description

Technical field: [0001] The invention relates to the technical field of lithium ion battery recovery, in particular to a safe processing method for charged lithium ion batteries. Background technique: [0002] Since the rapid development of new energy vehicles, as a large number of power lithium-ion batteries have been scrapped, there is an urgent need for a clean and environmentally friendly way to dispose of scrap batteries. At present, conventional treatment processes include pyrolysis and physical sorting, all of which need to be discharged before subsequent treatment, which leads to a significant increase in the cost of recycling waste batteries. [0003] The present invention proposes a safe and environmentally friendly treatment method for charged batteries by studying the rapid crushing conditions, and realizes zero discharge of waste water in the process, and the waste gas is properly disposed of. Summary of the invention: [0004] The technical problem to be solved by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/54H01M10/0525
CPCH01M10/0525H01M10/54Y02E60/10Y02W30/84
Inventor 朱建楠吴国庆朱保义
Owner 安徽南都华铂新材料科技有限公司
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