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Environmentally-friendly and highly-efficient recovery and separation technology of lithium ion batteries in waste mobile phones

A technology of lithium-ion batteries and waste lithium batteries, which is applied in battery recycling, recycling by waste collectors, recycling technology, etc., can solve the problems of mixed batteries of used mobile phones, and achieve significant social benefits, advanced technology, and high efficiency.

Active Publication Date: 2017-04-05
安徽得盈再生资源回收有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since my country has not yet established a complete garbage classification collection system, it is inevitable that the collected waste mobile phone batteries are mixed with different types of batteries.

Method used

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  • Environmentally-friendly and highly-efficient recovery and separation technology of lithium ion batteries in waste mobile phones
  • Environmentally-friendly and highly-efficient recovery and separation technology of lithium ion batteries in waste mobile phones
  • Environmentally-friendly and highly-efficient recovery and separation technology of lithium ion batteries in waste mobile phones

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Embodiment 1

[0028] Such as Figure 1-3 As shown, an environmentally friendly and efficient recovery and separation process based on lithium-ion batteries in waste mobile phones. The main processes include salt water discharge, dismantling and crushing, alkaline leaching, acid leaching, iron powder replacement for copper precipitation, purification and impurity removal, and precursor synthesis. Each process is described in detail as follows:

[0029] (1) Salt water immersion discharge:

[0030] There is a risk of explosion when dismantling waste lithium batteries while they are live. Discharge treatment must be carried out before disposing of waste lithium-ion batteries; that is, before disassembling lithium-ion batteries, soak them in 10% salt water for 48 hours to ensure that the waste lithium-ion The remaining power of the battery is completely discharged; the salt water used for discharging in this process can be used repeatedly and replaced once a week, and the amount of water soaked...

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Abstract

The invention discloses an environmentally-friendly and highly-efficient recovery and separation technology of lithium ion batteries in waste mobile phones. The technology mainly comprises brine discharge, disassembling and crushing, alkaline leaching, acidic leaching, iron powder displacement copper precipitation, purification and impurity removal, and precursor synthesis. The technology has the characteristics of advanced process, low cost, high efficiency, substantial economic and social benefits, no discharge of three wastes, no secondary pollution to environment, and realization of cycling of mobile phone resources, so the earth is well protected.

Description

technical field [0001] The invention relates to the technical field of resource recovery, in particular to an environmentally friendly and efficient recovery and separation process based on lithium-ion batteries in waste mobile phones. Background technique [0002] Mobile phone is a widely popular mobile portable electronic device, with a large amount of social ownership and fast replacement. The refurbishment of used mobile phones and the reuse of key components such as mobile phone screens and chips have high economic value. The precious metals such as gold, silver, palladium, and indium contained in mobile phones have high resource value and have a very high recycling value. According to the latest statistical report of the Ministry of Industry and Information Technology, my country's mobile phone users have exceeded 1 billion. Both production and consumption rank first in the world. my country's mobile phone update cycle is gradually shortened, with an average of 12 to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54
CPCY02W30/84H01M10/54
Inventor 王龙
Owner 安徽得盈再生资源回收有限公司
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