Lithium-ion power battery recycling method

A power battery and recycling method technology, which is applied in the field of solid waste and electronic waste recycling, can solve the problems of high energy consumption, large environmental impact, and low efficiency, and achieve the effect of less environmental impact, small usage, and guaranteed efficiency

Active Publication Date: 2021-10-08
THE UNIV OF NOTTINGHAM NINGBO CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing waste lithium battery recycling technologies have problems such as high energy consumption, low efficiency, and large environmental impact.

Method used

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  • Lithium-ion power battery recycling method
  • Lithium-ion power battery recycling method
  • Lithium-ion power battery recycling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] S101, remove the electronic components on the waste battery;

[0068] S102, crushing 200 grams of disassembled waste batteries with a cutting crusher, and using an 8 mm bottom sieve for bottom screening;

[0069] S103. The friction scrubbing process is controlled at 60% according to the pulp density, and the mass ratio of the battery material to the friction medium is 20%. Mix 200 grams of broken waste batteries, 800 grams of friction medium quartz sand and 667 grams of water, and put them into the friction scrubbing machine. Scrub time is 10 minutes. The above ratio of friction scrubbing can significantly increase the dissociation rate of the electrode active material from the electrode metal foil, while maintaining the unfolded state of the electrode metal foil, ensuring the efficiency of subsequent triboelectric separation.

[0070] S104. Put the dissociated mixed material on the electrode sheet into a wet vibrating sieve, set the working time of the vibrating siev...

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Abstract

The invention discloses a lithium-ion power battery recycling method. The method comprises the following steps: removing electronic components of the lithium-ion power battery, crushing the dismantled lithium-ion power battery, and putting the broken lithium-ion power battery into a friction scrubbing machine In order to dissociate the positive and negative electrode materials from the aluminum film and copper film, sieve the material from the friction scrubbing machine to obtain the oversize material and the undersize material including the positive and negative electrode materials, and put the oversize material into the friction electrostatic separator for separation The HDPE film, friction medium, copper foil and aluminum foil are discharged, the undersize is put into a flat filter for dehydration, and the dehydrated undersize is put into a foam flotation machine to obtain separated negative electrode materials and positive electrode materials.

Description

technical field [0001] The invention belongs to the technical field of recycling solid waste and electronic waste, in particular to a method for recycling lithium-ion power batteries. Background technique [0002] In recent years, with the continuous growth of the production and ownership of mobile electronic devices and new energy vehicles, it has not only brought about a huge demand for lithium-ion batteries, but also brought huge opportunities and challenges to the corresponding recycling industry. With the increasing demand for lithium-ion batteries, the disposal and utilization of end-of-life batteries has become a new problem. The electrodes in lithium batteries are composed of positive and negative metal foils with active materials attached. Among them, there are many kinds of positive active materials with different characteristics. Most of the preparation materials involve scarce resources such as cobalt and nickel. The positive electrode is aluminum foil; It is ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/54H01M10/0525B03C7/00B03B7/00
CPCB03B7/00B03C7/006H01M10/0525H01M10/54Y02E60/10Y02W30/84
Inventor 塞缪尔·迪米特里·维迪嘉德摩卡王筝菲利普·赫尔尼克·迈尔斯
Owner THE UNIV OF NOTTINGHAM NINGBO CHINA
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